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Addition tunnel for Site to Site VPN


We received this question from our CSC Facebook community.

Ahmed Fakhry hello guys , i wanna know if it is possible to make more than one Site to Site VPN tunnel using the same serial interface and different destinations ...

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Cisco Online Support Community - NetPro Hi Ahmed. We found a similar discussion in our CSC VPN forum. Take a look and let us know if this is helpful.

Ahmed Fakhry Thanks alot , but i think my situation is alittle bit different .i Already have configured a VPN tunnel and it is working properly , the question is that i need to add another tunnel using the same serial interface to adifferent tunnel

Ahmed Fakhry As far as i know ,,there are some steps to creat a tunnel ...I am not sure if i proceed throw all this steps agian with different Values does it work ???


Re: Addition tunnel for Site to Site VPN


You can definitly have multiple tunnels terminating on the same interface on a router.

If you have a working IPsec tunnel on the interface now, you just need to the another crypto map instance to the configuration with the correct information for this new peer.

No matter how many IPsec peers you want on the serial interface, you will have a single crypto map applied, but will have multiple crypto map instances.

crypto map mymap 10

crypto map mymap 20

crypto map mymap 30