natting problem

csc010854800 · ‎08-26-2009

i have 172.16.36.0 network on the inside network of firewall and 10.24.6.0 on the other zone with 50 level security. i would like to migrate the 172.16.36.0 into 10.24.6.0 network without disturbing the network . i have 10.24.113.0 free pool. can anybody suggest how to go for it bcz changing ip's will take time. will natting at the firewall will help ?? kindly suggest.........

yagnesh_tel · ‎08-27-2009

Hi Yogesh,

You haven't provided detail about devices you are using but in general it is possible to configure your firewall to translate packet sourced from subnet 172.16.36.0 into subnet 10.24.113.0 as it enters in your firewall. But besides doing this natting you will require to do few routing changes for this new subnet 10.24.113.0.

You will need to provide routing for translated IPs 10.24.113.0 to your routers and beyond it if you have upstream network. This is because your router and its upstream network will need route back for subnet 10.24.113.0 pointing towards your firewall.