I setup a site-to-site VPN between a router and a PIX. The tunnel is up and I can access both sites when ping from users connected LAN (both sites). The issue is when I login to the router console, then from their I can't ping the other site but when i issue this command "PING 126.96.36.199 SOURCE 188.8.131.52" it is successful. By using this command "PING 184.108.40.206" it is not successful.
I need this for the VoIP configuration.
dial-peer voice 4001 voip
voice-class h323 1
session target ipv4:220.127.116.11
Voice gateway resides at LAN B.
LAN-A<-->ROUTER<-- WAN --->PIX<--> LAN-B
LAN A network: 1.1.1.x/24
LAN B network: 2.2.2.x/24