3Com Switch 8807, Configuration Manual

Page: 735 / 883

Displaying UDP Helper 735
Note that:
1 You cannot specify the UDP ports before the function of forwarding UDP
broadcast packets is enabled. Otherwise, the system prompts error.
2 The dns | netbios-ds | netbios-ns | tacacs | tftp | time keyword refers to six
default UDP ports. You can specify a default UDP port in one of the two following
ways:
■
Specifying the port number.
■
Specifying the keyword.
For example, the udp-helper port 53 command speicifies the same port as the
udp-helper port dns command.
3 The display current-configuration command does not display the default port
numbers. A default port number is displayed when the function of forwarding
UDP broadcast packets is disabled on this port.
4 If the undo udp-helper server command is executed without any parameters, all
destination servers configured on the VLAN interface are removed.
Displaying UDP Helper
After completing the configuration above, you can execute the display command
in any view to verify the configuration by checking the displayed information.
Table 676 Display UDP helper
Operation Command
Display the information of the destination
servers corresponding to the VLAN interface display udp-helper { server [ interface
vlan-interface vlan-id ] | port }