To setup Conditional DNS Forwarding, go to Applications >> LAN DNS / DNS Forwarding, and click on an Index number to add/edit a profile:
To verify this function, we use the LAN Port Mirror to copy the WAN traffic. From the captured packets, we can see when a LAN client sends DNS query for “www.example.com” to a public DNS server, the request will be forwarded to the DNS server at IP “100.100.100.100”.
1. To configure a LAN DNS profile with type FORWARD, enable DNS Redirection in the LAN profile at LAN >> General Setupfirst.
2. Go to LAN >> LAN DNS and then click Add:
With the above configuration, when a LAN host sends DNS query to ask who is www.draytek.com or who is ftp.draytek.com, the router will forward the DNS query to DNS server 172.16.2.8; if it gets the response, it will send the answer to the LAN host.
Published On: Mar 20, 2015
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