User GuideIM 350/430 series

dns

Use the "dns" command to configure or display DNS (Domain Name System) settings.

View settings

The following command displays the current DNS settings:

msh> dns

IPv4 DNS server configuration

The following command enables or disables the IPv4 DNS server address:

msh> dns "ID" server "server address"

The following command displays a configuration using the IP address 192.168.15.16 on a DNS 1 server:

msh> dns 1 server 192.168.15.16

  • You can register an IPv4 DNS Server address.

  • You can select an ID number between 1 and 3. You can select up to three ID numbers.

  • You cannot use "255.255.255.255" as the DNS server address.

IPv6 DNS server configuration

The following command enables or disables the IPv4 DNS server address:

msh> dns "ID" server6 "server address"

  • You can register an IPv6 DNS Server address.

  • You can select an ID number between 1 and 3. You can select up to three ID numbers.

Dynamic DNS function setting

msh> dns "interface_name" ddns {on|off}

  • You can set the dynamic DNS function "active" or "inactive".

  • {on} means "active" and {off} means "inactive".

  • wlan can be specified only when the optional wireless LAN board is installed.

Interface name

Interface configured

ether

Ethernet interface

wlan

Wireless LAN interface

Specifying the record overlap operation

msh> dns overlap {update|add}

  • You can specify operations performed when records overlap.

  • update: To delete old records and register new records.

  • add: To add new records and store the old records.

  • When CNAME overlaps, it is always changed, irrespective of the settings.

CNAME registration

msh> dns cname {on|off}

  • You can specify whether to register CNAME.

  • {on} means "active" and {off} means "inactive".

  • The CNAME registered is the default name beginning with rnp. CNAME cannot be changed.

A records registration

msh> dns arecord {dhcp|own}

  • dhcp: You can specify the method of registering an A record when the dynamic DNS function is enabled and DHCP is used.

  • own: To register an A record using the machine as the DNS client.

    The DNS server address and the domain name already designated are used for the registration.

Registering AAAA record as DNS client when DDNS function is enabled and DHCPv6 is set

dns aaaarecord [dhcpv6|own]

  • dhcpv6: DHCPv6 server registers AAAA record as DNS client instead of the machine.

  • own: Machine registers AAAA record as DNS client.

Record updating interval settings

msh> dns interval [1–255]

  • You can specify the interval after which records are updated when using the dynamic DNS function.

  • The updating interval is specified hourly. It can be entered between 1 and 255 hours.

  • The default is 24 hours.

resolv.conf display

msh> dns resolv

Specifying the protocol when asking names during dual stacking

msh> dns resolv protocol {ipv4|ipv6}

  • This appears during dual stacking only.