SA520w routing through site-to-site VPN tunnels

I have several offices that are connected using site-to-site VPN tunnels and all will use the SA520W (firmware 2.1.18). I currently have 3 routers in place, router tunnels created for the router B and c of router. I need assistance with the configuration to allow the guests to router site B get to the router site C. I have attempted to add a static route, but get a destination unreachable host trying to ping. Also, if I connect to the router site has via the Cisco VPN client, I'm not able to get resources on each site, B, or C.

A - the site 10.10.0.0/24

Site B - 10.0.0.0/24

Site of the C - 10.25.0.0/24

Any help is greatly appreciated.

So, that's what you have configured correctly?

RTR_A

||

_____________ || ___________

||                                            ||

RTR_B                                RTR_C

Since there is no tunnel between B and C there is no way for us past that traffic through RTR_A for two reasons. The most important reason is that subnet 10.25.0.0/24 (rtr_c) is not allowed to pass through the IPSec tunnel (it's okay to IPSec?) of rtr_a ==> rtr_b. You can't just add a statement of road because your addresses are not routable which is the reason why it fails.

Your only option is to create another tunnel between rtr_b and rtr_c. This may not be the ONLY option, but you should get what you need.

I hope this helps.

Tags: Cisco Support

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