04-15-2008 02:01 AM
can i establish two vpn tunnels on a cisco router 805, as i have no one tunnel which is up, but how to make the second tunnel that have another peer , go up , knowing that i only have one serial interface
04-15-2008 09:12 AM
Charbel
Yes it is possible to establish 2 VPN tunnels which terminate on a single serial interface. If you currently have 1 tunnel that is up and running then you already have a crypto map configured. You use the same crypto map and configure a second instance in the crypto map to establish the second tunnel. If your existing map would look something like this:
crypto map my_map 10 ipsec-isakmp
set peer n.n.n.n
plus other map statements
then you would add
crypto map my_map 20 ipsec-isakmp
set peer a.a.a.a
plus other map statements
You will have one interface which will terminate 2 tunnels using a single crypto map with 2 instances configured within the single crypto map.
HTH
Rick
04-15-2008 11:08 PM
Dear Rick
thanks for your reply.
the configuration i have now is the same as u said, but i still have one issue
when i finish configuring the crypto map, i have to assign it to an interface
router(config)# int s0
router(config)# crypto map my map
when i enter this command, the s0 wont be assigned to the VPN that is already up, which will make it stop and it would be down.
any solution for it?
04-16-2008 03:40 AM
Charbel
You seem to not understand my explanation that you do not create 2 maps. You create 1 map that has 2 sets of definitions (10 and 20 in my example - it might be different in your config).
I used my_map as an example. In your config use the name that you are already using and not my_map.
If you still do not understand then post the configuration of your existing crypto map and the configuration of the serial interface and I will suggest the changes that you need to make.
HTH
Rick
04-16-2008 11:12 PM
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