I am trying to setup a site to site VPN with the 2860 acting as the server and the 2820 as the client end, i have VPN's setup and connected but am unable to ping devices connected to the 2860 end, i can ping the router fine but nothing else.

the 2860 is on 192.168.5.1 and the 2820 is on 192.168.1.1, if you tracert from a device connected to the 2820 to say a device on 192.168.5.100 you get the below

Tracing route to 192.168.5.100 over a maximum of 30 hops

1 <1 ms <1 ms <1 ms Vigor.router [192.168.1.1] (Client End)
2 47 ms 46 ms 46 ms 192.168.5.1 (Server End)
3 * * * Request timed out.
4 * * * Request timed out.
5 * * * Request timed out.

any help on this would be good.