3com WX3000 Manuel D’Utilisation

 

1-3 

Display the UDP broadcast relay 
forwarding information of a specified 
VLAN interface on the device 

display udp-helper server 
[ interface vlan-interface vlan-id ] 

Available in any view

Clear statistics about packets 
forwarded by UDP Helper 

reset udp-helper packet 

Available in user view

 

As shown in 

, PC A resides on network segment 192.168.1.0/24 and PC B on 

192.168.10.0/24; they are connected through Switch A and are routable to each other. It is required to 

configure UDP Helper on Switch A, so that PC A can find PC B through computer search. (Broadcasts 

with UDP port 137 are used for searching.) 

Figure 1-1 Network diagram for UDP Helper configuration 

 

 

# Enable UDP Helper on Switch A. 

<SwitchA> system-view 

[SwitchA] udp-helper enable 

# Configure Switch A to forward broadcasts containing the destination UDP port number 137. (By 

default, the device enabled with UDP Helper forwards the broadcasts containing the destination UDP 

port number 137.) 

[SwitchA] udp-helper port 137 

# Specify the destination server IP address on Vlan-interface 1. 

[SwitchA] interface vlan-interface 1 

[SwitchA-Vlan-interface1] udp-helper server 192.168.10.2