Hi guys, I really appreciate somebody could help me.
I have an ASA 5520 Version 8.0(4) in my network with default inspection, suddenly many users where having RPC errors when they arrive to work and turn on their computers.
The users told us that they had changed their DNS configs, so we call the system guy in that site and told us that they have update their Active directory servers to a windows 2008 R2, so we troubleshoot a little and we found that when we remove dns_preset_dns_map, the error dissapear. Could
somebody have any idea about this???
policy-map type inspect dns preset_dns_map
message-length maximum 512
inspect h323 h225
inspect h323 ras
inspect dns preset_dns_map
ips inline fail-open
service-policy global_policy global
This is really a big problem because we have about 70 ASA with the same default inspection and there´s no problem.
If somebody could help, i would appreciate