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CCIE实验室考试指南(2)

发布时间:2006-06-28 06:33     点击:
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  Lab 02 -

  Policy Routing

  The following scenario refers to the diagram below.

  此主题相关图片如下: 

 





  Scenario:

  All routers are configured in a single OSPF area.

  Router_C, based on the cost metric for OSPF will send all packets with

  a destination network address of 10.4.0.0 out the E0 interface.

  Problem:

  Have all packets destined for network 10.4.0.0 exit the Serial 0

  Router_C.

  Router_C#sh ip route

  Codes: C - connected, S - static,

  I - IGRP,

  R - RIP, M - mobile, B - BGP,

  D - EIGRP,

  EX - EIGRP external, O - OSPF,

  IA - OSPF inter area,

  N1 - OSPF NSSA external type 1,

  N2 - OSPF NSSA external type 2,

  E1 - OSPF external type 1,

  E2 - OSPF external type 2, E - EGP,

  i - IS-IS,

  L1 - IS-IS level-1,

  L2 - IS-IS level-2,

  * - candidate default,

  U - per-user static route,

  o - ODR

  Gateway of last resort is not set

  10.0.0.0/16 is subnetted, 3 subnets

  C 10.2.0.0 is directly connected,

  Serial0

  C 10.3.0.0 is directly connected,

  Ethernet0

  O 10.4.0.0 [110/74] via 10.3.0.1,

  00:00:13, Ethernet0

  Solution:

  Policy routing will allow you to configure a route map. The route map

  will be used by the router in lieu of destination routing.

  In this scenario the best route to the destination network 10.4.0.0 is

  to go ethernet. We want to force the route to take the serial

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