topic Migrating Public IPs, can't NAT multiple publics to one private in Network Security https://community.cisco.com/t5/network-security/migrating-public-ips-can-t-nat-multiple-publics-to-one-private/m-p/1304329#M839273 <P>I have a web server that is NAT'd to an public IP. We are migrating to a new public IP address block. We have a DNS domain pointing to this old public IP. I can't NAT the server to both IPs so when I make the DNS/NAT change it can't work on both IPs. Hence some people's whose DNS haven't udpated yet just won't get to us...I would like to somehow get the server working on both IPs...</P> Mon, 11 Mar 2019 15:52:44 GMT trippi 2019-03-11T15:52:44Z Migrating Public IPs, can't NAT multiple publics to one private https://community.cisco.com/t5/network-security/migrating-public-ips-can-t-nat-multiple-publics-to-one-private/m-p/1304329#M839273 <P>I have a web server that is NAT'd to an public IP. We are migrating to a new public IP address block. We have a DNS domain pointing to this old public IP. I can't NAT the server to both IPs so when I make the DNS/NAT change it can't work on both IPs. Hence some people's whose DNS haven't udpated yet just won't get to us...I would like to somehow get the server working on both IPs...</P> Mon, 11 Mar 2019 15:52:44 GMT https://community.cisco.com/t5/network-security/migrating-public-ips-can-t-nat-multiple-publics-to-one-private/m-p/1304329#M839273 trippi 2019-03-11T15:52:44Z Re: Migrating Public IPs, can't NAT multiple publics to one priv https://community.cisco.com/t5/network-security/migrating-public-ips-can-t-nat-multiple-publics-to-one-private/m-p/1304330#M839287 <HTML><HEAD></HEAD><BODY><P>Add a secondary IP on the server or add another NIC and NAT the new IP translation to it.</P><P></P><P>Hope that helps.</P></BODY></HTML> Wed, 08 Jul 2009 14:41:38 GMT https://community.cisco.com/t5/network-security/migrating-public-ips-can-t-nat-multiple-publics-to-one-private/m-p/1304330#M839287 Collin Clark 2009-07-08T14:41:38Z