Hi Mentioning DNS filters....it seems like I have some kind of issue with them. The primary zones are all 100% operational. However the secondary zones are still giving me grief. Event logs show; ISS Event ID 20009 DNS Zone Transfer from high ports detected from IP:11997 to IP:53 And Event ID 6525 Zone transfer request for secondary zone theoneinfront.com refused by master server at etc etc. Could the DNS filter be the issue? If so is there a solution? William -----Original Message----- From: Jim Harrison [mailto:Jim@xxxxxxxxxxxx] Sent: 26 October 2004 18:25 To: [ISAserver.org Discussion List] Subject: [isalist] RE: DNS server http://www.ISAserver.org Packet filters don't pass the traffic through the application filters. Thus, your DMZ-based DNS servers can't take advantage of the DNS intrusion filter ISA includes.. ------------------------------------------------------- Jim Harrison MCP(NT4, W2K), A+, Network+, PCG http://isaserver.org/Jim_Harrison/ http://isatools.org Read the help / books / articles! -------------------------------------------------------