Hi guys/ladies
I have a cisco ASA5505, it runs a wide site to site VPN network and has 4 servers connected to it
10.50.15.4 > fileserver
10.50.15.5 > domain controller (exchange)
10.50.15.6 > terminal server
10.50.15.7 > terminal server
Now yesterday i removed 10.50.15.6 and replaced it with a new terminal server with the same ip address, ever since the ASA is blocking traffic between it and the domain controller (example)
| 2 | Oct 27 2012 | 14:51:05 | 106007 | 10.50.15.6 | 55978 | DNS |
| Deny inbound UDP from 10.50.15.6/55978 to 10.50.15.5/53 due to DNS Query |
What has me baffled is the only thing different between today and yesterday is the new server is windows server 2008 and the old one was windows server 2003. The new server has the same LAN ip address as the old one to make the changeover seamless for the users.
Any idea why all the sudden my ASA has decided to block the traffic between those machines? all the other machines can talk to it fine just not the domain controller, and seeing that this is a terminal server naturally you can see the problem i face!
Any help you can give would be great as this router has worked flawlessly for 2 years now without any config changes and i cant work out why its blocking traffic between those 2 machines.
