ZyXEL Communications 4.04 Manual De Usuario

 Chapter 15 IP Commands

ZyWALL (ZyNOS) CLI Reference Guide

ip dns lan edit <0|1|2> <0:from 

ISP|1:user defined|2:DNS 

relay|3:none> [isp-idx|ip-

address]

Configures the DNS server settings the ZyWALL assigns to 
LAN DHCP clients. 

0|1|2

: Configures the first, second, or third DNS server 

setting.

0:from ISP|1:user defined|2:DNS relay|3:none

: If 

you set the server as from ISP (0), specify the number of the 
ISP. If you set the server as user defined (1), specify the IP 
address.

isp-idx|ip-address

: The number of the ISP (the number 

of the remote node) or the IP address of the DNS server.

R

ip dns lan edit <0|1|2> <0:from 

ISP|1:user defined|2:DNS 

relay|3:none> [isp-idx|ip-

address]

Configures the DNS server settings the ZyWALL assigns to 
LAN DHCP clients. 

0|1|2

: Configures the first, second, or third DNS server 

setting.

0:from ISP|1:user defined|2:DNS relay|3:none

: If 

you set the server as from ISP (0), specify the number of the 
ISP. If you set the server as user defined (1), specify the IP 
address.

isp-idx|ip-address

: The number of the ISP (the number 

of the remote node) or the IP address of the DNS server.

R

ip dns query address <ip-

address> [timeout]

Displays the domain name of an IP address. 

timeout:

 The maximum number of seconds to wait for a 

response.

R

ip dns query name <domain-name>

Displays the IP address of a domain name.

R

ip dns system cache disp <0~5> 

[0:increase|1:decrease]

Displays the DNS cache table. Select which criteria to sort the 
entries by. 

0

: Displays the entries by the time they were created.

1

: Sorts the entries by domain name or URL.

2

: Sorts the entries by type (positive or negative).

3

: Sorts the entries by IP address.

4

: Sorts the entries by the number of times the entry was used. 

5

: Sorts the entries by Time To Live (number of seconds left 

before the DNS resolution entry is discarded from the cache).

0:increase|1:decrease

: Specify ascending or 

descending order.

R+B

ip dns system cache flush

Clears the DNS cache.

R+B

ip dns system cache negaperiod 

<60~3600>

Sets the number of seconds negative DNS entries stay in the 
cache.

R+B

ip dns system cache negative 

<0:disable|1:enable>

Enables or disables the DNS negative cache.

R+B

ip dns system cache positive 

<0:disable|1:enable>

Enables or disables the DNS positive cache.

R+B

ip dns system cache ttl <60~3600>

Sets the positive DNS cache maximum TTL (Time To Live).

R+B

ip dns system dela <index>

Removes the specified DNS address record entry.

R+B

ip dns system delns <index>

Removes the specified DNS name server record entry.

R+B

ip dns system display

Shows the system DNS server settings.

R+B

Table 48   DNS Commands (continued)