Road by default from version 6.3 PIX IPsec tunnel
We have a PIX 501 running IOS version 6.3.1.
There are currently 3 tunnels IPsec active as described below.
What we would like is to have all traffic by default (0.0.0.0 0.0.0.0) range out through the tunnel of the middle line so that traffic can be protected by a firewall on the other side of the tunnel. Since ICF is a Sonicwall what would be needed to be changed in the configuration on the PIX to get there?
Thank you
6.3 (1) version PIX
interface ethernet0 10baset
interface ethernet1 100full
ethernet0 nameif outside security0
nameif ethernet1 inside the security100
activate the 86AZXXmRLxfv/oUQ encrypted password
86AZXXmRLxfv/oUQ encrypted passwd
Site A hostname
domain default.int
clock timezone STD - 7
fixup protocol dns-length maximum 512
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol they 389
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol 2000 skinny
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
names of
name 75.75.75.2 CovadHub
name 75.48.25.12 Sonicwall
access-list 101 permit ip 10.10.5.0 255.255.255.0 10.10.1.0 255.255.255.0
access-list 101 permit ip 10.10.5.0 255.255.255.0 10.10.2.0 255.255.255.0
access-list 101 permit ip 10.10.5.0 255.255.255.0 10.10.3.0 255.255.255.0
access-list 101 permit icmp any any echo response
access-list 101 permit icmp any any echo
access-list 102 permit ip 10.10.5.0 255.255.255.0 10.10.2.0 255.255.255.0
access-list 103 allow ip 10.10.5.0 255.255.255.0 10.10.1.0 255.255.255.0
access-list 104. allow ip 10.10.5.0 255.255.255.0 10.10.3.0 255.255.255.0
pager lines 24
opening of session
monitor debug logging
logging warnings put in buffered memory
ICMP allow 10.10.5.0 255.255.255.0 inside
Outside 1500 MTU
Within 1500 MTU
external IP 75.25.14.2 255.255.255.0
IP address inside 10.10.5.1 255.255.255.0
alarm action IP verification of information
alarm action attack IP audit
location of PDM 10.10.5.0 255.255.255.0 inside
PDM logging 100 information
history of PDM activate
ARP timeout 14400
Global 1 interface (outside)
(Inside) NAT 0-list of access 101
NAT (inside) 1 0.0.0.0 0.0.0.0 0 0
allow icmp a conduit
Route outside 0.0.0.0 0.0.0.0 75.25.14.1 1
Timeout xlate 0:05:00
Timeout conn 01:00 half-closed 0:10:00 udp 0: CPP 02:00 0:10:00 01:00 h225
H323 timeout 0:05:00 mgcp 0: sip from 05:00 0:30:00 sip_media 0:02:00
Timeout, uauth 0:05:00 absolute
GANYMEDE + Protocol Ganymede + AAA-server
RADIUS Protocol RADIUS AAA server
AAA-server local LOCAL Protocol
NTP server 132.163.4.102 source outdoors
NTP server 129.7.1.66 source outdoors
Enable http server
http 10.10.1.0 255.255.255.0 inside
http 10.10.5.0 255.255.255.0 inside
No snmp server location
No snmp Server contact
SNMP-Server Community public
No trap to activate snmp Server
enable floodguard
Permitted connection ipsec sysopt
Crypto ipsec transform-set esp - esp-md5-hmac pix11
peer11 card crypto ipsec-isakmp 10
correspondence address 10 card crypto peer11 102
peer11 card crypto 10 peers set 75.95.21.41
peer11 card crypto 10 set transform-set pix11
11 peer11 of ipsec-isakmp crypto map
correspondence address 11 card crypto peer11 103
11 peer11 peer Sonicwall crypto card game
card crypto peer11 11 set transform-set pix11
12 peer11 of ipsec-isakmp crypto map
correspondence address 12 card crypto peer11 104
card crypto peer11 12 set peer 75.62.58.28
card crypto peer11 12 set transform-set pix11
peer11 interface card crypto outside
ISAKMP allows outside
ISAKMP key * address 75.62.58.28 netmask 255.255.255.240
ISAKMP key * address netmask 255.255.255.224 Sonicwall
ISAKMP key * address 75.95.21.41 netmask 255.255.255.252
ISAKMP identity address
ISAKMP keepalive 10
ISAKMP nat-traversal 20
part of pre authentication ISAKMP policy 10
encryption of ISAKMP policy 10
ISAKMP policy 10 md5 hash
10 2 ISAKMP policy group
ISAKMP life duration strategy 10 86400
part of pre authentication ISAKMP policy 11
encryption of ISAKMP policy 11
ISAKMP policy 11 md5 hash
11 2 ISAKMP policy group
ISAKMP duration strategy of life 11 28800
part of pre authentication ISAKMP policy 12
encryption of ISAKMP policy 12
ISAKMP policy 12 md5 hash
12 2 ISAKMP policy group
ISAKMP duration strategy of life 12 36000
Telnet 10.10.5.0 255.255.255.0 inside
Telnet 0.0.0.0 0.0.0.0 inside
Telnet timeout 5
SSH 0.0.0.0 0.0.0.0 outdoors
SSH 0.0.0.0 0.0.0.0 inside
SSH timeout 60
Console timeout 0
dhcpd address 10.10.5.70 - 10.10.5.101 inside
dhcpd dns 10.10.1.214
dhcpd rental 43200
dhcpd ping_timeout 750
dhcpd field default.int
dhcpd outside auto_config
dhcpd allow inside
Terminal width 80
Cryptochecksum:36d2c26afa8
03957d 3659
868d9219f8
2
: end
Hello
You do not configure really any type of default route for the VPN L2L. You match rather traffic with 'everything' destination on configuring VPN L2L. Basically you would like to configure the VPN L2L ACL encryption with the 'whole' destination map
I guess in your case it would be the ACL named "103".
access-list 103 allow ip 10.10.5.0 255.255.255.0 any
IP 10.10.5.0 doesn't allow any access list 103 255.255.255.0 10.10.1.0 255.255.255.0
Naturally, your NAT0 ACL configuration should also reflect this change. I guess the end remote Sonicwall'd private NAT to public Internet access in this case whereas. I guess that in this case, the ACL NAT0 might even be just this one rule ACL
access-list 101 permit ip 10.10.5.0 255.255.255.0 any
BUT what I was asking however for now mainly is the fact it has a priority of '11' in the 'crypto map' which has between 2 other L2L VPN connections.
peer11 card crypto ipsec-isakmp 10
correspondence address 10 card crypto peer11 102
peer11 card crypto 10 peers set 75.95.21.41
peer11 card crypto 10 set transform-set pix11
11 peer11 of ipsec-isakmp crypto map
correspondence address 11 card crypto peer11 103
11 peer11 peer Sonicwall crypto card game
card crypto peer11 11 set transform-set pix11
12 peer11 of ipsec-isakmp crypto map
correspondence address 12 card crypto peer11 104
card crypto peer11 12 set peer 75.62.58.28
card crypto peer11 12 set transform-set pix11
If you have changed the destination address of '103' crypto VPN L2L ACL at "" I guess that would probably cause so that the last connection VPN L2L with "12" priority may stop working since the previous connection already corresponds to 'all' your network 'inside' destination address.
The solution might be to delete the current configuration of the '11' priority and add it with '13' for example, so that the other 2 connections VPN L2L could continue to work and all the rest of the traffic would be passed to the connection VPN L2L with Sonicwall as the remote peer.
No crypto map ipsec-isakmp 11 peer11
no correspondence address 11 card crypto peer11 103
no set of 11 peer11 card crypto don't peer Sonicwall
No peer11 11 set transform-set pix11 crypto card
13 peer11 of ipsec-isakmp crypto map
correspondence address 13 card crypto peer11 103
13 card crypto peer Sonicwall peer11 game
card crypto peer11 13 pix11 transform-set game
I have to say that this is how I expect it should work. I worked with VPN L2L that have been configured in this way but its quite rare.
If you want to try something like that, of course, be ready to return to the old configuration with your admins of the remote peer, if things do not work. I guess more difficult configurations changes must be made on the remote end while your configuration of the ends should be fairly simple.
Hope this helps
-Jouni
Tags: Cisco Security
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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-proposaloutside_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) 0xa75f0671SH run | I have access-group
Access-group outside_access_out outside interfaceNOTE:
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: 21 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_ACTIVESH 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 86400SH run | I Dynamics
NAT interface dynamic obj - 0.0.0.0 source (indoor, outdoor)
NAT source auto after (indoor, outdoor) dynamic one interfaceNOTE:
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 msDetermination 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.XXXoutside_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: 0local 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: 06821CBBSAS 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_statInformation 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_statResult:
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-
Jon
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