Re: browsing nightmare .. please help

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

Thanks everyone..
Problem has been resolved. Apparently we used a caching device in our
network called steelhead that blocked NetBIOS traffic . I contacted our
local Cisco guy and now I can see all servers and domains in all subnets..
Don't ever blame you network guy.. :-) ya...

"Ace Fekay [MVP]" <PleaseAskMe@xxxxxxxxxxxxxx> wrote in message
news:um9WSlrCHHA.1224@xxxxxxxxxxxxxxxxxxxxxxx
In news:%23c6QjRlCHHA.4892@xxxxxxxxxxxxxxxxxxxx,
Darren@xxxxxxxxxxxxxxxx <GQ@xxxxxxxxxxxxxxxx> stated, which I commented on
below:
Thanks everyone, but do have a couple questions..

Just to clarify , all my clients including my servers all point to one
centralized WINS server and my environment consist of a over 50 or so
subnets in various locations . Browsing was fine, I was able to see
all servers from all subnets up until recent where we added a new
subnet and move 8 servers from subnet A to subnet B . Now I am having
a problems I unable to see new servers on subnetB . i.e If I lunch
my network places on any of the servers in this new subnetB I can
only see the 8 servers in subnetB but if I were to do the same on any
machine in subnetA or any other subnet EXCEPT the new subnetB I can
see all computers in all other subnets except computers on the new
subnetB.. In my conclusion I think on subnetB the browser master is
having
problems communicating or perhaps unable to update its master browser
list on the domain master browser which resides in subnetA. Is there
any ports etc need be allowed on the router for browsing to work. I
ran a trace to the domain master browser and the WINS server using
MS portquery via UDP port 138 from the subnetB master browser and it
appears that port 138 is not being blocked..
I am puzzled why this is not working..
Any suggestions would certainly be appreciated.

TIA

If all subnets are internal company subnets, and assuming they are in
remote locations and have a VPN tunnel connecting them, I would assume
then that all locations are trusted for internal communications and
authentication (domain and otherwise), therefore, in this scenario, why
would any firewall exist between any of the subnets? As the article by
Herb indicated, there are numerous ports required for proper domain
communication, which turns the firewall into swiss cheese, which in turn
bodes the question, why even have a firewall?

In this sort of scenario, and of course I am assuming all is trusted, that
we can eliminate a firewall, as long as the VPN tunnels are secure.

As for the new subnet, is there a server (domain controller or member
server)?

As for the specific port for WINS, that would be TCP & UDP 42.

MS Windows NT Browser (How it works and troubleshoot it):
http://www.microsoft.com/technet/archive/winntas/deploy/prodspecs/ntbrowse.mspx?mfr=true

Troubleshooting the Microsoft Computer Browser Service:
Although there is no centralized method to determine if the browse list
across a WAN is complete, there are techniques to determine if the servers
on a ...
http:// support.microsoft.com/kb/188305

--
Ace
Innovative IT Concepts, Inc (IITCI)
Willow Grove, PA

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft MVP - Directory Services
Microsoft Certified Trainer

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