D
Dan
Hello,
I have a client that is using a Windows 2000 Server setup as a domain
controller. It is setup with Active Directory and is configured as a
DHCP server and of course DNS is running but with an unqualified
domain name (i.e. server.local). We've been using a Sprint Broadband
connection that uses a cable modem for some time now without any
problems. From the Sprint cable modem I run the connection into a
Netgear Cable/DSL router which is performing NAT but not DHCP. I do
this to protect the network from the outside world. The Server
provides DHCP IP addresses and it's own IP as the DNS server for the
network. I have enabled DNS forwarders in the Server's DNS and have
deleted the root "." zone from the foward lookup zone per a set of
instructions I located on this type of configuration.
We recently switched over to a fractional T1 and that is when the
trouble began. As soon as I run a cable from the T1 router to the
cable/dsl router and configure the cable/dsl router for a static IP,
things get flaky...meaning that I can ping a site but I might only
receive two out of four packets in reply. Attempting to bring up any
website may or may not complete successfully and sometimes there's
just a lengthy delay.
I connected a PC directly to the T1 router and set it up with static
IP, DNS, GW, and SM that I have been using in the cable/dsl router and
everything worked fine. I've tried flushing the DNS cache on the
server but to no avail. I'm not sure what to try next. I believe the
issue lies somewhere in my DNS configuration on the server but I'm not
very knowledgable with regard to DNS configuration and setup.
Any help is greatly appreciated.
Dan
I have a client that is using a Windows 2000 Server setup as a domain
controller. It is setup with Active Directory and is configured as a
DHCP server and of course DNS is running but with an unqualified
domain name (i.e. server.local). We've been using a Sprint Broadband
connection that uses a cable modem for some time now without any
problems. From the Sprint cable modem I run the connection into a
Netgear Cable/DSL router which is performing NAT but not DHCP. I do
this to protect the network from the outside world. The Server
provides DHCP IP addresses and it's own IP as the DNS server for the
network. I have enabled DNS forwarders in the Server's DNS and have
deleted the root "." zone from the foward lookup zone per a set of
instructions I located on this type of configuration.
We recently switched over to a fractional T1 and that is when the
trouble began. As soon as I run a cable from the T1 router to the
cable/dsl router and configure the cable/dsl router for a static IP,
things get flaky...meaning that I can ping a site but I might only
receive two out of four packets in reply. Attempting to bring up any
website may or may not complete successfully and sometimes there's
just a lengthy delay.
I connected a PC directly to the T1 router and set it up with static
IP, DNS, GW, and SM that I have been using in the cable/dsl router and
everything worked fine. I've tried flushing the DNS cache on the
server but to no avail. I'm not sure what to try next. I believe the
issue lies somewhere in my DNS configuration on the server but I'm not
very knowledgable with regard to DNS configuration and setup.
Any help is greatly appreciated.
Dan