IPSec tunnel is disabled

We have 3 IPSec tunnel set up between the cisco 1760 router and PIX 515e. IPSec tunnel is down by intermittent & son come only after compensation isakmp crypto & clear crypto its next to the router.

do we need to configure something else in router and end of pix so that tunnels are still in Active state (QM_IDLE).

Looks like the PIX loses its connection and the router is unable to say that the PIX has dropped.

Try the isakmp keepalive on both devices configuration but also check network links extended features.

See you soon,.

Paul.

Tags: Cisco Security

Similar Questions

How to disable a particular IPSec tunnel on Cisco router

Hi guys,.

Someone knows a way to termporarily disable an IPSec tunnel on a Cisco router provided individual:

-No configuration changes

-Without affecting the other IPSec tunnels running

-GRE is not used, so there is no tunnel interface to close

Or in any event nearest to you to meet the requirement above?

Thank you

Andrew

Andrew,

There is no way to 'turn off' the tunnel without changing the config.

I think the easiest would be to get the card crypto for this particular tunnel and remove the peer or the ACL:

for example:

labmap 10 ipsec-isakmp crypto map

no counterpart set 10.0.0.1

labmap 10 ipsec-isakmp crypto map

no correspondence address 100

or you can remove the key isakmp for this tunnel, that would, for example:

No cisco123 key crypto isakmp 10.0.0.1 address

That would prevent the tunnel to come without affecting the other tunnels.

I hope this helps.

Raga

IPSec Tunnel permanent between two ASA

Hello

I configured a VPN IPSec tunnel between two ASA 5505 firewall. I want to assure you as the IPSec tunnel (this is why the security association) is permanent and do not drop due to the idle state.

What should I do?

Thanks for any help

Yves

Disables keepalive IKE processing, which is enabled by default.

(config) #tunnel - 10.165.205.222 group ipsec-attributes

KeepAlive (ipsec-tunnel-config) #isakmp disable

Set a maximum time for VPN connections with the command of vpn-session-timeout in group policy configuration mode or username configuration mode:

attributes of hostname (config) #-Group Policy DfltGrpPolicy
hostname (Group Policy-config) #vpn - idle - timeout no

attributes of hostname (config) #-Group Policy DfltGrpPolicy
hostname (Group Policy-config) #vpn - session - timeout no

Thank you

Ajay

DROP in flow of the IPSec tunnel

Hello

I am trying to use a VPN, who worked on one connection ASA months on ASA9.1 (2). I've updated to ASA9.1 11 (6) and it has stopped working.

This is the remote ASA5505s making an IPSEC connection-a network head 5520. I can ride preceding and following 2 and 11 9.1 9.1 (6) and while the configuration does not change, the VPN starts working on 9.1 2

Vpn connects, but there is no packets sent or received...

I get this packet tracer...

Output of the command: "packet - trace entry tcp teeessyou 192.168.190.2 5000 192.168.195.1 detail 80.

Phase: 1
Type: ACCESS-LIST
Subtype:
Result: ALLOW
Config:
Implicit rule
Additional information:
Direct flow from returns search rule:
ID = 0xae1308e8, priority = 1, domain = allowed, deny = false
hits = 622, user_data = 0 x 0, cs_id = 0 x 0, l3_type = 0 x 8
Mac SRC = 0000.0000.0000, mask is 0000.0000.0000
DST = 0000.0000.0000 Mac, mask is 0100.0000.0000
input_ifc = teeessyou, output_ifc = any

Phase: 2
Type: UN - NAT
Subtype: static
Result: ALLOW
Config:
NAT (teeessyou, outside) static source all all static destination teeessyou_ENCODERS teeessyou_ENCODERS
Additional information:
NAT divert on exit to the outside interface
Untranslate 192.168.195.1/80 to 192.168.195.1/80

Phase: 3
Type: ACCESS-LIST
Subtype: Journal
Result: ALLOW
Config:
Access-group teeessyou_access_in in the teeessyou interface
teeessyou_access_in of access allowed any ip an extended list
Additional information:
Direct flow from returns search rule:
ID = 0xae24d310, priority = 13, area = allowed, deny = false
hits = 622, user_data is 0xab6b23c0, cs_id = 0 x 0, use_real_addr, flags = 0 x 0 = 0 protocol
IP/ID=0.0.0.0 SRC, mask = 0.0.0.0, port = 0, = 0 tag
IP/ID=0.0.0.0 DST, mask is 0.0.0.0, port = 0, tag = 0, dscp = 0 x 0
input_ifc = teeessyou, output_ifc = any

Phase: 4
Type: NAT
Subtype:
Result: ALLOW
Config:
NAT (teeessyou, outside) static source all all static destination teeessyou_ENCODERS teeessyou_ENCODERS
Additional information:
Definition of static 192.168.190.2/5000 to 192.168.190.2/5000
Direct flow from returns search rule:
ID = 0xae1ea5a8, priority = 6, area = nat, deny = false
hits = 622, user_data is 0xae1e9c58, cs_id = 0 x 0, flags = 0 x 0 = 0 protocol
IP/ID=0.0.0.0 SRC, mask = 0.0.0.0, port = 0, = 0 tag
IP/ID=192.168.192.0 DST, mask is 255.255.224.0, port = 0, tag = 0, dscp = 0 x 0
input_ifc = teeessyou, output_ifc = external

Phase: 5
Type: NAT
Subtype: volatile
Result: ALLOW
Config:
Additional information:
Direct flow from returns search rule:
ID = 0xa9678858, priority = 1, domain = nat-volatile, deny = true
hits = 105, user_data = 0 x 0, cs_id = 0 x 0, reverse, use_real_addr, flags = 0 x 0, Protocol = 6
IP/ID=0.0.0.0 SRC, mask = 0.0.0.0, port = 0, = 0 tag
IP/ID=0.0.0.0 DST, mask is 0.0.0.0, port = 0, tag = 0, dscp = 0 x 0
input_ifc = none, output_ifc = any

Phase: 6
Type: IP-OPTIONS
Subtype:
Result: ALLOW
Config:
Additional information:
Direct flow from returns search rule:
ID = 0xae136910, priority = 0, sector = inspect-ip-options, deny = true
hits = 622, user_data = 0 x 0, cs_id = 0 x 0, reverse, flags = 0 x 0 = 0 protocol
IP/ID=0.0.0.0 SRC, mask = 0.0.0.0, port = 0, = 0 tag
IP/ID=0.0.0.0 DST, mask is 0.0.0.0, port = 0, tag = 0, dscp = 0 x 0
input_ifc = teeessyou, output_ifc = any

Phase: 7
Type: VPN
Subtype: encrypt
Result: ALLOW
Config:
Additional information:
Direct flow from returns search rule:
ID = 0xaeec4328, priority = 70, domain = encrypt, deny = false
hits = 65, user_data is 0xb7dc, cs_id = 0 x 0, reverse, flags = 0 x 0 = 0 protocol
IP/ID=0.0.0.0 SRC, mask = 0.0.0.0, port = 0, = 0 tag
IP/ID=192.168.195.0 DST, mask is 255.255.255.0, port = 0, tag = 0, dscp = 0 x 0
input_ifc = none, output_ifc = external

Phase: 8
Type: NAT
Subtype: rpf check
Result: ALLOW
Config:
NAT (teeessyou, outside) static source all all static destination teeessyou_ENCODERS teeessyou_ENCODERS
Additional information:
Direct flow from returns search rule:
ID = 0xae1eae48, priority = 6, area = nat-reversed, deny = false
hits = 129, user_data is 0xae1e9d10, cs_id = 0 x 0, use_real_addr, flags = 0 x 0 = 0 protocol
IP/ID=0.0.0.0 SRC, mask = 0.0.0.0, port = 0, = 0 tag
IP/ID=192.168.192.0 DST, mask is 255.255.224.0, port = 0, tag = 0, dscp = 0 x 0
input_ifc = teeessyou, output_ifc = external

Phase: 9
Type: VPN
Subtype: ipsec-tunnel-flow
Result: DECLINE
Config:
Additional information:
Reverse flow from returns search rule:
ID = 0xaea9f6b0, priority = 69 = ipsec-tunnel-flow area, deny = false
hits = 129, user_data = 0 x 0, cs_id = 0xaea999c0, reverse, flags = 0 x 0 = 0 protocol
IP/ID=192.168.192.0 SRC, mask = 255.255.224.0, port = 0, = 0 tag
IP/ID=192.168.190.0 DST, mask is 255.255.255.0, port = 0, tag = 0, dscp = 0 x 0
input_ifc = out, output_ifc = any

Hello Spencerallsop,

I recommend to add the keyword "no-proxy-arp" the end of the NAT statement, so the ASA try to answer queries ARP for the traffic(VPN interesting traffic), also this last phase 9 usually shows ignored due to a filter VPN defined in sometimes group policy, make sure you have not a filter VPN in a group policy that affect this tunnel then you will need to do the following:

1. remove the NAT statement:

-no nat (teeessyou, outside) static source all all static destination teeessyou_ENCODERS teeessyou_ENCODERS

2 fix the NAT statement with the keyword "No.-proxy-arp" :

-nat (teeessyou, outside) static source any any destination static teeessyou_ENCODERS teeessyou_ENCODERS non-proxy-arp

3 disable the VPN ISA SA:

-claire crypto ikev1 his

4. run the packet tracer to check that the L2L has developed,

To be honest I wouldn't recommend move you to 9.1.7 since it has some problems with the ARP entries, and it affects AnyConnect SSL somehow, which is still under investigation.

In fact, this bug affects 9.1.7 (may affect your environment):

- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCuy28710

Please don't forget to rate and score as of this post, keep me posted!

Kind regards

David Castro,

ASA: VPN IPSEC Tunnel from 5505(ver=8.47) to 5512 (ver = 9.23)

Hi-

We have connected tunnel / VPN configuration between an ASA 5505 - worm = 8.4 (7) and 5512 - worm = 9.2 (3).
We can only ping in a sense - 5505 to the 5512, but not of vice-versa(5512 to 5505).

Networks:

Local: 192.168.1.0 (answering machine)
Distance: 192.168.54.0 (initiator)

See details below on our config:

SH run card cry

card crypto outside_map 2 match address outside_cryptomap_ibfw
card crypto outside_map 2 pfs set group5
outside_map 2 peer XX crypto card game. XX.XXX.XXX
card crypto outside_map 2 set transform-set ESP-AES-256-SHA ikev1
crypto map outside_map 2 set ikev2 AES256 ipsec-proposal

outside_map interface card crypto outside

Note:
Getting to hit numbers below on rules/ACL...

SH-access list. I have 54.0

permit for access list 6 outside_access_out line scope ip 192.168.1.0 255.255.255.0 192.168.54.0 255.255.255.0 (hitcnt = 15931) 0x01aecbcc
permit for access list 1 outside_cryptomap_ibfw line extended ip object NETWORK_OBJ_192.168.1.0_24 object NETWORK_OBJ_192.168.54.0_24 (hitcnt = 3) 0xa75f0671
access-list 1 permit line outside_cryptomap_ibfw extended ip 192.168.1.0 255.255.255.0 192.168.54.0 255.255.255.0 (hitcnt = 3) 0xa75f0671

SH run | I have access-group
Access-group outside_access_out outside interface

NOTE:
WE have another working on the 5512 - VPN tunnel we use IKE peer #2 below (in BOLD)...

HS cry his ikev1

IKEv1 SAs:

HIS active: 2
Generate a new key SA: 0 (a tunnel report Active 1 and 1 to generate a new key during the generate a new key)
Total SA IKE: 2

1 peer IKE: XX. XX.XXX.XXX
Type: L2L role: answering machine
Generate a new key: no State: MM_ACTIVE
2 IKE peers: XXX.XXX.XXX.XXX
Type: L2L role: answering machine
Generate a new key: no State: MM_ACTIVE

SH run tunnel-group XX. XX.XXX.XXX
tunnel-group XX. XX.XXX.XXX type ipsec-l2l
tunnel-group XX. XX.XXX.XXX General-attributes
Group - default policy - GroupPolicy_XX.XXX.XXX.XXX
tunnel-group XX. XX.XXX.XXX ipsec-attributes
IKEv1 pre-shared-key *.
remote control-IKEv2 pre-shared-key authentication *.

SH run | I have political ikev1

ikev1 160 crypto policy
preshared authentication
aes-256 encryption
Group 5
life 86400

SH run | I Dynamics
NAT interface dynamic obj - 0.0.0.0 source (indoor, outdoor)
NAT source auto after (indoor, outdoor) dynamic one interface

NOTE:
To from 5512 at 5505-, we can ping a host on the remote network of ASA local

# ping inside the 192.168.54.20
Type to abort escape sequence.
Send 5, echoes ICMP 100 bytes to 192.168.54.20, wait time is 2 seconds:
!!!!!
Success rate is 100 per cent (5/5), round-trip min/avg/max = 30/32/40 ms

Determination of 192.168.1.79 - local host route to 192.168.54.20 - remote host - derivation tunnel?

The IPSEC tunnel check - seems OK?

SH crypto ipsec his
Interface: outside
Tag crypto map: outside_map, seq num: 2, local addr: XX.XXX.XXX.XXX

outside_cryptomap_ibfw to access ip 192.168.1.0 scope list allow 255.255.255.0 192.168.54.0 255.255.255.0
local ident (addr, mask, prot, port): (192.168.1.0/255.255.255.0/0/0)
Remote ident (addr, mask, prot, port): (192.168.54.0/255.255.255.0/0/0)
current_peer: XX. XX.XXX.XXX

#pkts program: 4609, #pkts encrypt: 4609, #pkts digest: 4609
#pkts decaps: 3851, #pkts decrypt: 3851, #pkts check: 3851
compressed #pkts: 0, unzipped #pkts: 0
#pkts uncompressed: 4609, model of #pkts failed: 0, #pkts Dang failed: 0
success #frag before: 0, failures before #frag: 0, #fragments created: 0
Sent #PMTUs: 0, #PMTUs rcvd: 0, reassembly: 20th century / of frgs #decapsulated: 0
#TFC rcvd: 0, #TFC sent: 0
#Valid errors ICMP rcvd: 0, #Invalid ICMP errors received: 0
#send errors: 0, #recv errors: 0

local crypto endpt. : XX.XXX.XXX.XXX/0, remote Start crypto. : XX. XX.XXX.XXX/0
Path mtu 1500, ipsec 74 (44) generals, media, mtu 1500
PMTU time remaining: 0, political of DF: copy / df
Validation of ICMP error: disabled, TFC packets: disabled
current outbound SPI: CDC99C9F
current inbound SPI: 06821CBB

SAS of the esp on arrival:
SPI: 0x06821CBB (109190331)
transform: aes-256-esp esp-sha-hmac no compression
running parameters = {L2L, Tunnel, group 5 PFS, IKEv1}
slot: 0, id_conn: 339968, crypto-card: outside_map
calendar of his: service life remaining (KB/s) key: (3914789/25743)
Size IV: 16 bytes
support for replay detection: Y
Anti-replay bitmap:
0xFFFFFFFF to 0xFFFFFFFF
outgoing esp sas:
SPI: 0xCDC99C9F (3452542111)
transform: aes-256-esp esp-sha-hmac no compression
running parameters = {L2L, Tunnel, group 5 PFS, IKEv1}
slot: 0, id_conn: 339968, crypto-card: outside_map
calendar of his: service life remaining (KB/s) key: (3913553/25743)
Size IV: 16 bytes
support for replay detection: Y
Anti-replay bitmap:
0x00000000 0x00000001

--> The local ASA 5512 - where we have questions - tried Packet Tracer... seems we receive requests/responses...

SH cap CAP

34 packets captured

1: 16:41:08.120477 192.168.1.79 > 192.168.54.20: icmp: echo request
2: 16:41:08.278138 192.168.54.20 > 192.168.1.79: icmp: echo request
3: 16:41:08.278427 192.168.1.79 > 192.168.54.20: icmp: echo reply
4: 16:41:09.291992 192.168.54.20 > 192.168.1.79: icmp: echo request
5: 16:41:09.292282 192.168.1.79 > 192.168.54.20: icmp: echo reply

--> On the ASA 5505 distance - we can ping through the 5512 to the local host (192.168.1.79)

SH cap A2

42 packets captured

1: 16:56:16.136559 802. 1 q vlan P0 192.168.54.20 #1 > 192.168.1.79: icmp: echo request
2: 16:56:16.168860 802. 1 q vlan P0 192.168.1.79 #1 > 192.168.54.20: icmp: echo reply
3: 16:56:17.140434 802. 1 q vlan P0 192.168.54.20 #1 > 192.168.1.79: icmp: echo request
4: 16:56:17.171652 802. 1 q vlan P0 192.168.1.79 #1 > 192.168.54.20: icmp: echo reply
5: 16:56:18.154426 802. 1 q vlan P0 192.168.54.20 #1 > 192.168.1.79: icmp: echo request
6: 16:56:18.186178 802. 1 q vlan P0 192.168.1.79 #1 > 192.168.54.20: icmp: echo reply
7: 16:56:19.168417 802. 1 q vlan P0 192.168.54.20 #1 > 192.168.1.79: icmp: echo request

--> Package trace on 5512 does no problem... but we cannot ping from host to host?

entry Packet-trace within the icmp 192.168.1.79 8 0 detailed 192.168.54.20

Phase: 4
Type: CONN-SETTINGS
Subtype:
Result: ALLOW
Config:
class-map default class
match any
Policy-map global_policy
class class by default
Decrement-ttl connection set
global service-policy global_policy
Additional information:
Direct flow from returns search rule:
ID = 0x7fffa2d0ba90, priority = 7, area = conn-set, deny = false
hits = 4417526, user_data = 0x7fffa2d09040, cs_id = 0 x 0, use_real_addr, flags = 0 x 0 = 0 protocol
IP/ID=0.0.0.0 SRC, mask = 0.0.0.0, port = 0, = 0 tag
IP/ID=0.0.0.0 DST, mask is 0.0.0.0, port = 0, tag = 0, dscp = 0 x 0
input_ifc = output_ifc = any to inside,

Phase: 5
Type: NAT
Subtype:
Result: ALLOW
Config:
NAT interface dynamic obj - 0.0.0.0 source (indoor, outdoor)
Additional information:
Definition of dynamic 192.168.1.79/0 to XX.XXX.XXX.XXX/43904
Direct flow from returns search rule:
ID = 0x7fffa222d130, priority = 6, area = nat, deny = false
hits = 4341877, user_data = 0x7fffa222b970, cs_id = 0 x 0, flags = 0 x 0 = 0 protocol
IP/ID=0.0.0.0 SRC, mask = 0.0.0.0, port = 0, = 0 tag
IP/ID=0.0.0.0 DST, mask is 0.0.0.0, port = 0, tag = 0, dscp = 0 x 0
input_ifc = inside, outside = output_ifc

...

Phase: 14
Type: CREATING STREAMS
Subtype:
Result: ALLOW
Config:
Additional information:
New workflow created with the 7422689 id, package sent to the next module
Information module for forward flow...
snp_fp_tracer_drop
snp_fp_inspect_ip_options
snp_fp_inspect_icmp
snp_fp_translate
snp_fp_adjacency
snp_fp_fragment
snp_ifc_stat

Information for reverse flow...
snp_fp_tracer_drop
snp_fp_inspect_ip_options
snp_fp_translate
snp_fp_inspect_icmp
snp_fp_adjacency
snp_fp_fragment
snp_ifc_stat

Result:
input interface: inside
entry status: to the top
entry-line-status: to the top
output interface: outside
the status of the output: to the top
output-line-status: to the top
Action: allow

--> On remote ASA 5505 - Packet track is good and we can ping remote host very well... dunno why he "of Nations United-NAT?

Destination - initiator:

entry Packet-trace within the icmp 192.168.54.20 8 0 detailed 192.168.1.79

...
Phase: 4
Type: UN - NAT
Subtype: static
Result: ALLOW
Config:
NAT (inside, outside) static source NETWORK_OBJ_192.168.54.0_24 NETWORK_OBJ_192.168.54.0_24 NETWORK_OBJ_192.168.1.0_24 NETWORK_OBJ_192.168.1.0_24 non-proxy-arp-search of route static destination
Additional information:
NAT divert on exit to the outside interface
Untranslate 192.168.1.79/0 to 192.168.1.79/0
...

Summary:
We "don't" ping from a host (192,168.1.79) on 5512 - within the network of the 5505 - inside the network host (192.168.54.20).
But we can ping the 5505 - inside the network host (192.168.54.20) 5512 - inside the network host (192.168.1.79).

Please let us know what other details we can provide to help solve, thanks for any help in advance.

-SP

Well, I think it is a NAT ordering the issue.

Basically as static and this NAT rule-

NAT interface dynamic obj - 0.0.0.0 source (indoor, outdoor)

are both in article 1 and in this article, it is done on the order of the rules so it does match the dynamic NAT rule rather than static because that seems to be higher in the order.

To check just run a 'sh nat"and this will show you what order everthing is in.

The ASA is working its way through the sections.

You also have this-

NAT source auto after (indoor, outdoor) dynamic one interface

which does the same thing as first statement but is in section 3, it is never used.

If you do one of two things-

(1) configure the static NAT statement is above the dynamic NAT in section 1 that is to say. You can specify the command line

or

(2) remove the dynamic NAT of section 1 and then your ASA will use the entry in section 3.

There is a very good document on this site for NAT and it is recommended to use section 3 for your general purpose NAT dynamic due precisely these questions.

It is interesting on your ASA 5505 you duplicated your instructions of dynamic NAT again but this time with article 2 and the instructions in section 3 that is why your static NAT works because he's put in correspondence before all your dynamic rules.

The only thing I'm not sure of is you remove the dynamic NAT statement in article 1 and rely on the statement in section 3, if she tears the current connections (sorry can't remember).

Then you can simply try to rearrange so your static NAT is above it just to see if it works.

Just in case you want to see the document here is the link-

https://supportforums.Cisco.com/document/132066/ASA-NAT-83-NAT-operation-and-configuration-format-CLI

Jon

IPSec Tunnel upward, but not accessible from local networks

Hello

I have an ASA5520 and a Snapgear. The IPSec tunnel is in place and works very well. But I am not able to access the local LAN on both sides. Here are a few setups:

SH crypt isakmp his

Active SA: 1 Rekey SA: 0 (A tunnel will report 1 Active and 1 Rekey SA during rekey) Total IKE SA: 1 1 IKE Peer: 10.10.10.2 Type : L2L Role : responder Rekey : no State : AM_ACTIVE

Crypto/isakmp:

crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac crypto ipsec transform-set ESP-DES-SHA esp-des esp-sha-hmac crypto ipsec transform-set ESP-DES-MD5 esp-des esp-md5-hmac crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac crypto ipsec transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac crypto ipsec transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac crypto ipsec transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac crypto ipsec transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac crypto ipsec security-association lifetime seconds 28800 crypto ipsec security-association lifetime kilobytes 4608000 crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set pfs group1 crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA ESP-3DES-MD5 ESP-DES-SHA ESP-DES-MD5 crypto map outside_map 65535 ipsec-isakmp dynamic SYSTEM_DEFAULT_CRYPTO_MAP crypto map outside_map interface outside crypto map IPSECTEST_map0 1 match address IPSECTEST_cryptomap crypto map IPSECTEST_map0 1 set peer 10.10.10.2 crypto map IPSECTEST_map0 1 set transform-set ESP-3DES-SHA crypto map IPSECTEST_map0 1 set nat-t-disable crypto map IPSECTEST_map0 1 set phase1-mode aggressive crypto map IPSECTEST_map0 interface IPSECTEST crypto isakmp enable outside crypto isakmp enable IPSECTEST crypto isakmp policy 10 authentication pre-share encryption 3des hash sha group 2 lifetime 3600

Route SH:

C 172.16.3.0 255.255.255.0 is directly connected, VLAN10 C 10.10.10.0 255.255.255.0 is directly connected, IPSECTEST C 192.168.112.0 255.255.254.0 is directly connected, inside

access-list:

IPSECTEST_cryptomap list extended access allowed object-group DM_INLINE_PROTOCOL_1 172.16.3.0 255.255.255.0 object 172.20.20.0

and here's the scenario:

If I make a ping of the asa to the Remote LAN, I got this:

ciscoasa (config) # ping 172.20.20.1
Type to abort escape sequence.
Send 5, echoes ICMP 100 bytes to 10.172.20.20.1, wait time is 2 seconds:
No route to the host 172.20.20.1

Success rate is 0% (0/1)

No idea what I lack?

Here's how to set up NAT ASA 8.3 exemption:

network object obj - 172.16.3.0
172.16.3.0 subnet 255.255.255.0

network object obj - 172.20.20.0
172.20.20.0 subnet 255.255.255.0

NAT (inside, outside) source static obj - 172.16.3.0 obj - 172.16.3.0 destination static obj - 172.20.20.0 obj - 172.20.20.0

Here's how it looks to the ASA 8.2 and below:

Inside_nat0_outbound to access extended list ip 172.16.3.0 allow 255.255.255.0 172.20.20.0 255.255.255.0
NAT (inside) 0-list of access Inside_nat0_outbound

Cisco 1841 ipsec tunnel protocol down after a minute

I have a strange problem where im manages to get a tha cisco ipsec tunnel 1841 to a RV016 linksys/cisco for about a minute and ping/encrypt the packets through the linen for about a minute before it breaks down. I tried different configuration and it all results in the tunnel for a minute then descend to come. I don't know if im hitting a bug and decide to if im doing something wrong.

any help is appreciated paul

RV016 firmware 2.0.18

Cisco 1841: C1841-ADVENTERPRISEK9-M), Version 12.4 (24) T

my config

no default isakmp crypto policy

!

crypto ISAKMP policy 1

BA 3des

md5 hash

preshared authentication

Group 2

lifetime 28800

ISAKMP crypto key address 0.0.0.0 eaton1234 0.0.0.0

!

!

Crypto ipsec transform-set esp-3des esp-sha-hmac ESSTS

transport mode

no default crypto ipsec transform-set

!

Crypto ipsec profile ipsec_profile1

Description in the location main site to site VPN tunnel

game of transformation-ESSTS

PFS group2 Set

!

!

!

!

!

!

!

Tunnel1 interface

Description of the location of the hand

IP unnumbered Serial0/0/0

source of tunnel Serial0/0/0

destination 209.213.x.x tunnel

ipv4 ipsec tunnel mode

tunnel path-mtu-discovery

protection of ipsec profile ipsec_profile1 tunnel

!

a debug output

Apr 24 16:42:07: IPSEC (validate_proposal_request): part #1 the proposal

Apr 24 16:42:07: IPSEC (validate_proposal_request): part #1 of the proposal

(Eng. msg key.) Local INCOMING = 209.213.xx.46, distance = 209.213.xx.164,.

local_proxy = 10.20.86.0/255.255.255.0/0/0 (type = 4),

remote_proxy = 10.0.0.0/255.255.255.0/0/0 (type = 4),

Protocol = ESP, transform = NONE (Tunnel),

lifedur = 0 and 0kb in

SPI = 0 x 0 (0), id_conn = 0, keysize = 0, flags = 0 x 0

Apr 24 16:42:07: mapdb Crypto: proxy_match

ADR SRC: 10.20.86.0

ADR DST: 10.0.0.0

Protocol: 0

SRC port: 0

DST port: 0

Apr 24 16:42:07: IPSEC (key_engine): had an event of the queue with 1 KMI message (s)

Apr 24 16:42:07: mapdb Crypto: proxy_match

ADR SRC: 10.20.86.0

ADR DST: 10.0.0.0

Protocol: 0

SRC port: 0

DST port: 0

Apr 24 16:42:07: IPSEC (policy_db_add_ident): src dest 10.0.0.0, 10.20.86.0, dest_port

0

Apr 24 16:42:07: IPSEC (create_sa): its created.

(his) sa_dest = 209.213.xx.46, sa_proto = 50,.

sa_spi = 0x4CF51011 (1291128849).

sa_trans = sa_conn_id of hmac-sha-esp, esp-3des = 2045

sa_lifetime(k/sec) = (4463729/3600)

Apr 24 16:42:07: IPSEC (create_sa): its created.

(his) sa_dest = 209.213.xx.164, sa_proto = 50,.

sa_spi = 0x1EB77DAF (515341743).

sa_trans = sa_conn_id of hmac-sha-esp, esp-3des = 2046

sa_lifetime(k/sec) = (4463729/3600)

Apr 24 16:42:07: % LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel1, sta changed

you to

Apr 24 16:42:07: IPSEC (key_engine): had an event of the queue with 1 KMI message (s)

Apr 24 16:42:07: IPSEC (key_engine_enable_outbound): rec would notify of ISAKMP

Apr 24 16:42:07: IPSEC (key_engine_enable_outbound): select SA with spinnaker 515341743/50

Apr 24 16:42:07: IPSEC (update_current_outbound_sa): update peer 209.213.xx.164 curre

NT his outgoing to SPI 1EB77DAF

Apr 24 16:42:12: IPSEC (key_engine): request timer shot: count = 1,.

local (identity) = 209.213.xx.46, distance = 209.213.xx.164,

local_proxy = 0.0.0.0/0.0.0.0/0/0 (type = 4),

remote_proxy = 0.0.0.0/0.0.0.0/0/0 (type = 4)

Apr 24 16:42:12: IPSEC (sa_request):,.

(Eng. msg key.) Local OUTGOING = 209.213.xx.46, distance = 209.213.xx.164,.

local_proxy = 0.0.0.0/0.0.0.0/0/0 (type = 4),

remote_proxy = 0.0.0.0/0.0.0.0/0/0 (type = 4),

Protocol = ESP, transform = esp-3des esp-sha-hmac (Tunnel),

lifedur = 3600 s and KB 4608000,

SPI = 0 x 0 (0), id_conn = 0, keysize = 0, flags = 0 x 0

Apr 24 16:42:42: IPSEC (key_engine): request timer shot: count = 2,.

local (identity) = 209.213.xx.46, distance = 209.213.xx.164,

local_proxy = 0.0.0.0/0.0.0.0/0/0 (type = 4),

remote_proxy = 0.0.0.0/0.0.0.0/0/0 (type = 4)

Apr 24 16:42:42: % LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel1, sta changed

you all the downu

All possible debugging has been disabled

I would try to set up a VPN Interface virtual Tunnel on the IOS router base and the value of defined transformation in tunnel mode no transport.

In history, I have had several issues with VPN between a router IOS and the series RV.

Traffic is failed on plain IPSec tunnel between two 892 s

Have a weird case and you are looking for some suggestions/thougs where to dig because I have exhausted the options.

Note: I replaced the Networkid real to a mentined below.

Topology: a classic IPSec VPN tunnel between two 892 s of Cisco, with pre-shared key and no GRE. A 892 (branch_892) has access to the Internet using PPPoE and has three network / VLAN behind it. A VLAN is coordinated to the PPPoE internet access. Access to the other two VLAN - VL92 (100.100.200.0/24) and VL93 (100.100.100.0/24) is performed via the VPN tunnel.

Second 892 (892_DC) has just one interface - WAN on Gigabit enabled/connected and a static route to the default GW. It doesn't have any defined interal network. If the router is strictly used to send traffic to VL92/VL93 to the domestic 892 via IPSec tunnel.

Here's the problem: access to VL93 (100.100.100.0/24) works, however for VL92 (100.100.100.0/24) - does not work.

Devices in VL92 I ping IP address of 892_DC through the VPN tunnel. The 892_DC router I can ping devices in VL92. However, I can't VL92 ping any device beyond the 892_DC and at the same time the packets arriving on 892_DC for VL92 are not sent through the VPN tunnel.

I took the package trace on 892_DC using capture point/buffer to nathalie caron to VL92 packages and saw that the traffic coming to the 892_DC. I run the nathalie caron even on Branch_892, and there was not a single package.

So... What's the problem? More interesting, I modified the way left on VL92 access list and still - no packets are sent through the tunnel.

Any idea? Two routers config are below

-------

892_DC #show ru

!

crypto ISAKMP policy 10

BA aes 256

hash sha256

preshared authentication

Group 2

isakmp encryption key * address 1.2.3.4

ISAKMP crypto keepalive 10 periodicals

!

address of 1.2.3.4 crypto isakmp peers

Description of-COIL-892

!

!

Crypto ipsec transform-set IT-IPSec-Transform-Set esp - aes 256 sha256-esp-hmac

Crypto ipsec df - bit clear

!

map IT ipsec - IPSec crypto - Crypto - map 10-isakmp

defined peer 1.2.3.4

disable the kilobytes of life together - the security association

86400 seconds, life of security association set

the transform-set IT-IPSec-Transform-Set value

match a lists 101

market arriere-route

QoS before filing

!

interface GigabitEthernet0

IP 10,20,30,40 255.255.255.240

IP 1400 MTU

IP tcp adjust-mss 1360

automatic duplex

automatic speed

card crypto IT-IPSec-Crypto-map

!

IP route 0.0.0.0 0.0.0.0 10.20.30.41

!

access list 101 ip allow any 100.100.100.0 0.0.0.255 connect

access list 101 ip allow any 100.100.200.0 0.0.0.255 connect

-------------------------------------------------------------------------------------

Branch_892 #sh run

!

crypto ISAKMP policy 10

BA aes 256

hash sha256

preshared authentication

Group 2

isakmp encryption key * address 10,20,30,40

ISAKMP crypto keepalive 10 periodicals

!

address peer isakmp crypto 10,20,30,40

!

!

Crypto ipsec transform-set IT-IPSec-Transform-Set esp - aes 256 sha256-esp-hmac

Crypto ipsec df - bit clear

!

map IT ipsec - IPSec crypto - Crypto - map 10-isakmp

defined peer 10,20,30,40

disable the kilobytes of life together - the security association

86400 seconds, life of security association set

the transform-set IT-IPSec-Transform-Set value

match address 101

market arriere-route

QoS before filing

!

FastEthernet6 interface

Description VL92

switchport access vlan 92

!

interface FastEthernet7

Description VL93

switchport access vlan 93

!

interface GigabitEthernet0

Description # to WAN #.

no ip address

automatic duplex

automatic speed

PPPoE-client dial-pool-number 1

!

interface Vlan1

Description # local to #.

IP 192.168.1.254 255.255.255.0

IP nat inside

IP virtual-reassembly in

!

interface Vlan92

Description fa6-nexus e100/0/40

IP 100.100.200.1 255.255.255.0

!

interface Vlan93

Description fa7-nexus e100/0/38

IP 100.100.100.1 255.255.255.0

!

interface Dialer0

no ip address

No cdp enable

!

interface Dialer1

IP 1.2.3.4 255.255.255.248

IP mtu 1454

NAT outside IP

IP virtual-reassembly in max-pumping 256

encapsulation ppp

IP tcp adjust-mss 1414

Dialer pool 1

Dialer-Group 1

Authentication callin PPP chap Protocol

PPP chap hostname ~ ~ ~

PPP chap password =.

No cdp enable

card crypto IT-IPSec-Crypto-map

!

Dialer-list 1 ip protocol allow

!

access-list 101 permit ip 100.100.100.0 0.0.0.255 any

access-list 101 permit ip 100.100.200.0 0.0.0.255 any

!

IP route 0.0.0.0 0.0.0.0 Dialer1

Yes correct sounds - so another possible problem is the routing is routing 100% correct on both sides? Can you put the two sides config for review?

IPSec tunnel between a client connection mobility and WRV200

Someone has set up an IPSec tunnel between a client connection mobility and WRV200? I can't get the right configuration.

Agitation, these products are treated by the Cisco Small Business support community. Please refer to the URL: https://supportforums.cisco.com/community/netpro/small-business

IPSec Tunnel between Cisco 2801 and Netscren 50 with NAT and static

Hello

My problem isn't really the IPSec connection between two devices (it is already done...) But my problem is that I have a mail server on the site of Cisco, who have a static NAT from inside to outside. Due to the static NAT, I do not see the server in the VPN tunnel. I found a document that almost describes the problem:

"Configuration of a router IPSEC Tunnel private-to-private network with NAT and static" (Document ID 14144)

NAT takes place before the encryption verification!

In this document, the solution is 'routing policy' using the loopback interface. But, how can I handle this with the Netscreen firewall. Someone has an idea?

Thanks for any help

Best regards

Heiko

Hello

Try to change your static NAT with static NAT based policy.

That is to say the static NAT should not be applicable for VPN traffic

permissible static route map 1

corresponds to the IP 104

access-list 104 refuse host ip 10.1.110.10 10.1.0.0 255.255.0.0

access-list 104 allow the host ip 10.1.110.10 all

IP nat inside source static 10.1.110.10 81.222.33.90 map of static route

HTH

Kind regards

GE.

IPSEC tunnels does not connect

Out of sudden IPSEC tunnel on remote site 202.68.211.20 is not plug in. Previously is OK. There is no change in config.

IKE Phase 1 even not connect.

I'm debugging, but I don't know what could be the error.

-----------------------------------------------------------------------------

= ~ = ~ = ~ = ~ = ~ = ~ = ~ = ~ = ~ = ~ = ~ = PuTTY connect 2016.05.12 15:19:36 = ~ = ~ = ~ = ~ = ~ = ~ = ~ = ~ = ~ = ~ = ~ =.
12 May 12:06:50 [IKEv1 DEBUG]: pitcher: a message key acquisition, spi 0 x 0
12 May 12:06:50 [IKEv1]: IP = 202.68.211.20, Queuing KEY-ACQUIRE messages are treated when SA P1 is finished.
12 May 12:06:53 [IKEv1 DEBUG]: pitcher: a message key acquisition, spi 0 x 0
12 May 12:06:53 [IKEv1]: IP = 202.68.211.20, Queuing KEY-ACQUIRE messages are treated when SA P1 is finished.
12 May 12:06:54 [IKEv1 DEBUG]: IP = 202.68.211.20, case of mistaken IKE MM Initiator WSF (struct & 0xd84aff40) , : MM_DONE, EV_ERROR--> MM_WAIT_MSG2, EV_RETRY--> MM_WAIT_MSG2, EV_TIMEOUT--> MM_WAIT_MSG2 NullEvent--> MM_SND_MSG1, EV_SND_MSG--> MM_SND_MSG1, EV_START_TMR--> MM_SND_MSG1, EV_RESEND_MSG--> MM_WAIT_MSG2, EV_RETRY
12 May 12:06:54 [IKEv1 DEBUG]: IP = 202.68.211.20, IKE SA MM:914f04ce ending: flags 0 x 01000022, refcnt 0, tuncnt 0
12 May 12:06:54 [IKEv1 DEBUG]: IP = 202.68.211.20, sending clear/delete with the message of reason
12 May 12:06:59 [IKEv1 DEBUG]: pitcher: a message key acquisition, spi 0 x 0
12 May 12:06:59 [IKEv1]: IP = 202.68.211.20, initiator of IKE: New Phase 1, Intf internal, IKE Peer 202.68.211.20 address proxy local 10.215.20.0 address remote Proxy 10.210.0.0, Card Crypto (VPN_map)
12 May 12:06:59 [IKEv1 DEBUG]: IP = 202.68.211.20, build the payloads of ISAKMP security
12 May 12:06:59 [IKEv1 DEBUG]: IP = 202.68.211.20, construction of Fragmentation VID + load useful functionality
12 May 12:06:59 [IKEv1]: IP = 202.68.211.20, IKE_DECODE SEND Message (msgid = 0) with payloads: HDR + HER (1), SELLER (13) + (0) NONE total length: 112
12 May 12:07 [IKEv1 DEBUG]: pitcher: a message key acquisition, spi 0 x 0
12 May 12:07 [IKEv1]: IP = 202.68.211.20, Queuing KEY-ACQUIRE messages are treated when SA P1 is finished.
12 May 12:07:03 [IKEv1 DEBUG]: pitcher: a message key acquisition, spi 0 x 0
12 May 12:07:03 [IKEv1]: IP = 202.68.211.20, Queuing KEY-ACQUIRE messages are treated when SA P1 is finished.
12 May 12:07:07 [IKEv1]: IP = 202.68.211.20, IKE_DECODE new SEND Message (msgid = 0) with payloads: HDR + HER (1), SELLER (13) + (0) NONE total length: 112
12 May 12:07:09 [IKEv1 DEBUG]: pitcher: a message key acquisition, spi 0 x 0
12 May 12:07:09 [IKEv1]: IP = 202.68.211.20, Queuing KEY-ACQUIRE messages are treated when SA P1 is finished.
12 May 12:07:15 [IKEv1]: IP = 202.68.211.20, IKE_DECODE new SEND Message (msgid = 0) with payloads: HDR + HER (1), SELLER (13) + (0) NONE total length: 112
12 May 12:07:23 [IKEv1]: IP = 202.68.211.20, IKE_DECODE new SEND Message (msgid = 0) with payloads: HDR + HER (1), SELLER (13) + (0) NONE total length: 112
12 May 12:07:31 [IKEv1 DEBUG]: IP = 202.68.211.20, case of mistaken IKE MM Initiator WSF (struct & 0xd8457958) , : MM_DONE, EV_ERROR--> MM_WAIT_MSG2, EV_RETRY--> MM_WAIT_MSG2, EV_TIMEOUT--> MM_WAIT_MSG2 NullEvent--> MM_SND_MSG1, EV_SND_MSG--> MM_SND_MSG1, EV_START_TMR--> MM_SND_MSG1, EV_RESEND_MSG--> MM_WAIT_MSG2, EV_RETRY
12 May 12:07:31 [IKEv1 DEBUG]: IP = 202.68.211.20, IKE SA MM:be63ea64 ending: flags 0 x 01000022, refcnt 0, tuncnt 0
12 May 12:07:31 [IKEv1 DEBUG]: IP = 202.68.211.20, sending clear/delete with the message of reason
12 May 12:07:37 [IKEv1 DEBUG]: pitcher: a message key acquisition, spi 0 x 0
12 May 12:07:37 [IKEv1]: IP = 202.68.211.20, initiator of IKE: New Phase 1, Intf internal, IKE Peer 202.68.211.20 address proxy local 10.215.20.0 address remote Proxy 10.210.0.0, Card Crypto (VPN_map)
12 May 12:07:37 [IKEv1 DEBUG]: IP = 202.68.211.20, build the payloads of ISAKMP security
12 May 12:07:37 [IKEv1 DEBUG]: IP = 202.68.211.20, construction of Fragmentation VID + load useful functionality
12 May 12:07:37 [IKEv1]: IP = 202.68.211.20, IKE_DECODE SEND Message (msgid = 0) with payloads: HDR + HER (1), SELLER (13) + (0) NONE total length: 112
12 May 12:07:40 [IKEv1 DEBUG]: pitcher: a message key acquisition, spi 0 x 0
12 May 12:07:40 [IKEv1]: IP = 202.68.211.20, Queuing KEY-ACQUIRE messages are treated when SA P1 is finished.
12 May 12:07:45 [IKEv1]: IP = 202.68.211.20, IKE_DECODE new SEND Message (msgid = 0) with payloads: HDR + HER (1), SELLER (13) + (0) NONE total length: 112
12 May 12:07:46 [IKEv1 DEBUG]: pitcher: a message key acquisition, spi 0 x 0
12 May 12:07:46 [IKEv1]: IP = 202.68.211.20, Queuing KEY-ACQUIRE messages are treated when SA P1 is finished.
12 May 12:07:53 [IKEv1]: IP = 202.68.211.20, IKE_DECODE new SEND Message (msgid = 0) with payloads: HDR + HER (1), SELLER (13) + (0) NONE total length: 112
q

Hello

It seems that the tunnel is blocked to MSG_2.

You can check if the UDP 500 traffic is not blocked between peers?

Please check with your provider.

Kind regards

Aditya

Please evaluate the useful messages and mark the correct answers.

How to troubleshoot an IPSec tunnel GRE?

Hello

My topology includes two firewalls connected through the Internet "" (router) and behind each firewall, there is a router.

The routers I configured a GRE tunnel that is successful, then I configured an IPsec tunnel on the firewall.

I does not change the mode to transport mode in the transform-set configuration.

Everything works; If I connect a PC to the router, it can ping another PC on the other router. However if I change mode of transport mode that they cannot.

I was wondering how can I ensure that the IPSec tunnel WILL really works? How can I fix it or package tracking?

Thank you.

I was wondering how can I ensure that the IPSec tunnel WILL really works? How can I fix it or package tracking?

To verify that the VPN tunnel works well, check the output of
ISAKMP crypto to show his
Crypto ipsec to show his

Here are the commands of debug
Debug condition crypto x.x.x.x, where x.x.x.x IP = peer peer
Debug crypto isakmp 200
Debug crypto ipsec 200

You will see ACTIVE int the first output and program non-zero and decaps on the output of the latter.

For the GRE tunnel.
check the condition of the tunnel via "int ip see the brief.

In addition, you can configure keepalive via the command:

Router # configure terminal
Router (config) #interface tunnel0
Router(Config-if) 5 4 #keepalive

and then run "debug keepalive tunnel" to see packets hello tunnel going and coming from the router.

Kind regards
Dinesh Moudgil

PS Please rate helpful messages.

RV180 dhcp via IPSEC Tunnel

Hello

I have set up an ipsec tunnel between rv180 (site A) and asa5520 (site B) successful. The dhcp server to clients is on the B site. The dhcp clients request going through the tunnel, they leave the rv180 on the wan interface and arrive at site B with the wan-ipaddress from site A. The configured dhcp-relay on the website match the remote network (site B), configured in the on site A ipsec tunnel. Is there anyway that all traffic pass through the ipsec tunnel? We want it for security reasons.

Any help is greatly appreciated.

Ralf

Dear Ralf,

Thank you to reach small business support community.

Unfortunately the relay DHCP Relay not of DHCP request to the IPSec VPN tunnel. I hope that this answer to your question and do not hesitate to contact me if there is any additional help with what I can help you.

Kind regards

Jeffrey Rodriguez S... : | :. : | :.
Support Engineer Cisco client

* Please rate the Post so other will know when an answer has been found.

Outgoing PAT to the IPSec Tunnel

Hello

Situation is with range of IP private tunnel of 3rd party who already uses the same private beach, but not with any of the hosts that we need to connect to. All traffic from the office to the 3rd party must be secure.

We want to configure an IPSec tunnel between the two sites (easy) and then use PAT on the PIX Office (6.3 (5)) to make all traffic office appear to be a single private address different.

We tried to do with PDM, but it insists on having no NAT (with an exclusionary rule), or static NAT, but does not seem to allow Pat.

I have attached a copy sanitized the office configuration. Any standard room in PIX have been removed for brevity

I would like constructive guidance on where I'm wrong.

See you soon

Hello

The PIX / ASA will make the NAT translation on the steps below. First, it will check if no no (order No. - nat) nat is configured, then it will check the static nat translation and finally, it will check the translation PAT.

In your configuration, there is a NAT (0) command indicating not to translate any IP of 192.168.0.0 to the remote ip address range, then the PIX won't do the translation and the package is passed to the destination.

Remove the NAT (0) command and edit list access outside_cryptomap_10 with the ip dried up to the remote ip address for this access list is responsible for interesting traffic that needs to be encrypted.

pls control and dream of return.

Policy Nat and IPSec tunnel

Hello

I have a Cisco IOS router and you want to configure an IPSec tunnel between myself and the client. Unfortunately, we have two overlapping of 10 network IP addresses.

Is it possible for me to just Nat addresses IP on my side or should the customer Nat as well?

I have configured NAT on the inside of the interface for 10.134.206.1 to 192.168.156.6 so that Nat happens before that packages are encrypted in the tunnel, however tunnel is not coming. The client uses a sonic firewall and allowed their 10.91.0.0/16 network 192.168.156.0/24.

See attachment

Kind regards

They are wrong to installation. Remote local networks are not 10.134.206.0 and 10.134.206/42. It is simply your public IP address.

IPSec tunnel is disabled

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