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Chapter 3: Terminal Menu Operation and Structure
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Express L128/L128T User Manual
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DNS/Server 2
Write security: 3; Read security: 5
This is the IP address for the secondary DNS device.  It is used a back-up in 
case the primary address does not respond to the request.
IP/UDP Relay
The Express L128/L128T can be configured as a relay agent for UDP broadcast 
packets.  Normally, a router will not forward UDP broadcast packets.  How-
ever, many network applications use UDP broadcasts to configure addresses, 
host names, and other information. If hosts using these protocols are not on the 
same network segment as the servers providing the information, the client 
programs will not receive a response without enabling the UDP relay agent.
UDP Relay/Mode
Write security: 3; Read security: 5
When this option is set to On (def), the Express L128/L128T will act as a relay 
agent.
UDP Relay/UDP Relay List
Up to four relay destination servers can be specified in this list.
UDP Relay List/Relay Address
Write security: 3; Read security: 5
This is the IP address of the server that will receive the relay packet.
UDP Relay List/UDP Port Type
Write security: 3; Read security: 5
Standard 
(def) - The following standard UDP protocols are
relayed when set: DHCP, TFTP, DNS, NTP (Network
Time Protocol, port 123). NBNS (NetBIOS Name Server, port 137),
NBDG (NetBIOS Datagram, port 138), and BootP.
Specified 
- When set, the UDP port (1 to 65535) can be specified in 
the UDP Port columns.  (up to a maximum of three per server)