[c-nsp] Renumbering serial interfaces

[Jon Lewis]

On Thu, 18 Feb 2010, Steve Bertrand wrote:

>> 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

Instead of removing the primary IP of the interface, try just changing it. 
It'll let you do that.  I've seen people break things by doing that by 
accident when they meant to add another secondary address.

----------------------------------------------------------------------
  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
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