Re: Possible routing problem because of subnet mask change.

Sorry, I got tied up yesterday with WSUS.

Both of the DNS Servers are DC. Should I only use one DNS Server?

It fails both ways. His windows firewall is turned off.





"Herb Martin" wrote:


"Steve" <newnetworkguy@xxxxxxxxxxxxxxxx> wrote in message
news:89058E99-C339-4AFB-81BB-C5DB061E30AC@xxxxxxxxxxxxxxxx
I'm sorry, I told you that I was new.

Could my DNS Servers be setup wrong?

Could be as a lot of people, with more experience than you claim, do it
wrong.

We have two servers that are configured
as DNS Servers.

Do you have ZONES (like your domain names) defined on them? One as
Primary and the other as Secondary, or perhaps one or both of them as
Active Directory Integrated if they are DCs?

One of our users keeps having this problem with his laptop. I had him run
ipconfig and tell me his IP address, but I can't ping it.

He might simple be running the XP firewall with the ICMP protocol (used by
ping) blocked.

Does the ping fail by both IP and Name (ip, routing, hardware problem) or
only by name (dns Problem).

Is his machine on the same subnet/wire with you? If not, try Tracert and
see
how far/close you can get to him....

Also post the unedited text from "IPConfig /all" from both a working machine
and his trouble machine....

He is able to get
to everything (for now).

So this tends to imply that only access TO him is giving trouble and that
points
towards the Firewall idea somewhat.

I looked in the DHCP Leases and it lists 2 different
addresses for him that don't match the one he gave me.

So you ping by IP (that he gave you) and see if that works.

The second one is for
his wireless card. If I try and ping him by host name, it tries checking
for
it at a 4th address.

If his wireless card is on "another network" with no routing setup
(correctly)
then you won't reach him by that path.

--
Herb Martin, MCSE, MVP
http://www.LearnQuick.Com
(phone on web site)



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