| | draft-ford-midcom-p2p-03.txt |
 | | Port preservation is not important Some NATs, when establishing a new TCP or UDP session, attempt to assign the same public port number as the corresponding private port number, if that port number happens to be available. |
 | | Cone NAT The fundamental property of Cone NAT is that it reuses port binding assigned to a private host endpoint (identified by the combination of private IP address and protocol specific port number) for all sessions initiated by the private host from the same endpoint, while the port binding is alive. |
 | | NAT A has assigned TCP port 62000, at its own public IP address 155.99.25.11, to serve as the temporary public endpoint address for A's session with S: therefore, server S believes that client A is at IP address 155.99.25.11 using port 62000. |
| www.brynosaurus.com /pub/net/draft-ford-midcom-p2p-03.txt (315 words) |