PLANET WGSW-52040 - Manual (Page 460)

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28.2.4 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.
28.2.5 show ip forward-protocol
Command:
show ip forward-protocol
Function:
Show the configured port ID of the protocol which support the forwarding of broadcast packets, it means the port ID
for forwarding DHCP packets.
Command mode:
Admin and configuration mode
Example:
Switch#show ip forward-protocol