I have a Cisco 2811 Router configurated with a GRE tunnel, and I want to add another tunnel to other remote site. This is the configuration of the first tunnel:
ip address 10.1.1.1 255.255.255.252
ip access-group 10 out
ip nat inside
keepalive 10 3
tunnel source Vlan1
tunnel destination xxx.xxx.xxx.xxx
crypto map IPSEC_VPN
I have some doubts about what subnet to configure for the second tunnel.
In the existing tunnel, the IP address is: 10.1.1.1 and mask: 255.255.255.252 so the subnet is 10.1.1.0. I suppose, I have to configure another diferent subnet (i.e. 10.1.2.0) for the second tunnel, but what IP address and mask, 10.1.2.1 255.255.255.0?
When a PC from the LAN of this router try to connect to the remote router using the tunnel, what IP address do it use?
Thanks and regards
You are wrong, all your PC needs is a default gateway route to the router, a default route is a route that defines, all unknown IP traffic should be forwarded to the next hop defined in the default route.