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10.25.2007 at 10:24AM PDT, ID: 22918204
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Attachment Details

Cisco ASA VPN Assistance

Asked by Amit82 in Virtual Private Networking (VPN), IPSec Security Protocol, Cisco PIX Firewall

Tags: asa, has, cisco

Hello All,

I recently set up a site to site VPN for two branch locations using Cisco ASA.  The VPN was running fine for about 2 weeks or so (in the meantime, I was having issues with Netbios, but that'll be another post).  It seems like all of a sudden, this week, the VPN has stopped working.  I have a trouble ticket with Cisco opened on this issue for about 3 days.  I'm hoping your expertise will be faster.  As far as I know, no changes were made.  Unless a change was not saved to the startup config, I can not understand why this VPN will not work.  I have paste the config file for both routers below:

Router 1 (Branch Location)

Easton# show config
: Saved
: Written by enable_15 at 06:50:19.071 UTC Thu Oct 25 2007
!
ASA Version 7.2(2)
!
hostname Easton
domain-name default.domain.invalid
enable password 8Ry2YjIyt7RRXU24 encrypted
names
!
interface Vlan1
 nameif inside
 security-level 100
 ip address 192.168.1.1 255.255.255.0
!
interface Vlan2
 nameif outside
 security-level 0
 ip address 69.x.x.x 255.255.255.0
!
interface Ethernet0/0
 switchport access vlan 2
!
interface Ethernet0/1
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
!
interface Ethernet0/6
!
interface Ethernet0/7
!
passwd 2KFQnbNIdI.2KYOU encrypted
ftp mode passive
dns server-group DefaultDNS
 domain-name default.domain.invalid
access-list acl_out extended permit tcp any interface outside eq 3389
access-list 101 extended permit ip 192.168.1.0 255.255.255.0 192.16.0.0 255.255.
255.0
access-list 101 extended permit tcp 192.168.1.0 255.255.255.0 192.16.0.0 255.255
.255.0
access-list outside_20_cryptomap extended permit ip 192.168.1.0 255.255.255.0 19
2.16.0.0 255.255.255.0
access-list nonat extended permit ip 192.168.1.0 255.255.255.0 192.16.0.0 255.25
5.255.0
pager lines 24
logging asdm informational
mtu inside 1500
mtu outside 1500
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-522.bin
no asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list nonat
nat (inside) 1 0.0.0.0 0.0.0.0
static (inside,outside) tcp interface 3389 192.168.1.200 3389 netmask 255.255.25
5.255
access-group acl_out in interface outside
route outside 0.0.0.0 0.0.0.0 69.x.x.x 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout uauth 0:05:00 absolute
http server enable
http 192.168.1.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto map VPN_map 10 match address 101
crypto map VPN_map 10 set peer 24.X.X.X
crypto map outside_map 20 match address outside_20_cryptomap
crypto map outside_map 20 set pfs
crypto map outside_map 20 set peer 24.X.X.X
crypto map outside_map 20 set transform-set ESP-3DES-SHA
crypto map outside_map interface outside
crypto isakmp identity address
crypto isakmp enable outside
crypto isakmp policy 10
 authentication pre-share
 encryption 3des
 hash sha
 group 2
 lifetime 86400
tunnel-group 24.X.X.X type ipsec-l2l
tunnel-group 24.X.X.X ipsec-attributes
 pre-shared-key *
telnet 192.168.1.0 255.255.255.0 inside
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd auto_config outside
!
dhcpd address 192.168.1.2-192.168.1.33 inside
dhcpd enable inside
!

!
class-map inspection_default
 match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
 parameters
  message-length maximum 512
policy-map global_policy
 class inspection_default
  inspect dns preset_dns_map
  inspect ftp
  inspect h323 h225
  inspect h323 ras
  inspect rsh
  inspect rtsp
  inspect esmtp
  inspect sqlnet
  inspect skinny
  inspect sunrpc
  inspect xdmcp
  inspect sip
  inspect netbios
  inspect tftp
!
service-policy global_policy global
prompt hostname context
Cryptochecksum:815a6359d716e653e776cd9c84ba8a1a

Router 2 (Headquarters)

GlenBurnie# show run
: Saved
:
ASA Version 7.2(2)
!
hostname GlenBurnie
domain-name default.domain.invalid
enable password nS3FkNmcU/7DeXGU encrypted
names
!
interface Vlan1
 nameif inside
 security-level 100
 ip address 192.16.0.254 255.255.255.0
!
interface Vlan2
 nameif outside
 security-level 0
 ip address 24.x.x.x 255.255.240.0
!
interface Ethernet0/0
 switchport access vlan 2
!
interface Ethernet0/1
!
interface Ethernet0/2
!
interface Ethernet0/3
 shutdown
!
interface Ethernet0/4
 shutdown
!
interface Ethernet0/5
 shutdown
!
interface Ethernet0/6
 shutdown
!
interface Ethernet0/7
 shutdown
!
passwd nS3FkNmcU/7DeXGU encrypted
ftp mode passive
dns server-group DefaultDNS
 domain-name default.domain.invalid
access-list acl_out extended permit tcp any interface outside eq 3389
access-list acl_out extended permit tcp any interface outside eq telnet
access-list ssh_out extended permit tcp any interface outside eq ssh
access-list outside_30_cryptomap extended permit ip 192.16.0.0 255.255.255.0 192
.168.1.0 255.255.255.0
access-list nonat extended permit ip 192.16.0.0 255.255.255.0 192.168.1.0 255.25
5.255.0
access-list nonat extended permit tcp 192.16.0.0 255.255.255.0 192.168.1.0 255.2
55.255.0
pager lines 24
mtu inside 1500
mtu outside 1500
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-522.bin
no asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0
static (inside,outside) tcp interface 3389 192.16.0.126 3389 netmask 255.255.255
.255
static (inside,outside) tcp interface telnet 192.16.0.10 telnet netmask 255.255.
255.255
static (inside,outside) tcp interface ssh 192.16.0.10 ssh netmask 255.255.255.25
5
access-group acl_out in interface outside
route outside 0.0.0.0 0.0.0.0 24.x.x.x 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout uauth 0:05:00 absolute
http server enable
http 0.0.0.0 0.0.0.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set VPN_set esp-des esp-md5-hmac
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto map VPN_map 30 set pfs
crypto map VPN_map 30 set peer 69.x.x.x
crypto map VPN_map 30 set transform-set ESP-3DES-SHA
crypto map VPN_map interface outside
crypto isakmp identity address
crypto isakmp enable outside
crypto isakmp policy 30
 authentication pre-share
 encryption 3des
 hash sha
 group 2
 lifetime 86400
tunnel-group 69.x.x.x type ipsec-l2l
tunnel-group 69.x.x.x ipsec-attributes
 pre-shared-key *
telnet 0.0.0.0 0.0.0.0 inside
telnet timeout 5
ssh timeout 5
console timeout 0

!
class-map inspection_default
 match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
 parameters
  message-length maximum 512
policy-map global_policy
 class inspection_default
  inspect dns preset_dns_map
  inspect ftp
  inspect h323 h225
  inspect h323 ras
  inspect netbios
  inspect rsh
  inspect rtsp
  inspect skinny
  inspect esmtp
  inspect sqlnet
  inspect sunrpc
  inspect tftp
  inspect sip
  inspect xdmcp
!
service-policy global_policy global
prompt hostname context
Cryptochecksum:a974172675132e8f27c9be18a1553e96
: end

Thanks for you help!


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[+][-]10.25.2007 at 11:48AM PDT, ID: 20150166

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Zones: Virtual Private Networking (VPN), IPSec Security Protocol, Cisco PIX Firewall
Tags: asa, has, cisco
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Solution Provided By: theeter
Participating Experts: 1
Solution Grade: B
 
 
[+][-]10.25.2007 at 11:57AM PDT, ID: 20150262

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[+][-]10.25.2007 at 01:40PM PDT, ID: 20151249

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[+][-]10.26.2007 at 07:53AM PDT, ID: 20156049

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