Huge problems with Routing / NAT / DC

[Flare]

Hi

I have big problems with win 2000 server´s Routing and NAT function. Before
i go further I also promoted my server to a domain controller if that could
affect the problem descriped.

My problem is that all clients connected to the server is having big
problems surfing the internet. Images get lost (red cross) and generally
poor performance. I just noted that NAT is rejecting aprox 20 % of all
outgoing packets and i suspect thats is the root of alle the problems.

This newsthread is descriping exactly the same problem but the asnweres does
not solve my problem
http://groups.google.dk/groups?hl=d...-8&selm=eonHU3vxBHA.2856%40tkmsftngp05&rnum=4

Any suggestions?
My server has 2 NIC´s. The external NIC with static IP and an Internal with
the ip 192.168.0.1. Only the TCP/IP protocol is installed on the external
NIC. And the server is a domain controller. CPU load never exceeds 10%.

Any clues...because i don´t. Have boxed with my server for 10 hours now...
:-((

Regards
Anders

 

[Marina Roos [SBS-MVP]]

Can you post the ipconfig/all please? How are you connecting to the
internet? Have you checked the bindingorder of your nics (network
connections, advanced, advanced) and made sure the internal nic is on top?

 

[Flare]

Can you post the ipconfig/all please? How are you connecting to the

internet? Have you checked the bindingorder of your nics (network
connections, advanced, advanced) and made sure the internal nic is on top?

Yes i have checked the bonding order. It is correct my internal lan card is
topmost

Here is my ipconfig /all from my server

Named as: "Lan kort (internal)" and "Internet Kort (external)"
my static IP is: 80.62.38.164

E:\Documents and Settings\Administrator.WIN2000SERVER.000>ipconfig /all

Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : win2000server
Primary DNS Suffix . . . . . . . : pings.dk
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : pings.dk
opasia.dk

Ethernet adapter Lan kort:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8139(A) PCI Fast
Ethernet
Adapter
Physical Address. . . . . . . . . : 00-10-A7-13-13-03
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.0.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 193.162.153.164
194.239.134.83

Ethernet adapter Internet kort:

Connection-specific DNS Suffix . : opasia.dk
Description . . . . . . . . . . . : D-Link DFE-530TX PCI Fast
Ethernet A
dapter
Physical Address. . . . . . . . . : 00-50-BA-DF-A0-B9
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 80.62.38.164
Subnet Mask . . . . . . . . . . . : 255.255.255.240
Default Gateway . . . . . . . . . : 80.62.38.161
DHCP Server . . . . . . . . . . . : 80.166.136.117
DNS Servers . . . . . . . . . . . : 193.162.153.164
194.239.134.83
Lease Obtained. . . . . . . . . . : 14. april 2004 02:37:20
Lease Expires . . . . . . . . . . : 14. april 2004 03:37:20

Thx in regards
Anders

 

[Marina Roos [SBS-MVP]]

Hi Anders,

DNS on both internal and external nic should *ONLY* point to your server-IP.
Don't you have a static IP on your external nic? You shouldn't need to bind
DHCP server to it.
The internal nic, TCP/IP, Advanced, DNS: make sure the 'register in DNS' and
'add primary suffix' are checked. On the external nic they should both be
unchecked.