Product guide

IP Routing Features
Configuring DHCP Relay
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Configuring a Helper Address
At the VLAN configuration CLI context level, enter the commands to add the
DHCP server’s IP address to the VLANs list. For example, to configure a helper
address for VLAN 1, enter these commands:
ProCurve(config)# vlan 1
ProCurve(vlan-1)# ip helper-address < ip-addr >
To remove the DHCP server helper address, enter this command:
ProCurve(vlan-1)# no ip helper-address < ip-addr >
You can configure up to 256 IP helper addresses in the switch.
For the Series 5300xl switches only, software release E.08.07 or greater is
required to support 256 IP helper addresses. Earlier releases support only 128
IP helper addresses. All other switch models covered by this guide allow 256
IP helper addresses, regardless of the software version running on the switch.
Viewing the Current DHCP Relay Configuration
Determining the DHCP Relay Setting. Use show config (or show running
for the running-config file) to list the current DHCP Relay setting. Note that
because DHCP Relay is enabled in the default configuration, it does not appear
in these listings unless it is disabled.
Non-Default DHCP-Relay Setting
Figure 11-35.Example of Startup-Config Listing with DHCP-Relay Disabled
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