R3303-HP HSR6800 Routers Layer 3 - IP Services Command Reference

Table Of Contents
176
Default
No UDP port number is specified.
Views
System view
Default command level
2: System level
Parameters
port-number: UDP port number with which packets need to be forwarded, in the range of 1 to 65535
(except 67 and 68).
dns: Forwards DNS data packets. The corresponding UDP port number is 53.
netbios-ds: Forwards NetBIOS data packets. The corresponding UDP port number is 138.
netbios-ns: Forwards NetBIOS name service data packets. The corresponding UDP port number is 137.
tacacs: Forwards terminal access controller access control system (TACACS) data packet. The
corresponding UDP port number is 49.
tftp: Forwards TFTP data packets. The corresponding UDP port number is 69.
time: Forwards time service data packets. The corresponding UDP port number is 37.
Usage guidelines
You can configure up to 256 UDP ports on a device.
All of the specified UDP port numbers will be removed if UDP helper is disabled.
Examples
# Forward broadcast packets with the UDP destination port number 100.
<Sysname> system-view
[Sysname] udp-helper port 100
udp-helper server
Use udp-helper server to specify a destination server for UDP helper.
Use undo udp-helper server to remove a destination server for UDP helper.
Syntax
udp-helper server vpn-instance vpn-instance-name ip-address
undo udp-helper server [ vpn-instance vpn-instance-name | ip-address ]
Default
No destination server is specified.
Views
Interface view
Default command level
2: System level