558 Configuring Routing
Figure 9-26. Add Helper IP Address
3.
Select the interface to use for the relay.
4.
Select a UDP Destination port name from the menu or enter the UDP Destination Port ID. Select the
Default Set to configure for the relay entry for the default set of protocols.
NOTE: If the DefaultSet option is specified, the device by default forwards UDP Broadcast packets for the
following services: IEN-116 Name Service (port 42), DNS (port 53), NetBIOS Name Server (port 137), NetBIOS
Datagram Server (port 138), TACACS Server (Port 49), and Time Service (port 37).
5.
Choose whether to discard (True) or keep (False)
packets arriving on the given interface with the
given destination UDP port.
6.
Enter the IP address of the server to which the packets with the given UDP Destination Port will be
relayed.
7.
Click
Apply Changes
.
The UDP/Helper Relay is added to the interface and the device is updated.
Configuring IP Helper Interfaces Using CLI Commands
For information about the CLI commands that perform this function, see the following chapter in the
CLI Reference Guide:
• IP Helper Commands
The following table summarizes the equivalent CLI commands for this feature.
IP Helper Statistics
Use the IP Helper Statistics page to view UDP Relay Statistics for the switch.
To display the page, click Routing
→
IP Helper
→
Statistics in the tree view.
Table 9-23. IP Helper Interface Commands
CLI Command Description
ip helper-address (interface configuration) Configures the relay of certain UDP broadcast packets received on a
specific interface.
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