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Site to Site setup

Shane Bohannan
Level 1
Level 1

im drawing a blank trying to setup a site to site connection with a 5505 ASA using ipsec and isakmp.

i have the pre shared key as well as the external address of the other end of the tunnel but do not remember what the commands are to setup the crypto map and isakmp.

Any help is greatly needed.

Thank you

shane

7 Replies 7

praprama
Cisco Employee
Cisco Employee

Hi Shane,

Since this question is to do with VPNs, i am moving this discussion to the VPN community. Here's a link that might help you out:

http://www.cisco.com/en/US/products/ps6120/products_configuration_example09186a0080950890.shtml

For a list of all ASA config examples, use this link:

http://www.cisco.com/en/US/products/ps6120/prod_configuration_examples_list.html

Also, take a look at the vpnsetup command on the ASA:

http://www.cisco.com/en/US/docs/security/asa/asa84/command/reference/uz.html#wp1557319

Regards,

Prapanch

i have followed the examples and i guess im still missing something, below is a show run of the ASA.

Thank you

Shane

Password:
Type help or '?' for a list of available commands.
ciscoasa> enable
Password: *******
ciscoasa# show run
: Saved
:
ASA Version 8.0(3)
!
hostname ciscoasa
enable password bGPREHRQgo.4VIvW encrypted
names
name 128.1.0.0 RMC description RMC Connection
!
interface Vlan1
nameif inside
security-level 100
ip address 192.168.52.254 255.255.255.0
!
interface Vlan2
description Itc Delta Com DSL connection
nameif outside
security-level 0
pppoe client vpdn group DSLPPPoE
ip address pppoe setroute
!
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
access-list 100 extended permit ip 192.168.52.0 255.255.255.0 RMC 255.255.0.0
access-list nonat extended permit ip 192.168.52.0 255.255.255.0 RMC 255.255.0.0
pager lines 24
logging asdm informational
mtu inside 1500
mtu outside 1500
icmp unreachable rate-limit 1 burst-size 1
icmp permit any inside
asdm image disk0:/ASDM-603.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
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
dynamic-access-policy-record DfltAccessPolicy
http server enable
http 192.168.52.0 255.255.255.0 inside
http 128.1.40.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set ESP-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 transform-set myset esp-3des esp-sha-hmac
crypto map outside_map 20 match address 100
crypto map outside_map 20 set peer 12.195.138.34
crypto map outside_map 20 set transform-set myset
crypto map outside_map interface outside
crypto isakmp enable outside
crypto isakmp policy 1
authentication pre-share
encryption des
hash md5
group 1
lifetime 86400
crypto isakmp policy 5
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
no crypto isakmp nat-traversal
telnet 192.168.52.0 255.255.255.0 inside
telnet timeout 5
ssh timeout 5
console timeout 0
vpdn group DSLPPPoE request dialout pppoe
vpdn group DSLPPPoE localname qlagiatr@itcdeltacom.net
vpdn group DSLPPPoE ppp authentication pap
vpdn username qlagiatr@itcdeltacom.net password *********
dhcpd auto_config outside
!

threat-detection basic-threat
threat-detection statistics access-list
tunnel-group 12.195.138.34 type ipsec-l2l
tunnel-group 12.195.138.34 ipsec-attributes
pre-shared-key *
!
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
  inspect icmp
!
service-policy global_policy global
prompt hostname context
Cryptochecksum:fcd29d39a4971745c4dbfec708df0516
: end
ciscoasa#

Hi Shane

the config on this end looks ok. Do you have the config of the other ASA as well?

Regards,

Prapanch

Removed

Hi,

On your ASA, try adding this line:

crypto map outside_map 20 set pfs group1

Regards,

Prapanch

Since the last post i took out everything from my config and typed in the same information as the remote asa reversing the ip address to match mine and the tunnel still does not start up.

Can i look at your configuration again? You can enable debug crypto isa 127and debug crypto ips 127 on your ASA and post those debugs here.

Cheers,

Prapanch