Alcatel-Lucent 6850-48 参考指南

DHCP Relay Commands

OmniSwitch CLI Reference Guide

page 36-47

Enables or disables UDP port relay for BOOTP/DHCP and generic UDP service ports (i.e., NBNS/NBDD, 
other well-known UDP ports, and user-defined service ports that are not well-known). 

ip udp relay {BOOTP | NBDD | NBNSNBDD | DNS | TACACS | TFTP | NTP | port [name]}

no ip udp relay {BOOTP | NBDD | NBNSNBDD | DNS | TACACS | TFTP | NTP | port}

BOOTP/DHCP well-known ports 67/68.

NBDD well-known port 138.

NBNS/NBDD well-known ports 137/138.

DNS well-known port 53.

TACACS well-known port 65.

TFTP well-known port 69.

NTP well-known port 123.

Any number that is not a well-known port number.

Text string description up to 30 characters. 

By default, relay is enabled on the BOOTP/DHCP well-known ports.

OmniSwitch 6400, 6850, 6855, 9000, 9000E

• Use the no form of this command to disable UDP Relay for the specified service port.

• Only use the port parameter to specify service port numbers that are not well known. For example, do 

not specify port 53 as it is the well-known port number for DNS. Instead, use the DNS parameter to 
enable relay for port 53.

• The name parameter is only used with the port parameter and provides a user-defined description to 

identify the not well-known port service. 

• When entering a name for a user-defined service, quotes are required around ambiguous characters, 

such as hex characters, spaces, etc, so they are interpreted as text. For example, the name “A UDP 
Protocol” requires quotes because of the spaces between the words. 

User Service Other#