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During my testing only the /0 and /32 network prefix lengths worked, specifying a /24 caused the DNS Service to not respond. I have added the /0 network to the above examples so the documentation exists for this required command and will submit a bug report on the issue.
73 lines
2.2 KiB
ReStructuredText
73 lines
2.2 KiB
ReStructuredText
DNS Forwarding
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--------------
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Use DNS forwarding if you want your router to function as a DNS server for the
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local network. There are several options, the easiest being 'forward all
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traffic to the system DNS server(s)' (defined with set system name-server):
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.. code-block:: sh
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set service dns forwarding system
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Manually setting DNS servers for forwarding:
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.. code-block:: sh
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set service dns forwarding name-server 8.8.8.8
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set service dns forwarding name-server 8.8.4.4
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Manually setting DNS servers with IPv6 connectivity:
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.. code-block:: sh
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set service dns forwarding name-server 2001:4860:4860::8888
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set service dns forwarding name-server 2001:4860:4860::8844
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Setting a forwarding DNS server for a specific domain:
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.. code-block:: sh
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set service dns forwarding domain example.com server 192.0.2.1
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Set which networks or clients are allowed to query the DNS Server. Allow from all:
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.. code-block:: sh
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set service dns forwarding allow-from 0.0.0.0/0
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Example 1
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^^^^^^^^^
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Router with two interfaces eth0 (WAN link) and eth1 (LAN). Split DNS for example.com.
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* DNS request for a local domain (example.com) get forwarded to 192.0.2.1
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* Other DNS requests are forwarded to Google's DNS servers.
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* The IP address for the LAN interface is 192.168.0.1.
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.. code-block:: sh
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set service dns forwarding domain example.com server 192.0.2.1
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set service dns forwarding name-server 8.8.8.8
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set service dns forwarding name-server 8.8.4.4
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set service dns forwarding listen-address 192.168.0.1
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set service dns forwarding allow-from 0.0.0.0/0
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Example 2
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^^^^^^^^^
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Same as example 1 but with additional IPv6 addresses for Google's public DNS
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servers.
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The IP addresses for the LAN interface are 192.168.0.1 and 2001:db8::1
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.. code-block:: sh
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set service dns forwarding domain example.com server 192.0.2.1
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set service dns forwarding name-server 8.8.8.8
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set service dns forwarding name-server 8.8.4.4
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set service dns forwarding name-server 2001:4860:4860::8888
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set service dns forwarding name-server 2001:4860:4860::8844
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set service dns forwarding listen-address 2001:db8::1
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set service dns forwarding listen-address 192.168.0.1
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set service dns forwarding allow-from 0.0.0.0/0
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