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ASA LAN-to-LAN VPN out Multiple Interfaces

Bill CARTER
Level 5
Level 5

I have an ASA connected to 2 ISPs.I am using object tracking for the default route so only 1 path is used at a time. I have a L2L VPN setup going out interface A. I would like to configure a 2nd VPN going out interface B with identical parameters.

Is this possible?

(ASA software 8.2)

crypto map PATH_A 1 match address outside_1_cryptomap

crypto map PATH_A 1 set peer 10.1.1.1

crypto map PATH_A 1 set transform-set ESP-AES-128-SHA

crypto map PATH_A 1 set security-association lifetime seconds 28800

crypto map PATH_A 1 set security-association lifetime kilobytes 4608000

crypto map PATH_A 1 set reverse-route

crypto map PATH_A interface OUTSIDE_A

crypto map PATH_B 100 match address outside_1_cryptomap

crypto map PATH_B 100 set peer 10.1.1.1

crypto map PATH_B 100 set transform-set ESP-AES-128-SHA

crypto map PATH_B 100 set security-association lifetime seconds 28800

crypto map PATH_B 100 set security-association lifetime kilobytes 4608000

crypto map PATH_B 100 set reverse-route

crypto map PATH_B interface OUTSIDE_B

!

!

crypto isakmp enable OUTSIDE_A

crypto isakmp enable OUTSIDE_B

crypto isakmp policy 1

authentication pre-share

encryption aes

hash sha

group 2

lifetime 86400

tunnel-group 10.1.1.1 type ipsec-l2l

tunnel-group 10.1.1.1 general-attributes

default-group-policy MY-VPN

tunnel-group 10.1.1.1 ipsec-attributes

pre-shared-key 123456

!

group-policy MY-VPN internal

group-policy MY-VPN attributes

vpn-tunnel-protocol IPSec

1 Accepted Solution

Accepted Solutions

pf
Level 1
Level 1

Hi Bill

This is possible, but you have to add the same crypto map to both of the inetrfaces

crypto map PATH_A interface OUTSIDE_A

crypto map PATH_A interface OUTSIDE_B

and it is not allowed to use the reverse route command.

You need to but also "timeout floating-conn 0:01:00"

I have used one internet connection for the site-to-site vpn and the other one for all other traffic (default route). All routes tracked with ip sla.

I have done that with 8.6

View solution in original post

2 Replies 2

pf
Level 1
Level 1

Hi Bill

This is possible, but you have to add the same crypto map to both of the inetrfaces

crypto map PATH_A interface OUTSIDE_A

crypto map PATH_A interface OUTSIDE_B

and it is not allowed to use the reverse route command.

You need to but also "timeout floating-conn 0:01:00"

I have used one internet connection for the site-to-site vpn and the other one for all other traffic (default route). All routes tracked with ip sla.

I have done that with 8.6

Thanks. This worked.

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