650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/76/6E/wKioL1ZTHoSTYJNVAACd-hF_Sag358.png "title=" Qq20151123220919.png "alt=" Wkiol1zthostyjnvaacd-hf_sag358.png "/>
Experimental Steps and Requirements:
1. Configure the IP addresses of each router and use the ping command to confirm connectivity
2. Configure R2,R3 routing bidirectional re-release
R2 (config) #router OSPF 10
R2 (config-router) #redistribute EIGRP subnets
R2 (config) #router EIGRP 10
R2 (config-router) #redistribute OSPF metric 10000 100 255 1 1500
R3 (config) #router rip
R3 (config-router) #redistribute OSPF 3 metric
R3 (config) #router OSPF 10
R3 (config-router) #redistribute RIP subnets
3. Check The routing table of the R4 to confirm the routing re-release
R4#sho IP route
Gateway of LastResort is not set
10.0.0.0/30 is subnetted, 2 subnets
R 10.1.1.0 [120/3] via 172.16.1.1,00:00:13, serial1/0 by re-releasing the learned non-
R 10.1.1.4 [120/3] via 172.16.1.1,00:00:13, serial1/0 RIP Zone Routing
172.16.0.0/16 is variably subnetted, 2subnets, 2 masks
C 172.16.1.0/24 is directly connected,serial1/0
L 172.16.1.2/32 is directly connected,serial1/0
R 192.168.0.0/24 [120/3] via 172.16.1.1,00:00:13, serial1/0
R 192.168.1.0/24 [120/3] via 172.16.1.1,00:00:13, serial1/0
R 192.168.2.0/24 [120/3] via 172.16.1.1,00:00:13, serial1/0
R 192.168.3.0/24 [120/3] via 172.16.1.1,00:00:13, serial1/0
4. According to topology configuration, 192.168.0.0/24 and 192.168.2.0/24 or route-map< Span style= "font-size:11px;font-family: ' Microsoft Jacob Black ', Sans-serif;" > configuration can be either real current route filtering, or route filtering can be implemented by configuring route tags.
5. filtering using route markers is divided into two steps: one . server-side router configuration flags two . client routers are filtered based on tags
6. Configure allocation route flags on R2
R2 (config) #access-list 1 Permit 192.168.0.0 0.0.0.255 use ACLs to Mark
R2 (config) #access-list 1 Permit 192.168.2.0 0.0.0.255 Route
R2 (config) #route-map Settag Permit 10
R2 (config-route-map) #match IP address 1
R2 (config-route-map) #set tag 1 to match ACL 1 The route entry assignment is marked as 1
R2 (Config-route-map) #exit
R2 (config) #route-map Settag Permit 20
R2 (Config-route-map) #exit
R2 (config) #routerospf 10
R2 (config-router) #redistribute EIGRP subnets Route-map Settag
In Route re-release is the call route, which marks the embedding
7. on R3 , configure Route-map to route filtering via tags
R3 (config) #route-map Matchtag deny 10
R3 (config-route-map) #match tag 1 for tags marked as 1 routing, filtering processing
R3 (Config-route-map) #exit
R3 (config) #route-map matchtag Permit unconditional forwarding of other routes
R3 (Config-route-map) #exit
R3 (config) #routerrip
R3 (config-router) #redistribute OSPF metric 3 route-map Matchtag The call route map is filtered when routing is republished.
8. Check The routing table of the R4 to confirm the route filtering
R4#sho IP route
Gateway of LastResort is not set
10.0.0.0/30 is subnetted, 2 subnets
R 10.1.1.0 [120/3] via 172.16.1.1,00:00:16, serial1/0
R 10.1.1.4 [120/3] via 172.16.1.1,00:00:16, serial1/0
172.16.0.0/16 is variably subnetted, 2subnets, 2 masks
C 172.16.1.0/24 is directly connected,serial1/0
L 172.16.1.2/32 is directly connected,serial1/0
R 192.168.1.0/24 [120/3] via 172.16.1.1,00:00:16, serial1/0 R4 The routing table shows the success of routing filtering
R 192.168.3.0/24 [120/3] via 172.16.1.1,00:00:16, serial1/0
9. routing tags can be easily pre-categorized, the client only needs simple matching tags without the need to write a large number of ACLs to identify the route, through this configuration, can effectively maintain network routing updates.
Using route tags to control route filtering