Another option is to have a loopback address on the far end device with a static route on the near end device pointing at the exit interface (not the next-hop IP). That way you can telnet to the loopback address and overwrite the interface address without breaking your telnet session.
Reload in 5 as a precaution, of course. Robert Robert Smales Technical Engineer Cable&Wireless Worldwide www.cw.com > -----Original Message----- > From: cisco-nsp-boun...@puck.nether.net > [mailto:cisco-nsp-boun...@puck.nether.net]on Behalf Of Johan Grip > Sent: 18 February 2010 15:21 > To: cisco-nsp@puck.nether.net > Subject: Re: [c-nsp] Renumbering serial interfaces > > > On Thu, 18 Feb 2010 14:22:26 +0100, Steve Bertrand > <st...@ibctech.ca> > wrote: > > > On 2010.02.18 03:22, Brian Turnbow wrote: > >> Besides the reload in xx that several have mentioned you > can also put > >> secondary Ips on the link > >> Nad then cancel the primary. > >> > >> I.e. > >> interface ATM0/0.32 point-to-point > >> Ip add 2.2.2.2 255.255.255.252 secondary > >> > >> Telnet/ssh to this address using source address 2.2.2.1 > >> Then no ip add 1.1.1.1 255.255.255.252 > >> The 2.2.2.2 address becomes the priamry and you should not > loose the > >> management session. > > > > Does this work differently on a serial interface? On an fa int: > > > > route-server1(config)#int lo75 > > route-server1(config-if)#ip address 208.70.109.155 255.255.255.255 > > route-server1(config-if)#ip address 208.70.109.156 > 255.255.255.255 sec > > route-server1(config-if)#no ip address 208.70.109.155 > 255.255.255.255 > > > > Must delete secondary before deleting primary > > > > Steve > > This is how I usually do it. > > --- > Router#sh run int fa0/0 > Building configuration... > > Current configuration : 136 bytes > ! > interface FastEthernet0/0 > ip address 2.2.2.2 255.255.255.0 secondary > ip address 1.1.1.1 255.255.255.0 > duplex auto > speed auto > end > > Router#conf t > Enter configuration commands, one per line. End with CNTL/Z. > Router(config)#int fa0/0 > Router(config-if)#ip add 2.2.2.2 255.255.255.0 > Router(config-if)#^Z > Router# > Router#sh run int fa0/0 > Building configuration... > > Current configuration : 92 bytes > ! > interface FastEthernet0/0 > ip address 2.2.2.2 255.255.255.0 > duplex auto > speed auto > end > > Router# > --- > > //Johan > _______________________________________________ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > This e-mail has been scanned for viruses by the Cable & Wireless e-mail security system - powered by MessageLabs. For more information on a proactive managed e-mail security service, visit http://www.cwworldwide.com/managed-exchange The information contained in this e-mail is confidential and may also be subject to legal privilege. It is intended only for the recipient(s) named above. If you are not named above as a recipient, you must not read, copy, disclose, forward or otherwise use the information contained in this email. If you have received this e-mail in error, please notify the sender (whose contact details are above) immediately by reply e-mail and delete the message and any attachments without retaining any copies. Cable and Wireless plc Registered in England and Wales.Company Number 238525 Registered office: 3rd Floor, 26 Red Lion Square, London WC1R 4HQ _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/