Question : Configuring a Cisco 2801 for NxT1 (Bonded T-1)

We just bought a 2801 router with two 1DSU-T1-V2 WICs. Need to know what steps to take in order to configure this router for the bonded T1 service. Below is the current config for the router and the sample config from the carrier.

Router model is 2801, w/IPBASE IOS loaded.

Local connection info goes from the router to a switch (unprotected DMZ) to our firewall.

AVA-DMZ#sh run
Building configuration...

Current configuration : 1332 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname AVAN-DMZ
!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
!
no aaa new-model
!
resource policy
!
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
ip subnet-zero
ip cef
!
!
no ip dhcp use vrf connected
!
!
ip domain name YADAYADAXYZ.COM.
!
username isdept privilege 15 secret 5 $1$Spoh$.E1smItZTzMwcnAQNh6/k/
!
!
!
interface FastEthernet0/0
 description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-FE 0$
 ip address 63.145.139.1 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/1/0
 no ip address
 shutdown
!
interface Serial0/2/0
 no ip address
 shutdown
!
ip classless
!
ip http server
ip http authentication local
ip http timeout-policy idle 600 life 86400 requests 10000
!
!
control-plane
!
banner login ^CC
************************************************
This is a monitored system. Unauthorized access
is logged and investigated.
************************************************
^C
!
line con 0
 login local
line aux 0
line vty 0 4
 privilege level 15
 login local
 transport input telnet
line vty 5 15
 privilege level 15
 login local
 transport input telnet
!
end

Carrier Specs:
- Supports Load Balancing
- Requires ML-PPP
- Does not require/use CEF (cisco express forwarding)
- Does not support even bonding on the carrier level over ATM IMA
- Runs the same bonding protocol as the customer on carrier edge routers (MLPPP)
- All NxT1 orders require multiple T1 access loops, not DS3 loops
- Requires specific CPE that customer provides.  See list below.
   -Tasman 1002-1 (1 of 2 ports active)
   -Tasman 1002-2(both ports active)
   -Tasman 1004-1(one of 4 ports active)
   -Tasman 1004-2(2 of 4 ports active)
   -Tasman 1004-3(3 of 4 ports active)
   -Tasman 1004-4 (all 4 ports active)
   -Tasman 1400 (all 8 T1 ports active)

P.S. I've posted a similar question to this but it is a seperate instance. Participants proividing info on either questions will get credit. Thanks Guys!

Answer : Configuring a Cisco 2801 for NxT1 (Bonded T-1)

interface Multilink1
ip address x.x.x.x 255.255.255.252
ppp multilink
multilink-group 1
!
interface Serial0
 no shutdown
 encapsulation ppp
 no fair-queue
 ppp multilink
 multilink-group 1
!
interface Serial1
 no shutdown
 encapsulation ppp
 no fair-queue
 ppp multilink
 multilink-group 1


harbor235 ;}