ADTRAN Express 6120 Manual de instrucciones descargar pdf (Pagina 52)

Chapter 3. Terminal Menu Operation and Structure

3-18 Express 6100/6120 User Manual 61200176L1-1

UDP Relay List/Relay Address

Write security:3; Readsecurity: 5

This is the IP address of the server that will receive the relay packet.

UDP Relay List/UDP Port Type

Write security:3; Readsecurity: 5

UDP Relay List/UDP Ports 1, 2, and 3

Write security:3; Readsecurity: 5

UDP Port 1, UDP Port2, and UDP Port3 are used for specifying UDP

ports to be relayed. These fields only apply when UDP Port Type is

set to Specified.

»» IP/Proxy ARP

Write security:4; Readsecurity: 5

This feature allows the network portion of a group of addresses to be

shared among several physical network segments. The ARP protocol

itselfprovidesawayfordevicestocreateamappingbetweenphysical

(i.e., Ethernet)addresses and logical IP addresses. Proxy ARP makes

use of this mapping feature by instructing a router to answer ARP re-

quests as a “proxy” for the IP addresses behind one of its ports. The

device which sent the ARP request will then correctly assume that it

can reach therequested IPaddress by sendingpackets tothe physical

address that was returned to it. This technique effectively hides the

factthat anetwork hasbeen (further) subnetted. Ifthis option is setto

Yes (def), when an ARP request is received on the Ethernet port the

address is looked up in the IP routing table. If the forwarding port is

not on the Ethernet port and the route is not the default route, the Ex-

press 6100/6120 will answer the request with its own hardware ad-

Standard

(def)

The following standard UDP protocols are relayed

when set: DHCP, TFTP, DNS, NTP (Network Time

Protocol, port 123). NBNS (NetBIOS Name Server,

port137),NBDG(NetBIOSDatagram,port138),and

BootP.

Specified Whenset,theUDPport(1to65535)canbe specified

intheUDPPortcolumns.(uptoamaximumofthree

per server)

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 160 161

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ADTRAN Express 6120 Manual de instrucciones Pagina 52