I made a R2R vpn between two sites using C2621.I can find computerd and transfer files through IPSec, but I can't ping and vnc etc. Did I miss something or make something wrong configuration,I follow cisco example, creat access-list like "permit ip X X", should I also add "permit icmp X X", but why my vnc doesn't work, ( vnc is a tool like X-window ).I appreciate all your any help. thanks in advance.