ADTRAN TA 544 User Manual

Contents

TA 544 User Manual/61200704L1-1APage 31 of 68© 2001, ADTRAN, Inc. TA 544 User ManualUDP RelayThis menu configures the TA 544 to act as a UDP relay agent for applications requiring a response fromUDP hosts that are not on the same network segment as their clients.ModeWhen this option is set to ON, the TA 544 will act as a relay agent.UDP Relay ListUp to four relay destination servers can be specified in this list.BridgeThe B RIDGE menu is used to set up the bridge parameters for the TA 544. The bridging function runs at theMedia Access Control (MAC) level which allows any protocol packets that run over Ethernet to be for-warded. Bridging can run concurrently with IP. However, when IP routing is active, IP packets (whichinclude ARP packets) are not bridged.ModeThis is used to enable the bridge function.Address TableThe TA 544 automatically maintains a table of MAC addresses detected and associates those addresseswith the LAN or WAN port from which they were received.R ELAY A DDRESS This is the IP address of the server that will re-ceive the relay packet.UDP P ORT TYPESTANDARD (def) The following standard UDP protocols arerelayed 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 bespecified in the UDP Port columns (up tothree per server).UDP P ORT 1, 2, 3 Used for specifying UDP ports to be relayed.These fields only apply when UDP PORT TYPE isset to SPECIFIED.AGING The maximum time an idle MAC address remains inthe table before being removed. The value is in min-utes.F ORWARD P OLICY When this parameter is set to U NKNOWN (def), anybridge packet with a destination MAC address thatis not in the bridge table is forwarded to all otherports. When set to K NOWN, the packet with the un-known destination MAC address is dropped and isnot forwarded.