int e0/0
ip add neg (or a static in the same subnet as the gateway...ip add x.x.x.x y.y.y.y)
no shut
int e0/1
ip add x.x.x.x y.y.y.y
no shut
access-list 101
deny tcp any 192.168.1.0 0.0.0.255 eq dns
permit ip any any
That's an example. Google for Cisco basic config examples---plenty on Cisco's site. I doubt anyone here is going to totally configure your router w/0 a fee. If your router has 10MB ethernet interfaces (2611), then you need a robust IOS other than IP Base or IP Plus code to do ip dhcp, or to run full duplex for RoAS/VLANs.
/
tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!