Google DNS and DHCP clients
-
I want to move away from using my ISP's DNS servers and use Google's instead. So I've set the following configuration:
General Setup:
-
DNS IPs have been set to 8.8.8.8 and 8.8.4.4.
-
"Allow DNS server list to be overridden by DHCP/PPP on WAN" is unchecked
-
"Do not use the DNS Forwarder as a DNS server for the firewall" is checked
DNS Forwarder:
-
DNS Forwarder is Enabled
-
"Register DHCP leases in DNS forwarder" is checked
-
"Register DHCP static mappings in DNS forwarder" is checked
-
All other options within DNS Forwarder are unchecked
DHCP Server:
-
DHCP Server is Enabled
-
The DNS Servers section is not populated.
So on my DHCP clients, when I check the settings the only DNS server configured is the LAN address of my pfSense box. If I try to do a traceroute from my system on the LAN (with a DHCP lease), I get the following:
host:~ user$ traceroute www.pfsense.org traceroute to www.pfsense.org (208.123.73.69), 64 hops max, 52 byte packets 1 pfsense (192.168.0.1) 1.582 ms 0.750 ms 0.700 ms 2 10.82.8.1 (10.82.8.1) 8.151 ms 8.342 ms 8.116 ms 3 ip68-4-11-194.oc.oc.cox.net (68.4.11.194) 8.336 ms 7.643 ms 8.072 msA couple of questions:
-
Is seeing this 10.82.8.1 IP address normal? Is this just an internal IP address pfSense is using?
-
Why is my ISP's DNS IP coming up on ping#3 instead of one of the configured Google DNS IPs?
-
-
DNS simply translates a hostname to a IP address. Using a different DNS server does not mean the route to a certain IP address will be different.
Answer to 1: probably an internal IP used by your ISP.
Answer to 2: see above.