09-11-2019, 01:22 PM
Typical Router with integrated DHCP/DNS automatically updates the DNS cache when a LAN client connects. It also adds the Router host itself to the cache. It would be assigned the Routers LAN address e.g. 192.168.1.1 or something similar. DHCP would be configured to assign clients the Routers LAN address for both Gateway and DNS.
This ensures that all client queries to other clients on the LAN never get forwarded to the public DNS's which are configured on the Routers WAM side.
Once you get into separating DNS and DHCP from the Router, static IP addressing, etc you have to ensure a configuration that prevents queries from LAN hosts to other LAN hosts or to the Router from being forwarded to the public DNS. It usually involves manually updating the hosts file on the DNS/DHCP server.
Something like that.
-Tim
This ensures that all client queries to other clients on the LAN never get forwarded to the public DNS's which are configured on the Routers WAM side.
Once you get into separating DNS and DHCP from the Router, static IP addressing, etc you have to ensure a configuration that prevents queries from LAN hosts to other LAN hosts or to the Router from being forwarded to the public DNS. It usually involves manually updating the hosts file on the DNS/DHCP server.
Something like that.
-Tim
