Monday, March 03, 2008

Multilink PPP for DDR and ISDN

TEST_MLPPP#sh run
Building configuration...

Current configuration : 4959 bytes
!
version 12.2
!
hostname TEST_MLPPP
!
enable password 7 13061E010803
!
ip subnet-zero
!
ip cef
no ip domain lookup
!
isdn switch-type primary-net5
!
!
controller E1 6/0 "1st LL"
channel-group 0 timeslots 1-30
!
controller E1 6/1 "2nd LL"
channel-group 0 timeslots 1-30
!
controller E1 6/2 "3rd LL"
channel-group 0 timeslots 1-30
!
controller E1 6/3
!
controller E1 6/4
!
controller E1 6/5 "1st ISDN PRI"
pri-group timeslots 1-30
!
controller E1 6/6 "2nd ISDN PRI"
pri-group timeslots 1-30
!
controller E1 6/7 "3rd ISDN PRI"
pri-group timeslots 1-30
!
!
interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
interface Multilink1 "Main interface represent the 3 LLs"
ip address 60.140.10.126 255.255.255.252
no ip redirects
no ip proxy-arp
backup interface Dialer2 "ISDN backup with 3xPRIs"
no cdp enable
ppp multilink
ppp multilink links minimum 3 mandatory
multilink load-threshold 1 outbound
multilink-group 1

!
interface FastEthernet0/0
description *** Connection to CE LAN ***
ip address 10.1.1.1 255.255.255.0
duplex auto
speed auto
!
!
interface Serial6/0:0 "1st LL"
ip address 60.140.10.34 255.255.255.252
encapsulation ppp
no fair-queue
ppp multilink
multilink-group 1
!
interface Serial6/1:0 "2nd LL"
ip address 60.140.7.254 255.255.255.252
encapsulation ppp
no fair-queue
ppp multilink
multilink-group 1
!
interface Serial6/2:0 "3rd LL"
ip address 60.140.10.38 255.255.255.252
encapsulation ppp
no fair-queue
ppp multilink
multilink-group 1

!
interface Serial6/5:15 "1st ISDN PRI"
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type primary-net5
ppp multilink
!
interface Serial6/6:15 "2nd ISDN PRI"
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type primary-net5
ppp multilink
!
interface Serial6/7:15 "3rd ISDN PRI"
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type primary-net5
ppp multilink

!
!
interface Dialer2 "Main interface represent the 3 ISDN PRIs"
ip address negotiated
encapsulation ppp
dialer pool 1
dialer idle-timeout 600
dialer string 22220000
dialer load-threshold 1 outbound
dialer-group 1
no fair-queue
ppp chap hostname abc@abc.com
ppp chap password 7 070C31
ppp multilink links minimum 90 mandatory

!
!
ip classless
ip route 0.0.0.0 0.0.0.0 60.140.10.125
ip route 0.0.0.0 0.0.0.0 Dialer2 230

no ip http server
!
!
!
dialer-list 1 protocol ip permit
!
!
!
end