I had three sites in a hub and spoke configuration. Lets say router A was
the hub router and there were two spokes router B and router C. All were
2500 series routers ( 2501 ) running IOS 11.2 ip plus i think . There was no
complex configuration; simple static routes and everything was working fine.
The NT stations at each site were able to log on to the server placed at the
hub and everything was showeing up on the network neighbourhood. This was so
because i had defined the required helper addresses.
Then the need arose to add another site and the hub router A was replaced by
a cisco 2620. the same configuration was copied with ofcourse a few
additional static routes here and there and one more ip helper-address
statement for the new site. The new router was running IOS 12.1(1). The next
thing u know that still there is connectivity but when a new machine boots
on a remote site it is not able to find a domain controller. I had the
helper addresses defined properly but still nothing. Even the network
neighbourhood did not show all the machines; showed only the local machines.
Can anyone take a shot at this and guess what was the problem ?
Regards
Atif
P.S : I managed to figure it out after running a debug trace on UDP but
still i think it was an interesting prob and thought maybe someone could
give me a better explanation to it.
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