I just got Comcast internet with dynamic ip. I am installing cisco 1811 behind the comcast modem. But I cannot send the traffic out. I tried with and w/o BVI option in 1811 but still does not work. Does anyone have any suggestion?
Here are some basical config:
int fas 0
ip add dhcp
ip nat outside
int vlan 1
ip add 192.168.0.1 255.255.255.0
ip nat inside
ip nat inside source route-map NoNat interface fas 0 overload
ip access-list extended NATList
deny ip 192.168.0.0 0.0.0.255 10.0.0.0 0.255.255.255
deny ip 192.168.0.0 0.0.0.255 172.16.0.0 0.15.255.255
deny ip 192.168.0.0 0.0.0.255 192.168.0.0 0.0.255.255
permit ip 192.168.0.0 0.0.0.255 any
route-map nonat permit 10
match ip address NATList
ip route 0.0.0.0 0.0.0.0 FastEthernet0 name DefaultRouteToComcast
I called Comcast; they said the modem only allows one config and they don't know how to config anything behind the modem other than PCs.
Any help will be greatly apprecated!