Adding a Split DNS Server

To add domain-specific DNS servers and associate them to a given domain name

The maximum number of entries for Split DNS is 1024. If the list is full, new entries cannot be added.

1. Navigate to Network | DNS > Settings.
2. Choose the IP version from View IP Version.
3. To enable proxying of split DNS servers, select Enable proxying of split DNS servers. This option is selected by default.

4. Under the Split DNS table, click +Add. The Add Split DNS dialog displays.

   If you selected DNS Proxy, the DNS Proxy page also displays the Split DNS table.

5. Choose the IP version:
   • IPv4
   • IPv6
   • Both
6. In the Domain Name field, enter the domain name. The name can contain a wildcard (*; for example, *.SonicWall.com).
7. To configure one or more IPv4/IPv6 Split DNS Servers for this domain, enter the IP addresses in the appropriate fields:
   • IPv4/IPv6 DNS Server Primary
   • IPv4/IPv6 DNS Server Secondary
   • IPv4/IPv6 DNS Server Tertiary
8. From the Local interface drop-down menu, select an interface.
9. If you have enabled DNS Proxy:

   1. To specify a Time to Live, select Manually set TTL value in DNS reply. This option is not selected by default. If this option is not selected, the TTL value is the same as that from the DNS response; if it is set, the TTL value is the same as the setting.

      This option applies only when Split DNS is used by DNS Proxy.

   2. Enter the maximum time for the cache entry to exist. The minimum is one second, the maximum is 999999999 seconds.
10. Click Save.

The DNS servers display in the Split DNS table of both IP versions regardless of which IP version was chosen when configuring them.