ADTRAN Express 6120 Manual de instrucciones descargar pdf (Pagina 50)

Chapter 3. Terminal Menu Operation and Structure

3-16 Express 6100/6120 User Manual 61200176L1-1

This mode is most commonly used with the NAT functionality. The

default is Off.

NAT/DHCP Renewal Time

Write security:3; Readsecurity: 5

Thisisthe numberofhours thatthe DHCP server shouldallowthe de-

vice before it is required to send a new DHCP request. The default is

15 hours, and 0 represents an infinite lease.

NAT/Web Server

Write security:3; Readsecurity: 5

This isthe IPaddress ofa webserver onthe Ethernetnetwork. When

anactiveNATconnectionismadetotheInternet,anyHTTP,FTP,or

SMTP server requests from the WAN are translated and sent to this

web server. Normally, communication across NAT must be initiated

fromtheLAN sideofthe Express 6100/6120. Web Server allows a sin-

gle machine on the NAT side to be accessed from the Internet side of

NAT.This provides outside accesstoa webserver,mail, or ftp server.

NAT/Default IP

Thisisthe IPaddressusedby theExpress6100/6120forNetworkAd-

dress Translation when nothing is assigned during the PPP negotia-

tionwhenPPPmodeisactiveorwhennothingisspecifiedintheDLCI

Mapping’s Link IP Address.

»» IP/DNS

TheDomain NameServer parameters used by the Express 6100/6120

are specified here. The DNS server addresses can be exchanged be-

tween PPP peers. When a connection occurs and IPCP is negotiated,

theExpress6100/6120willgettheDNSserveraddressesfromthePPP

peer. If the configured DNS server addresses (Server 1 and Server 2)

areallzeros,theaddressesfromthePPPpeerareused.InNATmode,

the PPP peer’s DNS addresses are always used. TheDNSaddressesset

in Server1 and Server2 are offered to a PPP peer if requested.

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ADTRAN Express 6120 Manual de instrucciones Pagina 50