Avaya Business Secure Router 252 Configuration - Basics Uživatelský manuál stáhnout pdf (Strana 102)

102 Chapter 6 LAN screens

NN47923-500

First DNS

Server

Second DNS

Server

Third DNS

Server

Select From ISP if your ISP dynamically assigns DNS server

information (and the Business Secure Router's WAN IP address). The

field to the right displays the (read-only) DNS server IP address that the

ISP assigns.

Select User-Defined if you have the IP address of a DNS server. Enter

the DNS server's IP address in the field to the right.

Select DNS Relay to have the Business Secure Router act as a DNS

proxy. The Business Secure Router's LAN IP address displays in the

field to the right (read-only). The Business Secure Router tells the

DHCP clients on the LAN that the Business Secure Router itself is the

DNS server. When a computer on the LAN sends a DNS query to the

Business Secure Router, the Business Secure Router forwards the

query to the Business Secure Router's system DNS server (configured

in the SYSTEM General screen) and relays the response to the

computer. You can only select DNS Relay for one of the three servers.

Select None if you do not want to configure DNS servers. If you do not

configure a DNS server, you must know the IP address of a machine in

order to access it.

LAN TCP/IP

IP Address Type the IP address of your Business Secure Router in dotted decimal

notation (192.168.1.1 factory default).

IP Subnet Mask The subnet mask specifies the network number portion of an IP

address. Your Business Secure Router automatically calculates the

subnet mask based on the IP address that you assign. Unless you are

implementing subnetting, use the subnet mask computed by the

Business Secure Router 255.255.255.0.

RIP Direction With RIP (Routing Information Protocol, RFC 1058 and RFC 1389) a

router can exchange routing information with other routers. The RIP

Direction field controls the sending and receiving of RIP packets.

Select the RIP direction from Both/In Only/Out Only/None. When set

to Both or Out Only, the Business Secure Router broadcasts its routing

table periodically. When set to Both or In Only, it incorporates the RIP

information that it receives; when set to None, it does not send any RIP

packets and ignores any RIP packets received. None is the default.

Table 14 LAN IP

Label Description

1 2 ... 97 98 99 100 101 102 103 104 105 106 107 ... 459 460

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