Managing Network Address Translation

This section provides tips and guidelines for monitoring the functionality of Novell^® BorderManager^® 3.8 Network Address Translation (NAT) on your server.

To monitor NAT functionality, verify the following:

• To see if TCP/IP routing and connectivity is established: Test IP connectivity using the LOAD PING command at the server console.
• To see if NAT is enabled on the public interface: Check whether NAT is enabled in inetcfg.
• To see if TCP/IP is bound to more than one interface: You can check the bindings in inetcfg.
• To see if Filters are not blocking outgoing packets: You can verify the configured filters using filtcfg.
• Verify the entries in the Static NAT Table are correct.
• Load tcpip.nlm, then issue the SET TCP IP DEBUG=1 command:
  • The NAT server is receiving incoming packets.
  • The correct address translation is performed.
  • Discarded packets are not displayed on the console screen.
  • The connection is not being reset by the NAT router.
• TCP reset packets (RSTs) are not displayed on LAN traces.