ASR 1k CGNAT POOL

[divadko]

Hi all,

i want to ask, what else i need to configure to have working solution for ip nat pool on my ASR1k.

nat mode is cgn

I set up an ip nat pool 178.2.2.150 178.2.2.160 netmask 255.255.255.128

Is it needed to set ip all other IPs manuly also to WAN interface?

At the moment i have set only 178.2.2.150

Is it needed to add each other from the pool as secondary ip to wan interface?

sho ip nat pool name WAN_TEST

NAT Pool Statistics

Pool name WAN_TEST, id 1
Assigned Available
Addresses 0 4
UDP Low Ports 0 2048
TCP Low Ports 0 2048
UDP High Ports 0 258048
TCP High Ports 0 258048

(Low ports are less than 1024. High ports are greater than or equal to 1024.)

thanx

sincerelly

dave

Or it will use it automaticly?

[divadko]

Ok, so i found that this config isnt ok:

ip nat inside source list 1 interface Port-channel20.900 overload

I tryed to change it to: ip nat inside source list 1 pool WAN_TEST 

i i got an error :

Cannot change mapping's source type, or the mapping already exists; remove mapping first to make change.

If i try to do: no ip nat inside source list 1 interface Port-channel20.900 overload

i got another error :

Dynamic mapping in use, cannot remove

How to solve it and change it for pooling?

[Giuseppe Larosa · Accepted solution]

Hello @divadko ,

in privilege mode:

clear ip nat translations *

then immediately try

conf t

no ip nat inside source list 1 interface Port-channel20.900 overload

Hope to help

Giuseppe

[divadko]

Thank you, i havent an "overload" at the end of the line... it works