Can not set domain trust relationship

[CeeBee]

We are trying to set a domain trust relationship between offices. Our office is in US, the other office is in Europe.
We are all connecting through the Corporate office that is in US. I can ping the domain controller from Europe, they can ping ours, but establishing a trust fails with the message "a domain controller for the xxxx domain could not be contacted"
I should mention that we are currently using different subnets.
(private IP addresses though...) They have Win2k servers, We have NT4 but also fails when trying with a new Win2k domain I have set up for test purposes. However I can establish the trust between the local domains. Any ideeas?

[Ya_know]

You need to focus some more on providing information about the WAN. How are you connecting, what equipment is at each end...Definately have to start there first...

[CJK]

Here is an MS article with the steps to create this trust between NT4 and 2000.
Setting up a trust between NT4 and 2000

If you have followed the above try creating a lmhosts file.
Creating a lmhosts file

Also if you have more than one W2K at the Euro location make sure the one you are pointing to is labeled as a DC.

[CeeBee]

Ok, more info...
Even more I've just found out that I can't set the trust with the Corporate office. At our end there is a 2600 series Cisco router making the link to a T1 line. At their end I have no ideea what equipment they have but I'm sure it is something similar since they gave us this router to enable voice over IP for the inter-office phone system. Other inter-office applications such as Lotus Domino mail and Oracle are working fine, internet access is also fine.
Our subnet is 7.7.7.0/24 and their subnet is 192.168.50.0/24

[CeeBee]

Originally posted by CJK
Here is an MS article with the steps to create this trust between NT4 and 2000.
Setting up a trust between NT4 and 2000

If you have followed the above try creating a lmhosts file.
Creating a lmhosts file

Also if you have more than one W2K at the Euro location make sure the one you are pointing to is labeled as a DC.

Didn't work...
The server I am pointing to is a DC.