Dell PowerConnect M8024 User Manual page 496

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