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Customizing the DNS Client

304234-A Rev 00

9-3

Modifying the DNS Client Configuration

You can modify how the router makes requests to the DNS server, for example,

how often requests are repeated and how long it waits between requests.

Using the BCC

To modify how the router sends DNS requests, navigate to the dns prompt and

enter the following parameters:

time-out

integer

is a value from 1 to 60 seconds.

max-retransmissions

integer>

integer

is a value from 0 to 15 seconds.

max-outstanding-queries

integer>

integer

is a value from 1 to 100.

tos

service_type>

service_type

is either normal or lowdelay.

domain-name

name>

name

is an alphanumeric character string representing the default domain name

the router uses when trying to reach a DNS server.

use-default-domain

state

is either enabled or disabled. This parameter is valid only if you have

specified the domain-name parameter.

hosts-file

path

is the name of or path to a file in flash memory that contains a list of default

host name/IP address pairs. If you specify a host file, the DNS client first checks

whether the host name exists locally in the host file. If not, the DNS client sends

an address-resolution request to one of the configured DNS servers. The larger the

host file, the slower the lookup.

An example showing commands that modify the DNS client configuration

follows.

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Avaya Configuring IP Utilities Manual de usuario Pagina 149