Questions

LAN connectivity issues

+
0 Votes
Locked

LAN connectivity issues

Qbert0
Newbie in training trying to get a bum network back online.

Small school network running one server 2003.
Setup as a DC, file/printer, VPN, and DNS.
Also features one modem/router, two 24-port switches, about 30 workstations and a few printers.

Was setup with Dual homed Nics but i dissabled one due to not being able to get them working.

Everything is static ip, except tcp/ip set to auto.

1.Can only logon to server and teacher workstation. all other w/s state "no domain setup for user". Both Admin and Users get this reply.
2.Can ping teacher w/s from server but has 75% fail... Teacher cannot ping server.
3.Cannot ping any other w/s. only self and router
3.Teacher can remote access server but server cannot remote to any other computer.
4.Tracert from server to teach gets hung at router/switch.
5.All Nics and patch cables seem to be ok, new switches and modem.
6.Server and teach have internet.
+
0 Votes
LarryD4
Collapse -

Ok well when you say
"Everything is static ip, except tcp/ip set to auto."
Whats auto mean?

If everything is static, you mean even the workstations are static IP assignement?

+
0 Votes
Qbert0
Collapse -

The internet connection is set to obtain an IP address automatically. DNS is static.
Yes, all of the w/s have static IP's.

+
0 Votes
LarryD4
Collapse -

What are the DNS entries for the PCs? For AD to work it has to be the AD DNS server.

You should have the DNS server setup so that if it can't resolve an address, it fowards out the request, to your providers DNS, is this the case?

The way you describe its like the local Workstations don't know how to get around the network, hence the DNS config questions.

+
0 Votes
Qbert0
Collapse -

The DNS entry is:
192.168.0.1

Where would I go to see if DNS is forwarding to the provider?

Thanks for the Help!

+
0 Votes
LarryD4
Collapse -

I am assuming your DNS/DS Windows 2003 server address is 192.168.0.1.

You will first need to look in the DNS server config on the server and make sure their are name record entries and reverse entries for your PC's in the network. This usually happens automatically if you use DHCP to assign addresses, but check to be sure.

Their should also a configuration in DNS to tell it what IP address to foward unsuccessful lookups to if they fail. I can't remember exactly where but I'm pretty confident that its under options for the DNS server.

Also make sure the the first DNS entry on the servers network card is the servers IP(192.168.0.1) and then the second entry is the DNS server of your provider.

+
0 Votes
Qbert0
Collapse -

IP of the server is actually:
192.168.0.72
So, does this look right for the server?
IP Address. . . . . . . . . . . . : 192.168.0.72
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 192.168.0.72
205.171.3.25

I set the DNS for the teach w/s to
192.168.0.72
and it can now ping server (thats a step forward).
Still can't ping from server to teach w/s though.

Found DNS forwarding is set to the providers DNS 205.171.3.25 and 205.171.2.25.
Shouldn't it be set to the server ip?
Also (fyi) this is what I get with nslookup:
*** Can't find server name for address 192.168.0.72: Non-existent domain
Default Server: UnKnown
Address: 192.168.0.72

+
0 Votes
LarryD4
Collapse -

Sorry I didn't post sooner, its the next day for me. :)

If your Windows 2003 server is also your AD DNS server then the IP address of the server MUST be the DNS server address for your workstations and everything else that resides in your network.

+
0 Votes
Qbert0
Collapse -

Ok... that make sense, but how would I check to make sure or correct these settings on each client if I cant logon to them? Even when I unplug the network cable and try to logon it still states "no domain setup for user"

Thanks again for your help.

+
0 Votes
Qbert0
Collapse -

Sorry... actually states "No logon servers to access the logon request" when trying to logon to client computers. Same when clients try to logon.

+
0 Votes

Umm

LarryD4
Collapse -

Umm Qbert0 I have to ask are you a Network Admin?

I ask because even a Jr. Net Amin should know that you would need to logon to the local account for each PC and change the IP config..