09-13-2005 11:45 AM - edited 03-03-2019 10:30 AM
I have four modems dialing out to create a multilink. The modems work fine I can keep them up for the longest I have tried is 23 hours. But I can not keep any kind of routing up for more than 10 minutes. I tried EIGRP and am now trying static routes. I have had to trouble tickets in with cisco to no avail on the routing. Any help would be apprieciated.
09-13-2005 12:01 PM
Jeffery
You have not given us much to work with. The 4 modems are configured in a multilink bundle? How is the multilink interface configured? Do the 4 modems all dial into the same remote device? What kind of device is it and how is it configured?
When you tried EIGRP what happened? I gather that it worked for a short while and then stopped. Can you be more specific about what you configured and what the symptoms of the failure were?
For any kind of routing to work on your end will require a simmilar kind of configuration on the remote device (if you run EIGRP they must run EIGRP, if you have static routes they must have something to route back to you). Have you made sure that the remote device is configured in a way complementary to what you are trying?
If you can give us some specifics we may be better able to assist you in resolving this issue.
HTH
Rick
09-14-2005 04:50 AM
This is the config for the 3845 that I dial-in to.
!
version 12.3
!
ip domain name tac.XXX.XX.XXX
ip name-server XXX.XXX.XXX.XXX
ip name-server 10.40.0.1
ip address-pool local
multilink virtual-template 1
no ftp-server write-enable
async-bootp dns-server 10.40.0.2
async-bootp nbns-server 10.40.0.2
!
chat-script cisco-default ABORT ERROR "" "AT Z" OK "ATDT \T" TIMEOUT 30 \c CONNECT \c
!
interface Loopback0
ip address 10.40.10.6 255.255.255.252
!
interface GigabitEthernet0/0
description Connection To 5500
ip address 10.40.0.243 255.255.255.0
duplex auto
speed 100
media-type rj45
!
interface Virtual-Template1
ip unnumbered GigabitEthernet0/0
peer default ip address pool localpool
ppp authentication chap
ppp multilink
!
interface Group-Async1
ip unnumbered GigabitEthernet0/0
encapsulation ppp
async mode interactive
peer default ip address pool localpool
ppp multilink
group-range 1/0 1/15
!
interface Group-Async2
ip unnumbered GigabitEthernet0/0
encapsulation ppp
async mode interactive
peer default ip address pool localpool
ppp multilink
group-range 2/0 2/15
!
router eigrp 1
network 10.0.0.0
no auto-summary
!
ip local pool localpool 10.40.0.15 10.40.0.30
ip default-gateway 10.40.0.254
ip classless
ip route 0.0.0.0 0.0.0.0 10.40.0.254
ip dns server
!
control-plane
!
!
line aux 0
script dialer cisco-default
login local
modem InOut
transport input all
autoselect during-login
autoselect ppp
stopbits 1
flowcontrol hardware
line 1/0 1/15
script dialer cisco-default
login local
modem InOut
transport input all
autoselect during-login
autoselect ppp
stopbits 1
speed 115200
flowcontrol hardware
line 2/0 2/15
script dialer cisco-default
login local
modem InOut
transport input all
autoselect during-login
autoselect ppp
stopbits 1
speed 115200
flowcontrol hardware
!
scheduler allocate 20000 1000
!
end
Here is the config for the 2821 that dial-out.
version 12.3
!
hostname CENTRALTC1
!
boot-start-marker
!
interface Loopback0
ip address 10.40.10.5 255.255.255.252
!
interface Multilink1
no ip address
ppp multilink
ppp multilink group 1
!
interface GigabitEthernet0/0
description interface to Vault Van Network
ip address 10.40.3.254 255.255.255.0
duplex auto
speed auto
no mop enabled
!
interface Virtual-Template1
description Virtual Template for Mutlilink Users
ip unnumbered Loopback0
ppp authentication chap
ppp multilink
!
interface Async1/0 SAME FOR ASYNC 1/1- 1/3
no ip address
encapsulation ppp
dialer in-band
dialer pool-member 1
dialer idle-timeout 0 either
dialer-group 1
async default routing
async mode interactive
no peer default ip address
no fair-queue
pulse-time 1
ppp authentication chap callin
ppp multilink
!
interface Dialer1
ip address negotiated
encapsulation ppp
dialer pool 1
dialer remote-name 3800sipr
dialer wait-for-carrier-time 60
dialer string 739xxx1
dialer string 739xxx2
dialer string 739xxx3
dialer string 739xxx4
dialer load-threshold 1 outbound
dialer max-call 4
dialer persistent
dialer-group 1
no cdp enable
ppp authentication chap
ppp multilink
!
router eigrp 1
timers active-time disabled
network 10.0.0.0
no auto-summary
eigrp stub connected summary
!
ip default-gateway 10.40.10.6
ip classless
ip route 0.0.0.0 0.0.0.0 10.40.0.243
ip http server
!
!
access-list 101 permit icmp any any
access-list 101 permit ip any any
dialer-list 1 protocol ip list 101
!
control-plane
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line 1/0 1/15
modem InOut
transport input all
stopbits 1
speed 115200
flowcontrol hardware
!
scheduler allocate 20000 1000
end
The modems dial all the same router. When I tried EIGRP it would work as long as I didn't try to use more than one computer on the network.
Jeff
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