ip dhcp smart-relay
2010-04-01 11:20
Setting the Gateway Address of the DHCP Broadcast to a Secondary Address Using Smart Relay Agent ForwardingPerform this task to configure smart relay agent forwarding. ip dhcp smart-relay ip dhcp smart-relay 我的理解：接口下有两个地址情况下，如果使用了ip dhcp smart-relay,首先使用primary的地址，如果连续三次发送DHCP request都没有收到DHCP offer的回应，就使用secondary. 假设没有ip dhcp smart-relay，那就一直用primary地址，而不会用secondary地址转发UDP广播包。 如果所有接口下只有一个地址，ip dhcp smart-relay没有意义。 This functionality is useful when the DHCP server cannot be configured to use secondary pools. SUMMARY STEPS1. enable 2. configure terminal 3. ip dhcp smart-relay |