DNS issues after a firewall BGP change?

[Mike Sizemore]

Hey everyone,

I installed a set of 2911 cisco routers with BGP and two active/standby 5510 Firewalls at a customers location.  Now the customer is having a DNS issue.  Some website work correctly while some are not.   Has anyone had this type of issue before?

I can post configs if anyone would like.

Thanks!

[Collin Clark]

In the ASA check that under the DNS Policy Map that the size for the client is auto or something above 900.

policy-map type inspect dns preset_dns_map

parameters

  message-length maximum 900