You will need to change the following types of configuration with this:
the interface
the default route
Destination and source NAT using ip addresses specifically in this range (interface NAT can stay the same)
any eBGP sessions configured
You will need to change the following types of configuration with this:
the interface
the default route
Destination and source NAT using ip addresses specifically in this range (interface NAT can stay the same)
any eBGP sessions configured