3Com OfficeConnect Remote 812 Set vc vc name intelligentpatoption Enable/Disable, Configuring NAT

The LAN workstation previously selected to receive all non-addressed packets from the remote workstation no longer receives them.

Intelligent PAT begins to forward all non-addressed packets sent by the remote workstation to the newly chosen “best guess” LAN workstation.

When a new communication pattern is detected, Intelligent PAT makes a new “best guess”, with the following results:

The “best guess” LAN workstation will continue to receive all non-addressed packets sent by this remote workstation until and unless a new (different) communication pattern is detected by Intelligent PAT.

Address Translation 6-23

Please also note the following:

￿￿Use￿the following command to configure Intelligent PAT:

set vc <vc name> intelligent_pat_option <Enable/Disable>

Monitoring PAT The PAT configuration is displayed when viewing the remote site configuration using the show vc command. The Network Address Translation field should indicate “port (PAT)”. The PAT Default Address field will contain 0.0.0.0 if the option is disabled, or a valid workstation IP address on the local LAN if it is enabled. The static and/or dynamic address definitions are appended to the display only when configured.

When the remote site is active, current port mappings and address mappings are displayed with the following commands, respectively:

list nat vc <vc name> port list nat vc <vc name> addr

Network Address	NAT maps one private LAN IP address (one user) to one public (WAN) IP address.
Translation (NAT)	When using NAT, multiple users can access a single application at the same time.
Configuring NAT	When￿	you create a vc using QuickVC, you are asked if you want to enable PAT.

During QuickVC setup, you can:

Accept the default choice (YES) to enable nat_option PAT.

￿Choose not to enable PAT

If you simply use the add vc <vc name> command without specifying a NAT option, the default is NAT disabled (meaning that NAT, PAT, and Super NAT are not enabled).

Enabling NAT

To enable NAT, enter the following command:

set vc <vc name> nat_option nat