Instruction Manual

IP Routing Features
Configuring DHCP Relay
To reset the default function which increases the hop count in each DHCP
request forwarded to a DHCP server, enter the following command:
ProCurve(config)# dhcp-relay hop-count-increment
Operating Notes
■ By default, the DHCP relay agent increases the hop count in each DHCP
request by one. You must enter the no dhcp-relay hop-count-increment
command to disable this function.
■ You enter the no dhcp-relay hop-count-increment command at the global
configuration level. The command is applied to all interfaces on the
routing switch that are configured to forward DHCP requests.
■ This DHCP Relay enhancement only applies to DHCP requests forwarded
to a DHCP server. The server does not change the hop count included in
the DHCP response sent to DHCP clients.
■ When you disable or re-enable the DHCP hop count function, no other
behavior of the relay agent is affected.
■ You can configure the DHCP Relay hop count function only from the CLI;
you cannot configure this software feature from the drop-down menus.
■ A new MIB variable, hpDhcpRelayHopCount, is introduced to support
SNMP management of the hop count increment by the DHCP relay agent
in a switch.
Verifying the DHCP Relay Configuration
Displaying the DHCP Relay Setting
Use the show config command (or show running for the running-config file) to
display the current DHCP Relay setting.
Note The DHCP relay and hop count increment settings appear in the show config
command output only if the non-default values are configured. For more
information about the DHCP hop count increment, see “Hop Count in DHCP
Requests” on page 5-131.
5-132