Compatible Systems 5.4 manual IPX Routing/Bridging/Off

Chapter 3 - IPX Routing & Bridging 65

To access this dialog box, select VPN/IPX Routing in the Device View.

>IPX Routing/Bridging/Off

This set of radio buttons controls how IPX packets are handled for this interface.

•If set to IPX Routing, then IPX packets received on this interface are routed to the correct interface on the device.

•If set to IPX Bridging, then any IPX packets received on this interface are forwarded to the device’s internal bridge. This setting makes this interface a member of the “IPX Bridge Group” for this device.

ϖNote: The IPX Bridging radio button will be grayed out unless bridging has been turned on globally for the device using the Main Bridging Configu- ration Dialog Box (under Global/Bridging) and locally on this interface using the VPN-Bridging Dialog Box (under VPN/Bridging).

•If it is set to IPX Off, then any IPX packets received on this interface are discarded.

Numbered Interface

This checkbox determines whether the VPN port will have an IPX network number associated with it.

VPN tunnels are essentially point-to-point links. These links do not generally require a network number because all traffic sent from one end is, by defini- tion, destined for the other end. However, you may wish to assign an address for network tracking purposes.

Network Number

This IPX Network Number is an eight-digit hexadecimal number that uniquely identifies the network segment(s) connected to this interface. Values range from 1 to FFFFFFFE.

ϖ Note: Accidental selection of an IPX network number which is already in use on another network segment may cause hard-to-diagnose problems. You should carefully track which IPX network numbers are in use, and where they are used.

>Update Method

VPN links which are configured to provide “dial-on-demand” service will bring a connection up (i.e. dial the other end) when there are network packets which must be transferred over the link. Once a dial-on-demand connection is up, network traffic passing across the link causes the inactivity timer for the link to be reset, keeping the connection up.