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Configuration Example 2

The following example demonstrates how to use a route map and an access list to redistribute static routes to IS-IS.

Configure three static routes.host1(config)#ip route 20.20.20.0 255.255.255.0 192.168.1.0 host1(config)#ip route 20.20.21.0 255.255.255.0 192.168.2.0 host1(config)#ip route 20.21.0.0 255.255.255.0 192.168.30.0
Configure an access list, fltra, that filters routes 20.20.20.0/24 and 20.20.21.0/24.host1(config)#access-list fltra permit 20.20.0.0 0.0.255.255
Configure route map 1 to match access list fltra, and apply an internal metric type.host1(config)#route-map 1 host1(config-route-map)#match ip address fltra host1(config-route-map)#set metric-type internal
Configure redistribution into IS-IS of the static routes with route map 1.host1(config)#router isis testnet host1(config-router)#redistribute static route-map 1

Verify the effect of the redistribution (the two static routes matching the route map are redistributed as level 2 internal routes).

host1#show isis database detail l2
IS-IS Level-2 Link State Database
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL 
0000.0000.6666.00-00 0x000002B7   0x3E1F 1198 0/0/0
  Area Address: 47.0005.80FF.F800.0000.0001.0001
  NLPID:       0xcc
  IP Address:  192.168.1.105
  Metric: 10 IS 0000.0000.6666.01
  Metric: 10 IS 0000.0000.3333.00
  Metric: 10 IS 0000.0000.7777.00 
Metric: 30 IP 20.20.20.0 255.255.255.0
Metric: 30 IP 20.20.21.0 255.255.255.0

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