Configuring L2 and L3 Relay Features 933
Figure 34-9. Add Helper IP Address
3.
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. 
4.
Enter the IP address of the server to which the packets with the given UDP 
Destination Port will be relayed. 
5.
Click 
Apply
. 
The UDP/Helper Relay is added and the device is updated.
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).