Dell PowerConnect FCS624S Configuration Guide - Page 959

Displaying RIP filters 28 NOTE By default, routes that do not match a route filter are learned or advertised. To prevent a route from being learned or advertised, you must configure a filter to deny the route. To configure RIP filters, enter commands such as the following. PowerConnect(config-rip-router)#filter 1 permit 192.53.4.1 255.255.255.0 PowerConnect(config-rip-router)#filter 2 permit 192.53.5.1 255.255.255.0 PowerConnect(config-rip-router)#filter 3 permit 192.53.6.1 255.255.255.0 PowerConnect(config-rip-router)#filter 4 deny 192.53.7.1 255.255.255.0 These commands explicitly permit RIP routes to three networks, and deny the route to one network. Because the default action is permit, all other routes (routes not explicitly permitted or denied by the filters) can be learned or advertised. Syntax: filter permit | deny | any | any [log] Applying a RIP route filter to an interface Once you define RIP route filters, you must assign them to individual interfaces. The filters do not take effect until you apply them to interfaces. When you apply a RIP route filter, you also specify whether the filter applies to learned routes or advertised routes: • Out filters apply to routes the Layer 3 Switch advertises to its neighbor on the interface. • In filters apply to routes the Layer 3 Switch learns from its neighbor on the interface. To apply RIP route filters to an interface, enter commands such as the following. PowerConnect(config)#interface ethernet 0/1/2 PowerConnect(config-if-0/1/2)#ip rip filter-group in 2 3 4 These commands apply RIP route filters 2, 3, and 4 to all routes learned from the RIP neighbor on port 1/2. Syntax: [no] ip rip filter-group in | out Displaying RIP filters To display the RIP filters configured on the router, enter the following command at any CLI level. PowerConnect#show ip rip Index 1 Index 1 RIP Route Filter Table Action Route IP Address Subnet Mask deny any any RIP Neighbor Filter Table Action Neighbor IP Address permit any Syntax: show ip rip Table 173 describes the information displayed by the show ip rip command. PowerConnect B-Series FCX Configuration Guide 917 53-1002266-01