09-01-2002 03:36 PM - edited 03-02-2019 01:03 AM
Hello all,
I know that this should be a straight forward thing, but there is some very bizzare behavior going on with a couple of 2600's that I am trying to get MPP working properly. Both routers are identical.
BTW - If I just use straight PPP, everything is beautiful.
Router A can't do TCP to router B, however, Router B can TCP to Router A.
I can ICMP to both of them. Router is driectly connected to the Internet & router B is at a remote location.
Router A Config:
Building configuration...
Current configuration:
!
version 12.0
service config
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname !
enable secret
enable password wordpass
!
!
!
!
!
ip subnet-zero
!
no ip bootp server
!
!
!
process-max-time 200
!
interface Multilink1
ip address 192.168.1.17 255.255.255.240
no ip directed-broadcast
no cdp enable
ppp multilink
multilink load-threshold 2 either
multilink-group 1
!
interface Ethernet0/0
no ip address
no ip directed-broadcast
no ip mroute-cache
shutdown
no cdp enable
!
interface Serial0/0
no ip address
ip directed-broadcast
encapsulation ppp
no ip mroute-cache
no fair-queue
service-module t1 clock source internal
ppp multilink
multilink-group 1
!
interface Serial0/1
no ip address
no ip directed-broadcast
encapsulation ppp
no ip mroute-cache
no fair-queue
service-module t1 clock source internal
ppp multilink
multilink-group 1
!
interface FastEthernet1/0
ip address 209.17.93.17 255.255.255.240 secondary
ip address 209.17.95.129 255.255.255.0
no ip directed-broadcast
no cdp enable
!
ip classless
ip route 0.0.0.0 0.0.0.0 209.17.95.1
ip route 209.17.93.32 255.255.255.240 Multilink1
ip route 209.17.95.144 255.255.255.240 Multilink1
no ip http server
!
snmp-server community public RO
!
line con 0
exec-timeout 0 0
transport input none
line aux 0
line vty 0 4
password login
!
!
no scheduler allocate
end
Router B
Building configuration...
Current configuration:
!
version 12.0
service config
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname !
enable secret
enable password wordpass
!
!
!
!
!
ip subnet-zero
!
no ip bootp server
!
!
!
process-max-time 200
!
interface Multilink1
ip address 192.168.1.33 255.255.255.240
ip directed-broadcast
ip nat outside
no cdp enable
ppp multilink
multilink load-threshold 2 either
multilink-group 1
!
interface Serial0/0
ip unnumbered Multilink1
ip directed-broadcast
encapsulation ppp
no ip mroute-cache
no fair-queue
ppp multilink
multilink-group 1
!
interface Serial0/1
ip unnumbered Multilink1
ip directed-broadcast
encapsulation ppp
no ip mroute-cache
no fair-queue
ppp multilink
multilink-group 1
!
interface FastEthernet1/0
ip address 209.17.93.17 255.255.255.240 secondary
ip address 209.17.95.129 255.255.255.0
no ip directed-broadcast
no cdp enable
!
ip route 0.0.0.0 0.0.0.0 Multilink 1
Any clues to what I am doing wrong would be helpful.
Thansk
Rod
09-10-2002 05:09 AM
Since there has been no response to your post, it appears to be either too complex or too rare an issue for other forum members to assist you. If you don't get a suitable response to your post, you may wish to review our resources at the online Technical Assistance Center (http://www.cisco.com/tac) or speak with a TAC engineer. You can open a TAC case online at http://www.cisco.com/tac/caseopen
If anyone else in the forum has some advice, please reply to this thread.
Thank you for posting.
12-06-2002 01:36 PM
We had the same issues among others with MPP, between two 2600's and 2600 and 6500. It seems that when a multilink is created on a router and then removed or deleted, it is not really gone. If you then recreate it you have problems. Sometimes if you completely remove MPP configs, reboot routers and then recreate MPP all works fine.
I recommend you open a TAC case as we also had some IOS version issues that needed to be corrected before we were able to completely solve this.
12-06-2002 01:50 PM
I dealt with this exact scenario. Instead I reconfigued the T1 controllers so that dumped all my serial interfaces. Doing that I was unable to add any interfaces to multilink-group 1 until I bounced the router.
12-06-2002 01:48 PM
It appears that your multilink1 interfaces between the routers are not in the same subnet network. You have 192.168.1.17/28 on router A and 192.168.1.33/28 on router B. These are not within the same subnet. 192.168.1.30/28 is last usable host IP address in the subnet on router A. You are using host IP address .33 on router B. Change the router B multilink IP address to something within router A's subnet and you should be good to go.
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