Displaying And Debugging Udp Helper Configuration; Udp Helper Configuration Example - 3Com Switch 4500 26-Port Configuration Manual

98 C 5: N
HAPTER ETWORK
Displaying and
Debugging UDP Helper
Configuration
UDP Helper
Configuration Example
P O
ROTOCOL PERATION
For example, the
udp-helper port dns
The default UDP ports are not displayed when using the
■
current-configuration
function is disabled.
Configuring the Relay Destination Server for Broadcast Packet
You can configure up to 20 relay destination servers for a VLAN interface. If a
VLAN interface is configured with relay destination servers and UDP Helper
function is enabled on the VLAN interface, then the broadcast packets of a
designated UDP port received at the VLAN interface will be unicasted to the
destination server.
Perform the following configuration in VLAN Interface View.
Table 95 Configuring the Relay Destination Server for Broadcast Packet
Operation
Configure relay destination server for
broadcast packet
Delete relay destination server for
broadcast packet
Note that:
The
■ undo udp-helper server
destination servers configured on the interface.
By default, no relay destination server for UDP broadcast packets is configured.
■
After the above configuration, enter the
the running of the UDP Helper destination server, and to verify the effect of the
configuration. Enter the
configuration.
Table 96 Displaying and Debugging UDP Helper Configuration
Operation
Display the destination server
corresponding to VLAN
interface
Enable UDP Helper
debugging
Disable UDP Helper
debugging
Networking Requirement
The IP address of VLAN interface 2 on the Switch is 10.110.1.1, which is
connected with network segment 10.110.0.0. Set to relay-forward the broadcast
packets with destination IP of all 1s and destination UDP port 55 in the network
segment 10.110.0.0 to the destination server 202.38.1.2.
command is equivalent to the
udp-helper port 53
command in function.
command. But its ID is displayed after its relay
Command
udp-helper server ip_address
undo udp-helper server [ip_address ]
command (without any parameter) deletes all
display
command in User View to debug UDP Helper
debugging
Command
display udp-helper server [ interface
vlan-interface vlan_id ]
debugging udp-helper { event | packet [ receive |
send ] }
undo debugging udp-helper { event | packet [
receive | send ] }
display
command in any view to display