Dell PowerConnect B-RX BigIron RX Series Configuration Guide v02.8.00 - Page 1296

48 Configuring OSPFv3 You must specify the parameter as a decimal value. A slash mark (/) must follow the parameter and precede the parameter. Filtering OSPFv3 routes You can filter the routes to be placed in the OSPFv3 route table by configuring distribution lists. OSPFv3 distribution lists can be applied globally or to an interface. The functionality of OSPFv3 distribution lists is similar to that of OSPFv2 distribution lists. However, unlike OSPFv2 distribution lists, which filter routes based on criteria specified in an Access Control List (ACL), OSPFv3 distribution lists can filter routes using information specified in an IPv6 prefix list or a route map. Configuration examples The following sections show examples of filtering OSPFv3 routes using prefix lists globally and for a specific interface, as well as filtering OSPFv3 routes using a route map. You can configure the device to use all three types of filtering. When you do this, filtering using route maps has higher priority over filtering using global prefix lists. Filtering using prefix lists for a specific interface has lower priority than the other two filtering methods. The example in this section assume the following routes are in the OSPFv3 route table. BigIron RX# show ipv6 ospf route Current Route count: 5 Intra: 3 Inter: 0 External: 2 (Type1 0/Type2 2) Equal-cost multi-path: 0 Destination Options Area Next Hop Router Outgoing Interface *IA 3001::/64 --------- 0.0.0.1 :: ve 10 *E2 3010::/64 --------- 0.0.0.0 fe80::2e0:52ff:fe00:10 ve 10 *IA 3015::/64 V6E---R-- 0.0.0.0 fe80::2e0:52ff:fe00:10 ve 10 *IA 3020::/64 --------- 0.0.0.0 :: ve 11 *E2 6001:5000::/64 --------- 0.0.0.0 fe80::2e0:52ff:fe00:10 ve 10 Cost Type2 Cost 0 0 10 0 11 0 10 0 10 0 Configuring an OSPFv3 distribution list using an IPv6 prefix list as input The following example illustrates how to use an IPv6 prefix list is used to filter OSPFv3 routes. To specify an IPv6 prefix list called filterOspfRoutes that denies route 3010::/64, enter the following commands. BigIron RX(config)# ipv6 prefix-list filterOspfRoutes seq 5 deny 3010::/64 BigIron RX(config)# ipv6 prefix-list filterOspfRoutes seq 7 permit ::/0 ge 1 le 128 Syntax: ipv6 prefix-list [seq ] [description ] deny | permit / [ge ] [le ] To configure a distribution list that applies the filterOspfRoutes prefix list globally. 1220 BigIron RX Series Configuration Guide 53-1002253-01