Can anyone point me towards a page which can show how to accurately configure Multilink PPP over T1s? I have two T1s which terminate on a 2600 at each end. Using simple HDLC and assigning an IP to each T1 works fine, but I need to turn both T1s into one logical pipe with MLPPP for packet sequencing issues. Even in the lab, when I connect the two routers with T1 x-over cables, I can't get the Multilink to work. I'm running IOS Version 12.0(3)T3 on both routers. Here's the configuration I'm trying, that's not working. Identical on both routers except for the IP on the Multilink interface:
Router1#sh run
Building configuration...
Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router1
!
!
username router2 password 0 router2
memory-size iomem 15
ip subnet-zero
!
!
!
!
interface Multilink1
ip address 172.17.0.1 255.255.255.252
no ip directed-broadcast
no cdp enable
ppp multilink
multilink-group 1
!
interface Ethernet0/0
no ip address
no ip directed-broadcast
shutdown
!
interface Serial0/0
no ip address
no ip directed-broadcast
encapsulation ppp
no ip mroute-cache
no fair-queue
ppp authentication pap
ppp pap sent-username Router1 password Router1
ppp multilink
!
interface Serial0/1
no ip address
no ip redirects
no ip directed-broadcast
encapsulation ppp
no fair-queue
ppp authentication pap
ppp pap sent-username Router1 password Router1
ppp multilink
!
ip classless
no ip http server
!
!
line con 0
logging synchronous
transport input none
line aux 0
line vty 0 4
!
no scheduler allocate
end
Router1#
