Changing interface address on 1601 - aliases ? 1

[nego78]

Hi
i've got cisco 1601 as my router. It's been setup to work with support of frame relay protocol.
So i have 2 interfaces:
one ethernet, second Serial 0 and subinterface Serial 0.1
Now i've got a new set of ip addresses and i'd like to change it, but i can't change ii all at once - my old ip's must work for few days (dns etc)

How can i add ip aliases to this interfaces:

interface Ethernet0
description LAN
ip address aa.bb.cc.dd 255.255.255.252
!
interface Serial0
description INTERNET
no ip address
encapsulation frame-relay IETF
no fair-queue
frame-relay lmi-type ansi
!
interface Serial0.1 point-to-point
ip address aa2.bb2.cc2.dd2 255.255.255.252
frame-relay interface-dlci 99 IETF
!


thank you in advance

gry online

 

[nego78]

i did it

conf term
int Ethernet 0
ip address mynewip mynewmask secondary
end
write


should i change netmask at Serial0.1 ?
now it ends 252 but my network should be 240


gry online

 

[lgarner]

I doubt it. P-P links usually use .252 since they only require 2 addresses. The netmask on the serial link is unrelated to the ethernet side; that's why it's specified in each place.

 

[nego78]

Thank you Igarner

gry online