MultinLink Question

Static, RIP, EIGRP, OSPF, BGP, IBGP, IS-IS and any other routing.
Guest

MultinLink Question

Post by Guest » Sun Jan 09, 2011 2:10 pm


Hello All:I need a little help regarding multilink. I wasn't involved in the setup don't know too much about it. But I need to change which T1's IP block is being used by the Multilink group. Here is my cuurent config. How do I go abut doing this. Thanksinterface Multilink1 description MUTILINK ip address 64.148.226.86 255.255.255.252 ip access-group 100 in ip verify unicast reverse-path no ip redirects no ip unreachables no ip proxy-arp ip nat outside ip route-cache flow no cdp enable ppp multilink ppp multilink fragment disable ppp multilink group 1 hold-queue 300 in!interface FastEthernet0/0 description PRODUCTION ip address 10.0.2.1 255.255.255.0 ip verify unicast reverse-path ip nat inside ip route-cache same-interface no ip mroute-cache duplex auto speed auto hold-queue 450 in!interface FastEthernet0/1 description CORP LINK ip address 10.0.4.1 255.255.255.0 ip verify unicast reverse-path ip route-cache same-interface duplex auto speed auto!interface FastEthernet1/0 no ip address duplex auto speed auto!interface Serial1/0 description 64.148.230.1/24 no ip address ip verify unicast reverse-path no ip redirects no ip proxy-arp encapsulation ppp no fair-queue no cdp enable ppp multilink ppp multilink group 1!interface FastEthernet1/1 no ip address shutdown duplex auto speed auto!interface Serial1/1 description 64.148.225.1/26 no ip address no ip redirects no ip proxy-arp encapsulation ppp no fair-queue no cdp enable ppp multilink ppp multilink group 1!interface Serial1/2 description 64.148.224.129/26 no ip address ip verify unicast reverse-path no ip proxy-arp encapsulation ppp no fair-queue no cdp enable ppp multilink ppp multilink group 1Thanks in advance

Guest

Re:MultinLink Question

Post by Guest » Sun Jan 09, 2011 3:09 pm


All you need to change is the IP address of the multilink interface. Also note that when you do this your multilink interface which is your NAT outside interface will drop all connections for a moment, until you configure the new IP address. Are you using PAT or do you use a range of IP address in a pool from the existing subnet allocated to you ? If yes, then you will also need to reconfigure the pool used for NAT to the new IP block.To change Ip address of interface go to global config mode (Router(config)#) and execute following commands..int multilink 1ip add <new ip> <new mask>

Guest

Re:MultinLink Question

Post by Guest » Sun Jan 09, 2011 3:20 pm


That's easy enough, thanks for your help

Guest

Re:MultinLink Question

Post by Guest » Sun Jan 09, 2011 3:28 pm


Dont forget to reconfigure NAT pool if using NAT instead of PAT>...

Post Reply