IP Helper/DHCP Relay Commands 949
• The protocol field in the IP header must be UDP (17).
• The destination UDP port must match a configured relay entry.
DHCP relay cannot be enabled and disabled globally. IP helper can be
enabled or disabled globally. Enabling IP helper enables DHCP relay.
Commands in this Chapter
This chapter explains the following commands:
bootpdhcprelay maxhopcount
Use the bootpdhcprelay maxhopcount command in Global Configuration
mode to configure the maximum allowable relay agent hops for BootP/DHCP
Relay on the system. Use the no form of the command to set the maximum
hop count to the default value.
Syntax
bootpdhcprelay maxhopcount
integer
no bootpdhcprelay maxhopcount
•
integer
— Maximum allowable relay agent hops for BootP/DHCP Relay on
the system. (Range: 1-16)
Default Configuration
The default
integer
configuration is 4.
bootpdhcprelay maxhopcount ip helper-address (global configuration)
bootpdhcprelay minwaittime ip helper-address (interface
configuration)
clear ip helper statistics ip helper enable
ip dhcp relay information check show ip helper-address
ip dhcp relay information check-reply show ip dhcp relay
ip dhcp relay information option show ip helper statistics
ip dhcp relay information option-insert
2CSPC4.XCT-SWUM2XX1.book Page 949 Monday, October 3, 2011 11:05 AM