Cisco PPP and T1 Help 1

[heckerka]

I am trying to hook up 2 cisco 1721 routers over a T1 with PPP and need a little help! I have configured the CHAP on the serial interfaces and they work.

Router A
hostname B8111T1

ip subnet-zero

interface FastEthernet0
description Connected to LSTF Switch
ip address 206.39.202.247 255.255.255.0
speed auto
full-duplex

interface Serial0
ip address 10.10.1.1 255.255.255.0
encapsulation ppp
ppp authentication chap
!
ip classless
no ip http server


Router B
version 12.2

hostname B2110T1

ip subnet-zero
no ip routing

interface FastEthernet0
ip address 206.39.202.248 255.255.255.0
no ip route-cache
speed auto
full-duplex
!
interface Serial0
description Connected to T1
ip address 10.10.1.2 255.255.255.0
encapsulation ppp
no ip route-cache
no fair-queue
ppp authentication chap
!
ip classless
no ip http server

Thanks

 

[IllegalOperation]

If they work, then why do you need help?

 

[Cluebird]

You need to add a username and password combination to your configs to make chap work. By default, chap expects the username to be the remote router's hostname. Passwords on both sides must match. Case is sensitive. You can change this behavior with sent username and sent password commands.

On Router A add this:

username B2110T1 password cisco123

On Router B add this:

username B8111T1 password cisco123

 

[heckerka]

So if i decide not to use Chap authentication i would use the no chap authentication command on the wic cards and it should still work right!

 

[Cluebird]

Yup.

 

[commsguy]

why authenticate on a point to point T1?

commsguy

http://www.convetech.com