3com S7906E Guide De Référence

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undo udp-helper port { port-number | dns | netbios-ds | netbios-ns | tacacs | tftp | time } 
View 
System view 
Default 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.  
Description 
Use the udp-helper port command to enable the forwarding of packets with the specified UDP port 
number. 
Use the undo udp-helper port command to remove the configured UDP port numbers. 
By default, no UDP port number is specified.  
The specified UDP port numbers will all 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 
Syntax 
udp-helper server ip-address 
undo udp-helper server [ ip-address ] 
View 
Interface view 
Default Level 
2: System level