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The Basic Uses of TCP/IP Route Maps

Chapter Description

Route maps are similar to access lists; they both have criteria for matching the details of certain packets and an action of permitting or denying those packets. This chapter explains the basics of Route Maps. Included are sample exercises to help you practice administration and use of Route Maps.

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Troubleshooting Exercise

  1. Given the following configuration:

             interface TokenRingl
    
             ip address 192.168.15.254 255.255.255.0
    
             ip policy route-map Ex1
    
             !
    
             access-list 1 permit 192.168.0.0 0.0.255.255
    
             access-list 101 permit host 192.168.10.5 any eq telnet
    
             !
    
             route-map Ex1 permit 5
    
             match ip address 1
    
             set ip next-hop 192.168.16.254
    
             !
    
             route-map Ex1 permit 10
    
             match ip address 101
    
             set ip next-hop 192.168.17.254
          

    The intention is to policy route all packets whose source address prefix is 192.168.0.0 to 192.168.255.255. The exception is that packets originating from the Telnet port of host 192.168.10.5 should be forwarded to 192.168.17.254. There are two errors in this configuration that are preventing the policy route from working correctly. What are they?