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Parameter: bootps forwarding UDP port as 67 DHCP broadcast packets.
Default: Not forward UPD broadcast packets by default.
Command mode: Global Mode
Usage Guide: The forwarding destination address is set in the ―ip helper-address‖
command and described later.
Example: Setting DHCP packets to be forwarded to 192.168.1.5.
Switch(config)#ip forward-protocol udp boots
Switch(config)#interface vlan 1
Switch(Config-if-Vlan1)#ip helper-address 192.168.1.5
15.2.3 ip helper-address
Command: ip helper-address <ip-address>
no ip helper-address <ip-address>
Function: Specifies the destination address for the DHCP relay to forward UDP packets.
The ―no ip helper-address <ip-address>‖ command cancels the setting.
Default: None.
Command mode: Interface Configuration Mode
Usage Guide: The DHCP relay forwarding server address corresponds to the port
forwarding UDP, i.e. DHCP relay forwards corresponding UDP packets only to the
corresponding server instead of all UDP packets to all servers. When this command is run
after ―ip forward-protocol udp <port>‖ command, the forwarding address configured by
this command receives the UDP packets from <port>. The combination of ―ip
forward-protocol udp <port>‖ command and this command should be used for
configuration.