Sample config for T1 Internet access using Cisco 2621 1

[jason305]

I've just had installed a T1 internet circuit. My ISP gave me an IP subnet and the IP address to use for the gateway.

We're using real world IP addresses internally so I'm not worried about NAT just yet. We'll be going to a private scheme soon and I'll configure it later.

I'm just not sure what the configuration of my Serial interface should look like.

Can anyone supply a sample config?

 

[jeter]

is this a t1 point to point or a frame relay ?

A frame-relay could look something like this.

interface Serial0
description Circuit # 60.QGZA.777777
bandwidth 768
no ip address
no ip directed-broadcast
encapsulation frame-relay IETF
no fair-queue
service-module t1 timeslots 1-12
frame-relay lmi-type ansi

and a point to point something like this.

Interface Serial 0
ip address 208.29.xxx.xx 255.255.255.252
no ip directed-broadcast
no fair-queue

set up your ip default-gateway and an ip route 0.0.0.0 0.0.0.0 208.xxx.xxx.xxx
for example your wan would be 208.2.165.166 and your route back would be
208.2.165.167 ( for gateway and ip route )
I hopr this helps !!! #-)