I'm in the process of converting my cgNAT solution from an ASA5555 to an ASR1002. I can do the basic "ip nat inside list NAT interface interface overload" and it works fine but I'd like to know if its possible to keep the solution I had with the ASA. On the ASA I would take a private block and NAT it to a single public IP. For example I have a /25 for my publics that I had 1 as the "WAN" of the ASA and I used the rest as the NAT solution.
Right now I've tested out the config provided here: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipaddr_nat/configuration/xe-16-7/nat-xe-16-7-book/iadnat-cgn.html however, either I'm not understanding how they want the dynamic NAT to be configured or I'm just not configuring it right.
What I would like to do is have the NAT work like it did on the ASA, which was, lets say 1.1.1.1 is the gateway then 1.1.1.2 would have been the Port-channel on the ASA and I had 1.1.1.3 through 1.1.1.127 to use for NAT. I would take 10.10.10.0/24 and NAT it to 1.1.1.3 and 10.10.11.0/24 and NAT it 1.1.1.4, etc. Does this functionality exist?
Any suggestions would be appreciated. Thank!
