Solved

NT domain trust across a cisco router

Posted on 2000-02-29
8
280 Views
Last Modified: 2013-12-23
I think this is probably a pretty straightforward problem, but I've failed to get it:
I have domains sam and smc separated by a cisco 2621.  smc has some resources that sam must use.  I've added helper-addresses for the broadcast channel and the pdc of the other side to each of my ports.  I've enabled directed-broadcast and added forward-protocol for the udp 137/138 that pass NetBIOS.  However, I still get the "unable to locate domain controller" when I set up the trust relationship.  Any ideas?
0
Comment
Question by:nherron
  • 4
  • 2
  • 2
8 Comments
 
LVL 2

Expert Comment

by:posivibe
ID: 2570465
Open up port 139 as well.
0
 
LVL 2

Expert Comment

by:posivibe
ID: 2570469
Here's the Qbase article for the whole story:

http://support.microsoft.com/support/kb/articles/Q179/4/42.ASP

Port 135 for RPC calls should be opened as well.  We just set up a similar network last week but didn't need 135 for our purpose.
0
 
LVL 23

Expert Comment

by:Tim Holman
ID: 2572918
Opening these ports will stuff up your browsing :

http://support.microsoft.com/support/kb/articles/Q135/4/64.asp?LNG=ENG&SA=ALLKB&FR=0

+if you use Cisco's IP helper, look at :

http://support.microsoft.com/support/kb/articles/Q190/9/30.ASP

You need the 139 nbsession port to establish a session to create the trust account.
0
 

Accepted Solution

by:
scottriley earned 100 total points
ID: 2577130
Have you tried adding the details of the domain controller into the LMHOSTS files, this helps your local machines easily resolve the NETBIOS name.
Provided your machines have routes in place for the IP network of the domain controller then it can route for the IP in the usual way.

Not the most "spangly" way of doing things but should work for you.
0
What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

 
LVL 2

Expert Comment

by:posivibe
ID: 2577252
nherron???? have you tried any of our suggestion?  is it fixed?
0
 
LVL 23

Expert Comment

by:Tim Holman
ID: 2579567
*gobsmacked*
0
 

Expert Comment

by:scottriley
ID: 2579574
Why Gobsmacked Tim?
0
 
LVL 2

Expert Comment

by:posivibe
ID: 2580251
I find that an interesting accepted answer because without port 139 you would be unable to create a trust.
0

Featured Post

Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The Need In an Active Directory enviroment, the PDC emulator provide time synchronization for the domain. This is important since Active Directory uses Kerberos for authentication.  By default, if the time difference between systems is off by more …
Many of us in IT utilize a combination of roaming profiles and folder redirection to ensure user information carries over from one workstation to another; in my environment, it was to enable virtualization without needing a separate desktop for each…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

947 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now