Re: Win2K Pro does not resolve external hosts unless given static IP

From: Ken (anonymous_at_discussions.microsoft.com)
Date: 02/12/04 

Date: Thu, 12 Feb 2004 13:45:56 -0800

I'm not at the client anymore to get you a screen print
of that, but I configured DHCP to hand out only
10.0.1.128 for the WINS and DNS servers. This is the ip
for the domain controller. DHCP hands out 10.0.1.1 as
the gateway.

Another thing that is very weird... I found that I can
make a change in the TCP/IP settings on a workstation
configured to use DHCP, the workstation will resolve
external hosts properly, I'll reboot the PC, and then it
will not work again.

Examples of these changes are:
- In the WINS tab, changing the NetBIOS setting from Use
DHCP... to Enable NetBIOS over TCP/IP and then changing
it back.
- Changeing the DNS server to a different IP like the
ISP's DNS server and then changing it back.

>-----Original Message-----
>In news:e495fb3d.0402120934.1ff11a2e@posting.google.com,
>Kenneth Courville <krcourville@msn.com> posted a question
>Then Kevin replied below:
>: I have a client with a small network of about 7
Windows 2000 Pro-based
>: PC's and a Windows 2000 Server configured as a DC.
>:
>: Upon acquiring this client, I tried to steamline the
network by
>: setting up the DHCP service on the DC and properly
configuring the DNS
>: service forwarders with the ISP's DNS servers.
>:
>: For some reason, all of the workstation except for one
cannot resolve
>: external hosts like www.yahoo.com. I can use the
NSLOOKUP tool to
>: resolve the host to an IP and ping/browse the IP just
fine. Resolving
>: internal hosts seems to work fine as well. They are
able to map the
>: the server shares and browse the network.
>:
>: However, if I assign static IP information, external
host resolution
>: works fine.
>:
>: I can plug in my own laptop to their hub and browse
the web with no
>: further configuration on my laptop, using DHCP-
assigned ip info. This
>: leads me to believe that the problem is workstation-
related.
>:
>: Their previous administrator left under bad terms, and
I'm afraid that
>: these PC's may have been sabataged somehow.
>:
>: Does anyone have any idea on this? I can't find a
decent DNS
>: troubleshooting doc.
>:
>: Here's what a statically configured workstation looks
like:
>: Windows 2000 IP Configuration
>:
>: Host Name . . . . . . . . . . . . :
hostnamechangedforprivacy
>: Primary DNS Suffix . . . . . . . :
>: clientdomainchangedforprivacy.com
>: Node Type . . . . . . . . . . . . : Hybrid
>: IP Routing Enabled. . . . . . . . : No
>: WINS Proxy Enabled. . . . . . . . : No
>: DNS Suffix Search List. . . . . . :
>: clientdomainchangedforprivacy.com
>:
>: Ethernet adapter Local Area Connection 2:
>:
>: Connection-specific DNS Suffix . :
>: Description . . . . . . . . . . . : D-Link DFE-
530TX+ PCI
>: Adapter
>: Physical Address. . . . . . . . . : 00-05-5D-
4B-BF-C0
>: DHCP Enabled. . . . . . . . . . . : No
>: IP Address. . . . . . . . . . . . : 10.0.1.210
>: Subnet Mask . . . . . . . . . . . :
255.255.255.0
>: Default Gateway . . . . . . . . . : 10.0.1.1
>: DNS Servers . . . . . . . . . . . : 10.0.1.128
>: Primary WINS Server . . . . . . . : 10.0.1.128
>
>It would help a lot if you would give an ipconfig /all
from a client that
>uses DHCP.
>But what is the DNS address in DHCP option 006 and the
gateway address in
>option 003?
>
>--
>Best regards,
>Kevin D4 Dad Goodknecht Sr. [MVP]
>Hope This Helps
>============================
>--
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