204 | Chapter 12 - IPX Filtering |
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ϖNote: In rules where expressions are used, the syntax checker requires a space before and a space after the expression operator(s).
IPX Route Filter Rule Options
Filter rules can optionally include the following parameter. When used, the options must be inserted after the required part of the rule, but before any modifiers.
The direction is specified with in, out, or both. If no direction is specified, both is assumed.
•Filter rules specifying in are only applied to routing information coming into the device.
•Filter rules specifying out are only applied to routing information being sent from the device.
•Filter rules specifying both are applied to routing information in both directions.
IPX Route Filter Rule Modifiers
The source address, destination address, source interface or destination inter- face can be specified using the from and to modifiers. These keywords modify the global nature of a RIP filter rule.
•from <IPX address> or from <interface> This modifier tells the device to apply the rule only to routes coming from a specified IPX address, or interface (e.g. Ethernet 0, WAN 1, etc.).
The IPX address parameter is specified as a hexadecimal network number and node number separated by a dash (e.g.
•to <IPX address> or to <interface> This modifier tells the device to apply the rule only to routes being sent to a specified IP address (where the address is in the same format as discussed above), or interface (e.g. Ethernet 0, WAN 1, etc.).
Filter rules can also optionally be set to modify some RIP information as it is handled by the device.
•metricin <increment value> This modifier tells the device to increment the metric on incoming routes which match the filter rule. The metric is the number of routers on a route. By increasing or decreasing the metric, a particular route can be made more or less attractive. The value to incre- ment by can be from 1 to 15.
