Permit for site to Site VPN - display Ports
Hello
I have HQ(Site A) ASA5505 configuration with two VPN Tunnels established to the remote sites (Site B and) C Site. Everything works very well. I am able to ping on each subnet devices (from Site A to Site B and Site C and vice versa) successfully; However, cann't devices communicate with a server at Headquarters (Site A) and I wanted to make sure that the ports are open in the Tunnels. How to accomplish this?
Much appreciated!
Best, ~ sK
Hello
There are many things that decide what traffic is transferred to the L2L VPN connections and what is allowed through the actual firewalls.
First of all, you naturally want to confirm that the host which need to communicate is really configured on the VPN L2L configurations. In the ACL, which defines the traffic.
If this mentioned that ACL is very though then you will probably want to take a look at the NAT configuration are ok. You use NAT0 to all traffic on all of these VPN L2L connections?
Then, you naturally want to confirm that host generate connections that are allowed to form the connection via the 'inside' ACL on the ASA local interface.
Then theres a "sysopt connection permit-vpn. This configuration command controls the adjustment if connections through VPN connections are allowed to ignore the 'outer' interface ACL. The default setting for ASA, is that all connections from VPN connection are automatically bypassing the 'outside' the ACL interface (or rather the ACL of the interface when the VPN was interrupted on the SAA, although its 99% of the time 'outside')
To check the State of the above mentioned questioning the command 'show sysopt run '. If you do not see what is the "vpn" in the output, then you will know the setting is in its default value and therefore is not block connections. If there is "no sysopt connection permit-vpn" means that you need to allow all necessary traffic while the 'outer' interface ACL.
To check if certain traffic gets correctly transmitted to the VPN L2L at his LOCAL ASA then you can use the command "packet - trace.
Format would be
- Assuming the traffic is initiated by behind the interface 'inside '.
entrance to Packet-trace inside tcp
This example displays a message about long'ish on the CLI that will tell all the audit which are made to the traffic that you are trying to simulate. It will also inform your NAT and ACLs rules is corresponding to the movement. He will also mention if traffic is transferred to a VPN connection.
Natutally firewall logs is a great tool to determine where the traffic stops (checking all the ASAs related to the connection attempt). The ASDM GUI (monitor section) is ideal for this purpose.
Also if you want to go even deeper, you can capture packets from the firewall to the ASA. But since in this case we are talking about VPN/encrypted traffic you can only take the capture on the interface of 'inside' interface input/output traffic is not encrypted.
I do not think that the ASA provides a tool to tell you what traffic is allowed through the L2L VPN connection. You can use combined the above to determine that. Of course, you might be able to run a program on a host behind the ASA to scan open ports.
I hope that some of this information will help you understand what is wrong.
Of course, ask if you need more information about something that I mentioned above. If you take the exit "packet - trace" of some of the ASAs, you can share the result here for us to look through.
EDIT: typos
Edit2: Even the strangest faults strike. I'm too tired.
-Jouni
Tags: Cisco Security
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LICENCE, flags is {origin_is_acl},
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Interface: virtual Network1
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LICENCE, flags is {origin_is_acl},
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SPI: 0 x 39135054 (957567060)
transform: esp-3des esp-sha-hmac.
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calendar of his: service life remaining (k/s) key: (4505068/1306)
Size IV: 8 bytes
support for replay detection: Y
Status: ACTIVEthe arrival ah sas:
SAS of the CFP on arrival:
outgoing esp sas:
SPI: 0xB2E9E500 (3001672960)
transform: esp-3des esp-sha-hmac.
running parameters = {Tunnel}
Conn ID: 2004, flow_id: FPGA:4, sibling_flags 80000046, card crypto: SDM_CMAP_1
calendar of his: service life remaining (k/s) key: (4505118/1306)
Size IV: 8 bytes
support for replay detection: Y
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outgoing CFP sas:
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interface FastEthernet0/1
Description $ETH - LAN$ $FW_INSIDE$
IP 172.20.2.254 255.255.255.0
IP access-group 100 to
IP nat inside
IP virtual-reassembly
IP tcp adjust-mss 1412
automatic duplex
automatic speed
!
ATM0/0/0 interface
no ip address
No atm ilmi-keepalive
!
point-to-point interface ATM0/0/0.1
PVC 1/32
PPPoE-client dial-pool-number 1
!
!
interface Dialer1
Description $FW_OUTSIDE$
the negotiated IP address
IP mtu 1452
NAT outside IP
IP virtual-reassembly
encapsulation ppp
Dialer pool 1
Dialer-Group 2
PPP authentication chap callin pap
PPP chap hostname xxxxxxx
PPP chap password 7 xxxxxxx8
PPP pap sent-name of user password xxxxxxx xxxxxxx 7
map SDM_CMAP_1 crypto
!
IP forward-Protocol ND
IP http server
local IP http authentication
IP http secure server
!
!
The dns server IP
IP nat inside source static tcp 10.10.10.1 808 interface Dialer1 80
IP nat inside source static tcp 10.10.10.1 25 25 Dialer1 interface
IP nat inside source overload map route SDM_RMAP_1 interface Dialer1
IP nat inside source overload map route SDM_RMAP_2 interface Dialer1
IP route 0.0.0.0 0.0.0.0 Dialer1 permanent
!
logging trap notifications
Note category of access list 1 = 2 CCP_ACL
access-list 1 permit 172.20.2.0 0.0.0.255
Note access-list category 2 CCP_ACL = 2
access-list 2 allow 10.10.10.0 0.0.0.255
Note access-list 100 category CCP_ACL = 4
Note access-list 100 IPSec rule
access-list 100 permit ip 172.20.2.0 0.0.0.255 192.168.37.0 0.0.0.255
Note CCP_ACL the access list 101 = 2 category
Note access-list 101 IPSec rule
access-list 101 deny ip 172.20.2.0 0.0.0.255 192.168.37.0 0.0.0.255
access-list 101 permit ip 172.20.2.0 0.0.0.255 any
Note access-list 102 CCP_ACL category = 2
Note access-list 102 IPSec rule
access-list 102 deny ip 172.20.2.0 0.0.0.255 192.168.37.0 0.0.0.255
access-list 102 permit ip 10.10.10.0 0.0.0.255 any
!!
allowed SDM_RMAP_1 1 route map
corresponds to the IP 101
!
allowed SDM_RMAP_2 1 route map
corresponds to the IP 102
!
!
control plan
!
!
Line con 0
line to 0
line vty 0 4
length 0
transport input telnet ssh
!
Scheduler allocate 20000 1000
NTP-Calendar Update
NTP 172.20.2.250 Server prefer
endAs I mentioned previously: suspicion is much appreciated!
Best regards
Joerg
Joerg,
ASA receives not all VPN packages because IOS does not send anything.
Try to send packets to the 1841 LAN to LAN of the ASA and see is the "sh cry ips its" on the 1841 increments the encrypted packets (there not)
The problem seems so on the side of the router.
I think that is a routing problem, but you only have one default gateway (no other channels on the router).
The ACL 100 is set to encrypt the traffic between the two subnets.
It seems that the ACL 101 is also bypassing NAT for VPN traffic.
Follow these steps:
Try running traffic of LAN router inside IP (source of ping 192.168.37.x 172.20.2.254) and see if the packages are not through the translation and obtaining encrypted.
I would also like to delete 100 ACL from the inside interface on the router because it is used for the VPN. You can create an another ACL to apply to the interface.
Federico.
-
Site to site VPN with router IOS
I want to create a VPN site-to site on the Internet. On the remote site, aside from the VPN to the head office, there should be no traffic not allowed in internal from the Internet to the network and that there should be no traffic from the internal network to the Internet allowed. The internal network will run a private 192.168.x.x address range.
I'm going to use a Cisco 2811 router integrated of services on the remote site and this will last an IPSec VPN that will end a hub at Headquarters. I understand that this router has an IOS and IPS firewall built in.
Would I be right in thinking that because I don't want to have access to the Internet (except VPN) or should I configure IOS firewall features on the router? And there is no point in the configuration of the features IPS wouldn't?
My thought is that only an entry in list of unique access to deny pi a whole applied inbound to the interface that connects to the Internet would be the best strategy. I think that the command "sysopt connection permit-ipsec" should allow the VPN to form even with the ip address to deny any any ACL (or is it just a Pix command? If Yes, then I have to allow ESP and UDP 500 (ISAKMP) from the public address of the hub at Headquarters to allow the VPN to form wouldn't I?).
Think I'll probably expand slightly the access list to allow the icmp Protocol, ssh and https traffic from the IP address of firewall seat outside so that I can monitor the remote site and access it safely if the fail VPN.
And I wouldn't need one access list on the interface connected to the internal network I would like because the range of addresses would be not routable, so they would not be able to initiate connections to the Internet (all the trffic to the remote site is specified under a valuable traffic to bring up the VPN)
Use one of the IOS Firewall inspect commands or the IPS would be useless and have no effect in this case wouldn't it?
I really just need to know if the ip address to deny any any ACL on the external interface on the remote site is the best solution (and the simplest), and whether it will be safe.
We used to use fiewalls Pix for remote VPN site to site, Amazon refuse incoming connections on the external interface by default but now I have been informed that these series 2800 routers will be used later, so I would get my thoughts straight and be able to build safe to do the same work all existing PIX are doing (they are all installed for just the VPN at Headquarters as in) the first paragraph).
I would like any advice or thoughts on the subject. I don't know there must be a ton of people who put routers for the same purpose.
Thank you in advance.
Pete.
Pete
I did a lot of implementations site VPN to another using IOS routers. They work very well. Based on my experience I offer these comments and I hope that they will help you:
-you don't want a list of incoming access on the external interface, but you want more in it than simply refuse an ip. There is no permit-ipsec sysopt connection in IOS so you want to certainly allowed ISAKMP and IPSec/ESP. I suggest that you also want to allow SSH. I would like to allow ICMP but only starting from the address space of the network head end. I do not allow HTTPS since I generally do not allow the http server on the router. If you want HTTPS then certainly enable it. To facilitate the ping and traceroute on the remote I frequently allow icmp echo-reply, timeout and unreachable port from any source.
-I want to put an inside interface access list. There are certain types of traffic that I don't want to send from the Remote LAN. I have usually refuse any trap SNMP or snmp for LAN devices and refuse out of the local network icmp redirects. I also often configure RPF controls inside interface to catch any device which is misconfigured.
-If you want to allow SSH when the VPN is not active (and I highly recommend that you do) then you will probably need to configure at least 1 (and maybe more) users and password of the router ID. And you want to configure authentication on the vty use local authentication if the head end authentication server is not available.
-I'm not clear from your description if you plan to run a dynamic routing via the VPN Protocol. I wish I had a dynamic routing protocol because I want to announce a default route to the remote control via the VPN. I do not locally configure a default route on the remote router. This way if the VPN tunnel is up there is a default route pointing to the tunnel and if the VPN tunnel is not up then there is no local route by default and users on the remote database can not access the Internet. It is a simple and very effective method to ensure that all user traffic must pass through the central site.
-regarding the routes defined on the remote router, my approach is that I define a static route for the endpoint of the tunnel to allow the tunnel to implement and I set up static routes for the subnet to the head of line I can SSH. And I do not configure other static routes the on the remote router.
-You probably want to disable cdp on the external interface and also to disable the proxy-arp (and I don't make any ip unreachable).
-There is frequently a problem when using VPN site-to-site with fragmentation. If a device on the local network sends a frame of maximum size, and then the router needs to add additional headers for IPSec, then the frame is too large and requires fragmentation. I like to use tcp adjust-mss ip to control the chunk size for TCP traffic and avoid any problems with fragmentation.
-I don't think you want to set up the firewall or IPS from the features of IOS on the 2811.
I hope that your application is fine and that my suggestions could be useful.
[edit] after posting my response, I read through your post again and realize that you make to a VPN concentrator. The approach I have proposed on the execution of a routing protocol works for me because I usually have a router IOS in mind. It would not work to connect to a hub.
HTH
Rick
-
Site to Site VPN configuration does not
Hello
I just tried to set up a test site to site VPN. Diagram of arrangement is attached. Router R2 is supposed to act as the 'Internet' to allow connectivity between the two networks.
My VPN on ASA1 and ASA2 configs are below:
ASA1
Note to outside_cryptomap_1 to access list VPN traffic to encrypt
outside_cryptomap_1 to access extended list ip 10.10.10.0 allow 255.255.255.0 172.16.10.0 255.225.255.0Crypto ikev1 allow outside
IKEv1 crypto policy 1
preshared authentication
aes-256 encryption
sha hash
Group 5
life 86400tunnel-group 11.11.11.2 type ipsec-l2l
IPSec-attributes tunnel-Group 11.11.11.2
Cisco pre-shared key IKEv1Crypto ipsec transform-set ikev1 AES - SHA esp-aes-256 esp-sha-hmac
card crypto outside_map 1 match address outside_cryptomap_1
peer set card crypto outside_map 1 11.11.11.2
card crypto outside_map 1 set of transformation-AES-SHA
outside_map interface card crypto outsideASA2
Note to outside_cryptomap_1 to access list VPN traffic to encrypt
permit access list extended ip 172.16.10.0 outside_cryptomap_1 255.255.255.0 10.10.10.0 255.225.255.0Crypto ikev1 allow outside
IKEv1 crypto policy 1
preshared authentication
aes-256 encryption
sha hash
Group 5
life 86400tunnel-group 12.12.12.2 type ipsec-l2l
IPSec-attributes tunnel-group 12.12.12.2
Cisco pre-shared key IKEv1Crypto ipsec transform-set ikev1 AES - SHA esp-aes-256 esp-sha-hmac
card crypto outside_map 1 match address outside_cryptomap_1
peer set card crypto outside_map 1 12.12.12.2
card crypto outside_map 1 set of transformation-AES-SHA
outside_map interface card crypto outsideI can ping with the ASA2 ASA1, but when I try to test the VPN trying from one PC to another, I get nothing.
I tried a few commands show and they came out absolutely empty... as I have not configured:
SH in detail its crypto isakmp
There are no SAs IKEv1
There are no SAs IKEv2
SH crypto ipsec his
There is no ipsec security associations
Anyone have any ideas?
Hi martin,
Your configs are quite right. I tried your script, its works really well. Here's the configs & outputs.
What I mentioned in the previous note follow this.--------------------
ASA1
ASA1 (config) # sh run
: Saved
:
ASA Version 8.0 (2)
!
hostname ASA1
activate 8Ry2YjIyt7RRXU24 encrypted password
names of
!
interface Ethernet0/0
nameif outside
security-level 0
IP 12.12.12.2 255.255.255.0
!
interface Ethernet0/1
nameif inside
security-level 100
10.10.10.2 IP address 255.255.255.0
!
interface Ethernet0/2
Shutdown
No nameif
no level of security
no ip address
!
interface Ethernet0/3
Shutdown
No nameif
no level of security
no ip address
!
interface Ethernet0/4
Shutdown
No nameif
no level of security
no ip address
!
interface Ethernet0/4
Shutdown
No nameif
no level of security
no ip address
!
interface Ethernet0/5
Shutdown
No nameif
no level of security
no ip address
!
2KFQnbNIdI.2KYOU encrypted passwd
passive FTP mode
extended vpn 10.10.10.0 ip access list allow 255.255.255.0 172.16.10.0 255.255.255.0
pager lines 24
Within 1500 MTU
Outside 1500 MTU
no failover
ICMP unreachable rate-limit 1 burst-size 1
don't allow no asdm history
ARP timeout 14400
Route outside 0.0.0.0 0.0.0.0 12.12.12.1 1
Timeout xlate 03:00
Timeout conn 01:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
Sunrpc timeout 0:10:00 h323 0:05:00 h225 mgcp from 01:00 0:05:00 mgcp-pat 0:05:00
Sip timeout 0:30:00 sip_media 0:02:00 prompt Protocol sip-0: 03:00 sip - disconnect 0:02:00
Timeout, uauth 0:05:00 absolute
dynamic-access-policy-registration DfltAccessPolicy
No snmp server location
No snmp Server contact
Server enable SNMP traps snmp authentication linkup, linkdown cold start
Crypto ipsec transform-set esp-3des esp-sha-hmac tset
card crypto cmap 1 match for vpn
card crypto cmap 1 set peer 11.11.11.2
card crypto cmap 1 transform-set tset
cmap outside crypto map interface
crypto ISAKMP allow outside
crypto ISAKMP policy 1
preshared authentication
3des encryption
md5 hash
Group 5
life 86400
crypto ISAKMP policy 65535
preshared authentication
3des encryption
sha hash
Group 2
life 86400
Telnet timeout 5
SSH timeout 5
Console timeout 0
a basic threat threat detection
Statistics-list of access threat detection
!
!
tunnel-group 11.11.11.2 type ipsec-l2l
IPSec-attributes tunnel-Group 11.11.11.2
pre-shared-key *.
context of prompt hostname
Cryptochecksum:00000000000000000000000000000000
: end
ASA1 (config) #.
---------------------ASA2 (config) # sh run
: Saved
:
ASA Version 8.0 (2)
!
hostname ASA2
activate 8Ry2YjIyt7RRXU24 encrypted password
names of
!
interface Ethernet0/0
nameif outside
security-level 0
IP 11.11.11.2 255.255.255.0
!
interface Ethernet0/1
nameif inside
security-level 100
IP 172.16.10.2 255.255.255.0
!
interface Ethernet0/2
Shutdown
No nameif
no level of security
no ip address
!
interface Ethernet0/3
Shutdown
No nameif
no level of security
no ip address
!
interface Ethernet0/4
Shutdown
No nameif
no level of security
no ip address
!
interface Ethernet0/5
Shutdown
No nameif
no level of security
no ip address
!
2KFQnbNIdI.2KYOU encrypted passwd
passive FTP mode
extended vpn 172.16.10.0 ip access list allow 255.255.255.0 10.10.10.0 255.255.255.0
pager lines 24
Outside 1500 MTU
Within 1500 MTU
no failover
ICMP unreachable rate-limit 1 burst-size 1
don't allow no asdm history
ARP timeout 14400
Route outside 0.0.0.0 0.0.0.0 11.11.11.1 1
Timeout xlate 03:00
Timeout conn 01:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
Sunrpc timeout 0:10:00 h323 0:05:00 h225 mgcp from 01:00 0:05:00 mgcp-pat 0:05:00
Sip timeout 0:30:00 sip_media 0:02:00 prompt Protocol sip-0: 03:00 sip - disconnect 0:02:00
Timeout, uauth 0:05:00 absolute
dynamic-access-policy-registration DfltAccessPolicy
No snmp server location
No snmp Server contact
Server enable SNMP traps snmp authentication linkup, linkdown cold start
Crypto ipsec transform-set esp-3des esp-sha-hmac tset
card crypto cmap 1 match for vpn
card crypto cmap 1 set peer 12.12.12.2
card crypto cmap 1 transform-set tset
cmap outside crypto map interface
crypto ISAKMP allow outside
crypto ISAKMP policy 1
preshared authentication
3des encryption
md5 hash
Group 5
life 86400
crypto ISAKMP policy 65535
preshared authentication
3des encryption
sha hash
Group 2
life 86400
Telnet timeout 5
SSH timeout 5
Console timeout 0
a basic threat threat detection
Statistics-list of access threat detection
!
!
!
tunnel-group 12.12.12.2 type ipsec-l2l
IPSec-attributes tunnel-group 12.12.12.2
pre-shared-key *.
context of prompt hostname
Cryptochecksum:00000000000000000000000000000000
: end
ASA2 (config) #.-------------------------
OUTPUTS:*********************
ASA1 (config) # sh crypto isakmp his
ITS enabled: 1
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: 11 peer IKE: 11.11.11.2
Type: L2L role: initiator
Generate a new key: no State: MM_ACTIVE---------------------
ASA1 (config) # sh crypto ipsec his
Interface: outside
Tag crypto map: cmap, seq num: 1, local addr: 12.12.12.2access vpn ip 10.10.10.0 list allow 255.255.255.0 172.16.10.0 255.255.255.0
local ident (addr, mask, prot, port): (10.10.10.0/255.255.255.0/0/0)
Remote ident (addr, mask, prot, port): (172.16.10.0/255.255.255.0/0/0)
current_peer: 11.11.11.2#pkts program: 50, #pkts encrypt: 50, #pkts digest: 50
#pkts decaps: 49, #pkts decrypt: 49, #pkts check: 49
compressed #pkts: 0, unzipped #pkts: 0
#pkts uncompressed: 50, comp #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
#send errors: 0, #recv errors: 0local crypto endpt. : 12.12.12.2, remote Start crypto. : 11.11.11.2
------------------------
ASA2 (config) # sh crypto isakmp hisITS enabled: 1
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: 11 peer IKE: 12.12.12.2
Type: L2L role: answering machine
Generate a new key: no State: MM_ACTIVE------------------------
ASA2 (config) # sh crypto ipsec his
Interface: outside
Tag crypto map: cmap, seq num: 1, local addr: 11.11.11.2access vpn ip 172.16.10.0 list allow 255.255.255.0 10.10.10.0 255.255.255.0
local ident (addr, mask, prot, port): (172.16.10.0/255.255.255.0/0/0)
Remote ident (addr, mask, prot, port): (10.10.10.0/255.255.255.0/0/0)
current_peer: 12.12.12.2#pkts program: 49, #pkts encrypt: 49, #pkts digest: 49
#pkts decaps: 50, #pkts decrypt: 50, #pkts check: 50
compressed #pkts: 0, unzipped #pkts: 0
#pkts uncompressed: 49, #pkts comp 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
#send errors: 0, #recv errors: 0local crypto endpt. : 11.11.11.2, remote Start crypto. : 12.12.12.2
------------------------- -
Site to Site VPN problem ASA 5505
Hello
I have a strange problem with a site to site VPN. I configured it completely and I added 3 of my internal networks to be encrypted and access the remote network across the tunnel.
For some reason, I can access the remote network of only two of the three internal networkls that I've specified.
Here is a copy of my config - if anyone has any info I would be happy of course.
Thank you
Kevin
FK - U host name. S. - Raleigh - ASA
domain appdrugs.com
activate 08PI8zPL2UE41XdH encrypted password
2KFQnbNIdI.2KYOU encrypted passwd
names of
name Maridian-primary-Net 192.168.237.0
Meridian-backup-Net 192.168.237.128 name
name 10.239.192.141 AccessSwitch1IDFB
name 10.239.192.143 AccessSwitch1IDFC
name 10.239.192.140 AccessSwitch1MDFA
name 10.239.192.142 AccessSwitch2IDFB
name CiscoCallManager 10.195.64.206
name 10.239.192.2 CoreSwitch1
name 10.239.192.3 CoreSwitch2
name 10.195.64.17 UnityVM
name 140.239.116.162 Outside_Interface
name 65.118.69.251 Meridian-primary-VPN
name 65.123.23.194 Meridian_Backup_VPN
DNS-guard
!
interface Ethernet0/0
Shutdown
No nameif
security-level 100
no ip address
!
interface Ethernet0/1
nameif outside
security-level 60
address IP Outside_Interface 255.255.255.224
!
interface Ethernet0/2
nameif Inside1
security-level 100
IP 10.239.192.7 255.255.255.128
!
interface Ethernet0/3
Shutdown
No nameif
no level of security
no ip address
!
interface Management0/0
nameif management
security-level 50
IP 192.168.1.1 255.255.255.0
management only
!
boot system Disk0: / asa804 - k8.bin
Disk0: / asa804.bin starting system
passive FTP mode
DNS domain-lookup outside
DNS domain-lookup Inside1
management of the DNS domain-lookup service
DNS server-group DefaultDNS
Server name 10.239.192.10
domain appdrugs.com
permit same-security-traffic inter-interface
permit same-security-traffic intra-interface
the DM_INLINE_NETWORK_1 object-group network
object-network 10.195.64.0 255.255.255.0
object-network 10.239.192.0 255.255.255.0
object-network 10.239.192.128 255.255.255.128
object-group service DM_INLINE_SERVICE_1
the purpose of the ip service
ICMP service object
the purpose of the echo icmp message service
response to echo icmp service object
the DM_INLINE_NETWORK_2 object-group network
object-network 10.195.64.0 255.255.255.0
object-network 10.239.192.0 255.255.255.128
object-network 10.239.192.128 255.255.255.128
the DM_INLINE_NETWORK_3 object-group network
network-object 10.195.64.0 255.255.255.192
object-network 10.239.192.0 255.255.255.128
object-network 10.239.192.128 255.255.255.128
the DM_INLINE_NETWORK_5 object-group network
Maridian-primary-Net network object 255.255.255.128
Meridian-backup-Net network object 255.255.255.128
the DM_INLINE_NETWORK_6 object-group network
Maridian-primary-Net network object 255.255.255.128
Meridian-backup-Net network object 255.255.255.128
object-group network Vital-network-hardware-access
host of the object-Network UnityVM
host of the CiscoCallManager object-Network
host of the object-Network AccessSwitch1MDFA
host of the object-Network AccessSwitch1IDFB
host of the object-Network AccessSwitch2IDFB
host of the object-Network AccessSwitch1IDFC
host of the object-Network CoreSwitch1
host of the object-Network CoreSwitch2
object-group service RDP - tcp
EQ port 3389 object
the DM_INLINE_NETWORK_7 object-group network
Maridian-primary-Net network object 255.255.255.128
Meridian-backup-Net network object 255.255.255.128
host of network-object Meridian-primary-VPN
host of the object-Network Meridian_Backup_VPN
the DM_INLINE_NETWORK_9 object-group network
host of the object-Network Outside_Interface
Group-object Vital-equipment-access to the network
object-group service DM_INLINE_SERVICE_2
will the service object
ESP service object
the purpose of the service ah
the eq isakmp udp service object
object-group service DM_INLINE_SERVICE_3
ICMP service object
the purpose of the echo icmp message service
response to echo icmp service object
the DM_INLINE_NETWORK_4 object-group network
object-network 10.195.64.0 255.255.255.0
object-network 10.239.192.0 255.255.255.128
object-network 10.239.192.128 255.255.255.128
the DM_INLINE_NETWORK_8 object-group network
object-network 10.195.64.0 255.255.255.0
object-network 10.239.192.0 255.255.255.128
object-network 10.239.192.128 255.255.255.128
Outside_access_in list extended access permit icmp any any echo response
Access extensive list Maridian-primary-Net ip Outside_access_in 255.255.255.128 DM_INLINE_NETWORK_8 object-group enable
Access extensive list Meridian-backup-Net ip Outside_access_in 255.255.255.128 DM_INLINE_NETWORK_3 object-group enable
Inside_nat0_outbound to access ip 10.0.0.0 scope list allow 255.0.0.0 10.0.0.0 255.0.0.0
Access extensive list ip 10.239.192.0 Inside_nat0_outbound allow Maridian-primary-Net 255.255.255.0 255.255.255.128
Inside_access_in to access ip 10.0.0.0 scope list allow 255.0.0.0 all
Inside1_nat0_outbound to access ip 10.0.0.0 scope list allow 255.0.0.0 10.0.0.0 255.0.0.0
Inside1_nat0_outbound list extended access allowed object-group DM_INLINE_NETWORK_1 Maridian-primary-Net 255.255.255.128 ip
Inside1_nat0_outbound list extended access permitted ip object-group Meridian-backup-Net DM_INLINE_NETWORK_2 255.255.255.128
Access extensive list ip 10.239.192.0 Inside1_nat0_outbound allow 255.255.255.0 10.239.199.0 255.255.255.192
Access extensive list ip 10.195.64.0 Inside1_nat0_outbound allow 255.255.255.192 10.239.199.0 255.255.255.192
Inside1_access_in to access ip 10.0.0.0 scope list allow 255.0.0.0 all
Outside_1_cryptomap list extended access allowed object-group DM_INLINE_SERVICE_1-DM_INLINE_NETWORK_1 Maridian-primary-Net 255.255.255.128 objects
Outside_2_cryptomap list extended access permitted ip object-group Meridian-backup-Net DM_INLINE_NETWORK_2 255.255.255.128
permitted access Vital-network-Access_splitTunnelAcl-list standard 10.239.192.0 255.255.255.128
permitted access Vital-network-Access_splitTunnelAcl-list standard 10.195.64.0 255.255.255.0
permitted access Vital-network-Access_splitTunnelAcl-list standard 10.239.192.128 255.255.255.128
Access extensive list ip 10.239.199.0 Vital_VPN allow 255.255.255.192 object-group Vital-equipment-access to the network
Vital_VPN list extended access allow icmp 10.239.199.0 255.255.255.192 object-group Vital-equipment-access to the network
Vital_VPN of access allowed any ip an extended list
Outside_cryptomap_1 list extended access allowed object-group DM_INLINE_NETWORK_4 Maridian-primary-Net 255.255.255.128 ip
access list Vital-Site-to-site access extended allow ip object-DM_INLINE_NETWORK_5 group Vital-network-hardware-access object
Vital-Site-to-Site-access extended access list permits object-group DM_INLINE_SERVICE_3-group of objects DM_INLINE_NETWORK_6 object-group Vital-equipment-access to the network
Vital-Site-to-Site-access extended access list permits object-group objects object-group DM_INLINE_NETWORK_9 DM_INLINE_NETWORK_7 DM_INLINE_SERVICE_2-group
pager lines 24
Enable logging
exploitation forest asdm warnings
Outside 1500 MTU
MTU 1500 Inside1
management of MTU 1500
mask IP local pool access remote 10.239.199.11 - 10.239.199.62 255.255.255.192
ICMP unreachable rate-limit 1 burst-size 1
ASDM image disk0: / asdm - 621.bin
don't allow no asdm history
ARP timeout 14400
Global (1 interface external)
NAT (Inside1) 0-list of access Inside1_nat0_outbound
NAT (Inside1) 1 10.0.0.0 255.0.0.0
Access-group Outside_access_in in interface outside
Access-group Inside1_access_in in interface Inside1
Route outside 0.0.0.0 0.0.0.0 140.239.116.161 1
Route Inside1 10.192.52.0 255.255.255.0 10.239.192.1 1
Route Inside1 10.195.64.0 255.255.240.0 10.239.192.1 1
Route Inside1 10.239.0.0 255.255.0.0 10.239.192.1 1
Route Inside1 10.239.192.0 255.255.248.0 10.239.192.1 1
Route out of the Maridian-primary-Net 255.255.255.0 Outside_Interface 1
Timeout xlate 03:00
Timeout conn 01:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
Sunrpc timeout 0:10:00 h323 0:05:00 h225 mgcp from 01:00 0:05:00 mgcp-pat 0:05:00
Sip timeout 0:30:00 sip_media 0:02:00 prompt Protocol sip-0: 03:00 sip - disconnect 0:02:00
Timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
dynamic-access-policy-registration DfltAccessPolicy
Enable http server
http 66.104.209.192 255.255.255.224 outside
http 192.168.1.0 255.255.255.0 management
http 10.239.172.0 255.255.252.0 Inside1
SNMP-server host Inside1 10.239.132.225 community appfirestarter * #*.
location of Server SNMP Raleigh
contact Server SNMP Kevin mcdonald
Server SNMP community appfirestarter * #*.
Server enable SNMP traps snmp authentication linkup, linkdown cold start
Server SNMP traps enable entity config change
Crypto ipsec transform-set ESP-3DES-MD5-esp-3des esp-md5-hmac
Crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac
Crypto ipsec transform-set ESP-DES-SHA esp - esp-sha-hmac
Crypto ipsec transform-set ESP-DES-MD5 esp - esp-md5-hmac
Crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac
Crypto ipsec transform-set ESP-AES-256-SHA 256 - aes - esp esp-sha-hmac
Crypto ipsec transform-set ESP-AES-128-SHA aes - esp 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-SHA-ESP-3DES-3des esp-sha-hmac
life crypto ipsec security association seconds 28800
Crypto ipsec kilobytes of life - safety 4608000 association
Dynamic crypto map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set pfs
Crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 value 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 MD5-ESP-3DES ESP-DES-SHA ESP-DES-MD5
Dynamic crypto map SYSTEM_DEFAULT_CRYPTO_MAP 65535 define security association lifetime 28800 seconds
cryptographic kilobytes 4608000 life of the set - the association of security of the 65535 SYSTEM_DEFAULT_CRYPTO_MAP of the dynamic-map
card crypto Outside_map 1 corresponds to the address Outside_cryptomap_1
card crypto Outside_map 1 peer set VPN-primary-Meridian
Outside_map 1 transform-set ESP-3DES-MD5 crypto card game
card crypto Outside_map 1 defined security-association life seconds 28800
card crypto Outside_map 1 set security-association kilobytes of life 4608000
card crypto Outside_map 2 corresponds to the address Outside_2_cryptomap
card crypto Outside_map 2 set peer Meridian_Backup_VPN
map Outside_map 2 game of transformation-ESP-3DES-MD5 crypto
card crypto Outside_map 2 defined security-association life seconds 28800
card crypto Outside_map 2 set security-association kilobytes of life 4608000
card crypto Outside_map 65535-isakmp dynamic ipsec SYSTEM_DEFAULT_CRYPTO_MAP
Outside_map interface card crypto outside
crypto ISAKMP allow outside
crypto ISAKMP policy 5
preshared authentication
3des encryption
md5 hash
Group 2
life 86400
crypto ISAKMP policy 30
preshared authentication
3des encryption
sha hash
Group 2
life 86400
Telnet timeout 5
SSH timeout 5
Console timeout 0
outside access management
management of 192.168.1.2 - dhcpd address 192.168.1.254
enable dhcpd management
!
a basic threat threat detection
Statistics-list of access threat detection
no statistical threat detection tcp-interception
WebVPN
allow outside
tunnel-group-list activate
internal strategy of State civil-access to the network group
Group Policy attributes Vital access to the network
value of server DNS 10.239.192.10
value of VPN-filter Vital_VPN
Protocol-tunnel-VPN IPSec webvpn
Split-tunnel-policy tunnelspecified
Split-tunnel-network-list value vital-network-Access_splitTunnelAcl
value of remote access address pools
internal state civil-Site-to-Site-GroupPolicy group strategy
Civil-site-a-site-grouppolicy-strategie status of group attributes
value of VPN-filter Vital-Site-to-Site-access
Protocol-tunnel-VPN IPSec l2tp ipsec webvpn
username APPRaleigh encrypted password m40Ls2r9N918trxp
username APPRaleigh attributes
VPN-group-policy Vital-network access
type of remote access service
username, password kmadmin u8urNz44/I.ugcF. encrypted privilege 15
tunnel-group 65.118.69.251 type ipsec-l2l
tunnel-group 65.118.69.251 General-attributes
Group Policy - by Defaut-vital-site-a-site-grouppolicy
IPSec-attributes tunnel-group 65.118.69.251
pre-shared-key *.
tunnel-group 65.123.23.194 type ipsec-l2l
tunnel-group 65.123.23.194 General-attributes
Group Policy - by Defaut-vital-site-a-site-grouppolicy
IPSec-attributes tunnel-group 65.123.23.194
pre-shared-key *.
remote access of type tunnel-group Vital access to the network
tunnel-group Vital access to the network general-attributes
Access to distance-address pool
Group Policy - by default-state civilian access to the network
tunnel-group Vital access to the network ipsec-attributes
pre-shared-key *.
!
class-map inspection_default
match default-inspection-traffic
!
!
type of policy-card inspect dns migrated_dns_map_1
parameters
message-length maximum 512
Policy-map global_policy
class inspection_default
inspect the migrated_dns_map_1 dns
inspect the ftp
inspect h323 h225
inspect the h323 ras
inspect the rsh
inspect the rtsp
inspect esmtp
inspect sqlnet
inspect the skinny
inspect sunrpc
inspect xdmcp
inspect the sip
inspect the netbios
inspect the tftp
!
global service-policy global_policy
context of prompt hostname
Cryptochecksum:a080b1759b57190ba65d932785ad4967
: endcan you confirm if we have the exact reflection of crypto acl at the other end
I feel may be you have a 24 10.239.192.0 255.255.255.0 on the other end in the remote network
can you please confirm that
also a reason, why you use 10.239.192.0 255.255.255.128 and 10.239.192.128 255.255.255.128 instead of 10.239.192.0 255.255.255.0
-
How to lock a firewall on a site to site VPN
I have a site to site VPN and management wants it all locked excpet for 3 ports (5950, 5631 and 5632). Is it still possible? Thank you.
Yes, I assume you are using ASA for vpn.
so if the vpn site to site traffic is a site 10.0.1.0/24 to 10.0.2.0/24 site-b then
site a (who needs security)
Disable sysopt allowed vpn help
No vpn sysopt connection permit
now vpn traffic is analyzed against the rules of access on the external interface, place so rule
object-group authorized service tcpudp
port-object eq 5025
access list outside ext by tcp 10.0.2.0 255.255.255.0 10.0.1.0 255.255.255.0 object-group, enabled
Thank you
Manish
-
Problems with site-to-site vpn
Hello world
I recently received the mission assigned to the site to site vpn configuration and this is my first time. I'm trying to set up a vpn with pix 501 but short questions site. I managed to get that below, but I'm stuck now and do not know what could be the problem. Here's the debug output.
Any help is greatly appreciated on what could be the potential problem.
-AK
ISAKMP (0:0): sending of NAT - T vendor ID - rev 2 & 3
ISAKMP (0): early changes of Main Mode
crypto_isakmp_process_block:src:208.249.117.203, dest:70.91.20.245 spt:500 dpt:500
Exchange OAK_MM
ISAKMP (0): treatment ITS payload. Message ID = 0ISAKMP (0): audit ISAKMP transform 1 against 20 priority policy
ISAKMP: 3DES-CBC encryption
ISAKMP: hash SHA
ISAKMP: default group 2
ISAKMP: preshared auth
ISAKMP: type of life in seconds
ISAKMP: duration of life (basic) of 28800
ISAKMP (0): atts are acceptable. Next payload is 0
ISAKMP (0): load useful treatment vendor idISAKMP (0): ITS been pre-shared key, using id ID_IPV4_ADDR type authentication
to return to the State is IKMP_NO_ERROR
crypto_isakmp_process_block:src:208.249.117.203, dest:70.91.20.245 spt:500 dpt:5
00
Exchange OAK_MM
ISAKMP (0): processing KE payload. Message ID = 0ISAKMP (0): processing NONCE payload. Message ID = 0
ISAKMP (0): load useful treatment vendor id
ISAKMP (0): load useful treatment vendor id
ISAKMP (0): provider v6 code received xauth
ISAKMP (0): load useful treatment vendor id
ISAKMP (0): addressing another box of IOS!
ISAKMP (0): load useful treatment vendor id
ISAKMP (0): addressing a VPN3000 concentrator
ISAKMP (0): ID payload
next payload: 8
type: 1
Protocol: 17
Port: 0
Length: 8
ISAKMP (0): the total payload length: 12
to return to the State is IKMP_NO_ERROR
crypto_isakmp_process_block:src:208.249.117.203, dest:70.91.20.245 spt:500 dpt:5
00
Exchange OAK_MM
ISAKMP (0): processing ID payload. Message ID = 0
ISAKMP (0): HASH payload processing. Message ID = 0
ISAKMP (0): keep treatment alive: proposal = 32767/32767 sec., real = 3276/2 sec.ISAKMP (0): load useful treatment vendor id
ISAKMP (0): Peer Remote supports dead peer detection
ISAKMP (0): SA has been authenticated.
ISAKMP (0): start Quick Mode changes, 413131006:189fe0feIPSEC (key_e M - ID
(Display): had an event of the queue...
IPSec (spi_response): spi 0x3e9451fa graduation (1049907706) for SA
from 208.249.117.203 to 70.91.20.245 for prot 3to return to the State is IKMP_NO_ERROR
ISAKMP (0): send to notify INITIAL_CONTACT
ISAKMP (0): sending message 24578 NOTIFY 1 protocol
Peer VPN: ISAKMP: approved new addition: ip:208.249.117.203/500 Total VPN peer: 1
Peer VPN: ISAKMP: ip:208.249.117.203/500 Ref cnt is incremented to peers: 1 Total VPN
Peers: 1
crypto_isakmp_process_block:src:208.249.117.203, dest:70.91.20.245 spt:500 dpt:5
00
ISAKMP (0): processing DELETE payload. Message ID = 3425658127, spi size = 16
ISAKMP (0): delete SA: src 70.91.20.245 dst 208.249.117.203
to return to the State is IKMP_NO_ERR_NO_TRANS
ISADB: Reaper checking HIS 0xac149c, id_conn = 0 DELETE IT!Peer VPN: ISAKMP: ip:208.249.117.203/500 Ref cnt decremented to peers: 0 Total VPN
Peers: 1
Peer VPN: ISAKMP: deleted peer: ip:208.249.117.203/500 VPN peer Total: 0IPSEC (ke
y_engine): got an event from the queue.
IPSec (key_engine_delete_sas): rec would remove the ISAKMP notify
IPSec (key_engine_delete_sas): remove all SAs shared with 208.249.117.203
IPSec (key_engine): request timer shot: count = 2,.
local (identity) = 70.91.20.245, distance = 208.249.117.203.
local_proxy = 0.0.0.0/0.0.0.0/0/0 (type = 4),
remote_proxy = 206.200.22.0/255.255.255.0/0/0 (type = 4)Hello
Newspapers, I see you are using a VPN 3000 Concentrator as the remote vpn end point. Now, also of the debugs next section is interesting:
local (identity) = 70.91.20.245, distance = 208.249.117.203.
local_proxy = 0.0.0.0/0.0.0.0/0/0 (type = 4),
remote_proxy = 206.200.22.0/255.255.255.0/0/0 (type = 4)-Looks like our traffic interesting PIX and the hub are not mirrors of each other, and does not. Can you please paste the PIX here cryptographic access lists, so that I can analyze the entries.
-Also, please make sure that you have followed all the steps during the vpn configuration according to the following links:
If your PIX is running at version 7.x and more: http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a008064a06f.shtml
If your PIX is running version 6.3.x: http://www.cisco.com/en/US/products/hw/vpndevc/ps2284/products_configuration_example09186a00800949d2.shtml
Once you check the config on PIX and concentrator, please provide me with the output of "sh cry isa his" and "sh cry ipsec his ' of the PIX. With this release, we can continue to troubleshoot if there is more questions.
Let me know if this can help,
See you soon,.
Christian V
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