DI-1162 Remote Access Router
address and port. Notice that the global address will be the external IP address of the global interface.
•Port – this is a destination port number, used by TCP and UDP, to
In the above example, incoming packets with the global destination IP Address (211.11.22.2) and global destination TCP/UDP port (21) will be translated to a packet with the local destination IP Address (1.1.1.5) and local TCP/UDP port (21).
Port 21 is assigned to FTP servers. Please see Appendix D for more commonly assigned port numbers, or RFC 1700 for a more complete list.
Configure NAPT for Special Ap[plication]s
Some applications programs that are used over the Internet such as Microsoft NetMeeting, Diablo, CU See Me and Xwindows send information to a certain port number or within a specified range of port
Configuration and Management | 87 |
