Command Reference Guide

268 ● udp-helper port 3Com Router 5000 Family and Router 6000 Family
Command Reference
udp-helper port
Purpose Use the udp-helper port command to specify the UDP port number in the UDP
broadcasts to be forwarded.
Use the undo udp-helper port command to disable the system to forward the
UDP broadcasts with the specified UDP port number.
Syntax udp-helper port { port | dns | netbios-ds | netbios-ns | tacacs | tftp
| time }
undo udp-helper port { port | dns | netbios-ds | netbios-ns | tacacs |
tftp | time }
Parameters port
UDP port number in the UDP broadcasts to be
forwarded. Valid values are 1 to 65,535.
dns
Domain name service, corresponding to UDP port 53.
netbios-ds
NetBios datagram service, corresponding to UDP port
138.
netbios-ns
NetBios name service, corresponding to UDP port 137.
tacacs
TAC access control system, corresponding to UDP port
49.
tftp
Trivial file transfer protocol, corresponding to UDP port
69.
time
Time service, corresponding to UDP port 37.
Example Configure the system to forward the UDP broadcasts with the UDP port number of
DNS.
[3Com] udp-helper port dns
View This command can be used in the following views:
■ System view