Hi, I have setup Smoothwall Express 3 behind my linksys home router thats connects to the internet.
(I prefer not to use Smoothwall forums as you get flamed for anything).
First a few settings to help explain:
-Linksys router - 192.168.1.1
-Smoothwall (SW) red interface that connects to linksys - 192.168.1.103
-SW gateway is set to 192.168.1.1 and primary DNS is 127.0.0.1
-SW interface of green network - 192.168.70.1
-SW interface of purple (wireless) network - 192.168.71.1
-Netgear access point (AP) for wireless clients - 192.168.71.200
If my SW interface that connects to the linksys router has a static IP and the linksys is using NAT then I am not double NAT'ing?
Hosts on the green network have DNS set to the address of the linksys router - 192.168.1.1 and they can access the internet fine. The main problem is that clients on purple cannot get internet due to no DNS.
Purple clients can ping the purple SW interface and the netgear AP but not the linksys router.
Forgive me if the following sounds dumb:
There is a static DNS entry in the linksys router to SW red interface - could I not just make SW a DNS server so that green and purple clients use green and purple default gateways as DNS instead.
-Double NAT'ing or not?
-Purple clients need internet - how to get DNS?
-Better idea to make SW a DNS server - if so how?
Anymore information needed then please say.
I am not a network expert so go steady please.
Look forward to any help.