Dell PowerConnect M6220 User's Guide - Page 496
OSPF Route Redistribution Configuration, IP Access Control Lists
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The OSPF Route Redistribution Configuration page contains the following fields: • Source - A protocol configured for OSPF to redistribute the routes learned through this protocol. Only source routes that have been configured for redistribution by OSPF are available. Possible values are Static, Connected, and RIP. • Metric - Sets the metric value for redistributed routes. This field displays a metric value if the source was preconfigured. The valid values are 0 to 16777214. • Metric Type - Select the OSPF metric type of redistributed routes from the drop-down menu. • Tag - Sets the tag field in routes redistributed. This field displays a tag value if the source was preconfigured, otherwise 0 is displayed. The valid values are 0 to 4294967295. • Subnets - Select whether the subnetted routes should be redistributed or not from the drop-down menu. • Distribute List - Selects the Access List that filters the routes to be redistributed by the destination protocol. Only permitted routes are redistributed. If this command refers to a non-existent access list, all routes are permitted. The drop-down menu lists the ACLs configured from the Switching→ Network Security→Access Control Lists→IP Access Control Lists pages. When used for route filtering, the only fields in an access list that get used are: - Source IP Address and netmask - Destination IP Address and netmask - Action (permit or deny) All other fields (source and destination port, precedence, tos, and so on.) are ignored. The source IP address is compared to the destination IP address of the route. The source IP netmask in the access list rule is treated as a wildcard mask, indicating which bits in the source IP address must match the destination address of the route. Note: A 1 in the mask indicates a Don't Care in the corresponding address bit. When an access list rule includes a destination IP address and netmask (an extended access list), the destination IP address is compared to the network mask of the route destination. The destination netmask in the access list serves as a wildcard mask, indicating which bits in the route's destination mask are significant for the filtering operation. • Redistribute - Enables or disables the redistribution for the selected source protocol. This field has to be enabled in order to be able to configure any of the route redistribution attributes. 494 Configuring Routing