I've been working with AT&T to bring up a new ISP router with 2 T1 circuits. We keep running into the problem of the serial links showing admin up protocol down even when I am plugged into the demarc. So I know it isn't an inside wiring issue. Below is the config with the important stuff changed or removed. Does anyone see anything wrong with it that might cause the up down problem?
sh run
Building configuration...
Current configuration : 4489 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname <.....>
!
boot-start-marker
boot system flash:c2600-ipbasek9-mz.124-12.bin
boot-end-marker
!
enable secret
!
no aaa new-model
no network-clock-participate slot 1
no network-clock-participate wic 0
ip cef
!
!
!
!
no ip domain lookup
ip domain name yolocourts.com
ip name-server <#.#.#.#>
ip ssh time-out 60
!
!
username
!
!
controller T1 0/0
framing esf
linecode b8zs
channel-group 0 timeslots 1-24
description *Circuit ID# .......*
!
controller T1 0/1
framing esf
linecode b8zs
channel-group 0 timeslots 1-24
description *Circuit ID# ......*
!
!
!
interface Multilink1
ip address <#.#.#.#> mask
ip access-group 100 in
no keepalive
no cdp enable
ppp chap hostname <#.#.#.#>
ppp multilink
ppp multilink fragment disable
ppp multilink group 1
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0:0
description connection to (.DHEC.....
no ip address
encapsulation ppp
no fair-queue
no cdp enable
ppp chap hostname <#.#.#.#>
ppp multilink
ppp multilink group 1
max-reserved-bandwidth 100
!
interface FastEthernet0/1
description Connected to
ip address <#.#.#.#> mask
no ip redirects
no ip unreachables
no ip proxy-arp
no ip mroute-cache
duplex auto
speed auto
no cdp enable
!
interface Serial0/1:0
description connection to (.DHEC......
no ip address
encapsulation ppp
no fair-queue
no cdp enable
ppp chap hostname #.#.#.#
ppp multilink
ppp multilink group 1
max-reserved-bandwidth 100
!
ip route 0.0.0.0 0.0.0.0 Multilink1
!
no ip http server
no ip http secure-server
!
<access list removed basically blocks spoofing of my IPs showing up inbound on my serial or multilink interface. is copied from currently running router>
no cdp run
!
!
control-plane
!
!
banner motd ^C
