Hi, I'm trying to configure ZBF on a 2811 router with a site-to-site VPN with GRE Tunnel. But, when I configure the Firewall, the tunnel stops. I've tryed adding several protocols like isakmp but it doesnt' work. Does anybody know which protocol to a...

I have a 2811 router with a static route like this:ip route 111.222.136.0 255.255.252.0 10.1.1.1 to go through a GRE tunnel (10.1.1.0), but now I need to configure a new route to reach a server from that range with IP address: 111.222.136.10 but goin...

I have a site-to-site vpn with two 2811 Cisco Routers with 2 interfaces each (LAN and WAN) and a GRE Tunnel.I want to implement Zone Based Firewall and I have read several configurations to block P2P and Instant messaging, but each of them is for a s...

I have a site-to-site vpn with two 2811 Cisco Routers with 2 interfaces each (LAN and WAN) and a GRE Tunnel. I have an ACL implemented to allow some PCs to have access to the VPN and another PCs to have access to Internet but deny access to vpn. I wa...

I have a site-to-site vpn with two 2811 Cisco Routers with 2 interfaces each(LAN and WAN) and a GRE Tunnel. I have an ACL implemented to allow some PCs to have access to the VPN and another PCs to have access to Internet but deny access to vpn.I want...