DHCP & Default Gateways!? 1

[teknovision]

Hi there!

Newbie here and, I'm loosing the plot.. . Any help would be greatly appreciated!!

All computers (including SBS 2003) are connected to a router/adsl modem (172.16.0.1), the SBS 2003 acts as a DHCP Server and has the static IP address 172.16.0.10. DHCP has been disabled on the router/adsl modem.

All computers are assigned IP addresses starting from 172.16.0.100 to .254. The users have been complaining about slow network performance and email (which is hosted on a server outside of our network) when I enter ipconfig on the client computers I get e.g. IP 172.16.0.106, Subnet 255.255.0.0 and Default Gateway 172.16.0.1

Should the default gateway not be 172.16.0.10 i.e. SBS 2003? If so, how do I change it so that all machines go to the right gateway?

Many thanks for any help you can give.. .

Philippe

 

[FaiTHLeSS]

The gateway should be fine as it is, it sounds like you are having DNS issues. If you are running a local DNS server on the SBS server then make sure its pointing to itself and has forwarders setup pointing to your ISP or some other public DNS servers. Then make sure for DNS all your local clients are pointing to your SBS server.

 

[teknovision]

Thanks for your reply Faithless!

I right-clicked on the Server within DNS and selected Properties. In the Interfaces Tab I have 'Only the following IP address' ticked with 172.16.0.10 in the list of IP Adresses i.e. the SBS's address.

In Forwarders, I have nothing selected as I got critical Errors in the Performance Report suggesting I remove address within Forwaders.. . should I still put in the IP of my adsl/router?

Many many thanks!!

Phil

 

[ShackDaddy]

Your router (probably) doesn't handle DNS queries.

Your ISP should have given you a pair of DNS server addresses to use. Plug them into the Forwarders fields. That's probably been your problem.

ShackDaddy