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    Configuring Subscriber Management with an External DHCP Server

    To configure subscriber management for clients by using an external DHCP server, as in shown in the DHCP External Server figure in Subscriber Management Procedure Overview, use the following procedure on E Series routers:

    1. Enable the DHCP external server application.
      host1(config)#service dhcp-external
    2. Specify each DHCP server for which to monitor traffic. You can specify a maximum of four DHCP servers.
      host1(config)#ip dhcp-external server-address 10.10.10.1
    3. Configure a default policy for subscribers, using a previously configured classifier group.
      host1(config)#ip policy-list filterAll host1(config-policy-list)#classifier-group filterGroupA host1(config-policy-list-classifier-group)#filter host1(config-policy-list-classifier-group)#exit host1(config-policy-list)#exit
    4. Configure a dynamic subscriber interface policy.
      host1(config)#profile disableUser host1(config-profile)#ip policy input filterAll host1(config-profile)#ip policy output filterAll host1(config-profile)#exit
    5. Configure a route map.
      host1(config)#route-map routeMapWest21 host1(config-route-map)#set ip interface-profile disableUser host1(config-route-map)#exit
    6. Enable autoconfiguration mode.
      host1(config)#interface gigabitEthernet 12/0 host1(config-if)#ip address 192.168.1.1 255.255.255.0 host1(config-if)#ip auto-configure ip-subscriber include-primary host1(config-if)#ip route-map ip-subscriber routeMapWest21 host1(config-if)#ip auto-detect ip-subscriber host1(config-profile)#exit

    Published: 2014-08-20