I'm having an issue with a 1811 router that was working perfectly fine before today, but now does not allow traffic to leave the LAN and enter the WAN.
All hosts on the LAN side can see each other and the router's vlan1 interface, which is on the same subnet. None of the hosts can see the router's Fastethernet0 interface, which is our WAN connected to the internet. Even hosts set to use this router as their gateway cannot even ping the router's WAN address.
The router has no problem pinging hosts on the internet or on the local network. The problem must therefore be in the router's configuration. The thing is, though, that it looks perfectly fine to me.
Any thoughts?
Here's a bit of the config from the router:
interface FastEthernet0 description Internet 1$FW_OUTSIDE$$ES_WAN$$ETH-WAN$ ip address 68.98.219.141 255.255.255.224 ip verify unicast reverse-path ip mask-reply no ip proxy-arp ip nbar protocol-discovery ip flow ingress ip flow egress ip nat outside ip ips sdm_ips_rule in ip virtual-reassembly ip route-cache flow duplex auto speed auto ! interface FastEthernet8 description Internal LAN 1 ! interface Vlan1 description $ETH-SW-LAUNCH$$INTF-INFO-FE 2$$ES_LAN$$FW_INSIDE$ ip address 10.0.3.1 255.255.248.0 ip mask-reply ip nbar protocol-discovery ip flow ingress ip flow egress ip nat inside ip virtual-reassembly ip route-cache flow ip tcp adjust-mss 1452 ! ip route 0.0.0.0 0.0.0.0 68.98.219.129 permanent ip route 68.98.219.144 255.255.255.252 Vlan1