my 2008R2 server DNS lof is flooded with error 5501 The DNS server encountered a bad packet from *.*.*.* Packet processing leads beyond packet length. The event data contains the DNS packet. why? thanks jc

Have a look to this Microsoft article about such error: http://support.microsoft.com/kb/198757 This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Mon site web: http://www.ahmedmalek.com Pour suivre mes publications d'articles / tutoriels, devenez membre de cette page sur Facebook: http://www.facebook.com/TunisianIT

Hello, please post an unedited ipconfig /all from the DC/DNS servers and also the used Forwarders ion the domain.Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

If you look at the event log data I bet you'll find they are all addresses at akamai.net Seems these servers dont support EDNS as yet hence the errors. To stop the event log errors you can turn off EDNS0 feature as described here. Some DNS name queries are unsuccessful after you deploy a Windows Server 2003 or Windows Server 2008 R2-based DNS server http://support.microsoft.com/kb/832223 Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows]

If you look at the event log data I bet you'll find they are all addresses at akamai.net Seems these servers dont support EDNS as yet hence the errors. To stop the event log errors you can turn off EDNS0 feature as described here. Some DNS name queries are unsuccessful after you deploy a Windows Server 2003 or Windows Server 2008 R2-based DNS server http://support.microsoft.com/kb/832223 Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows] disabing EDNS0 stopped the errors in the logjc

Yes, it did for me as well. Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows]

There is a fix for this now: DNS response packet is marked as invalid after you enable the EDNS probes feature on a DNS server that is running Windows Server 2008 R2 http://support.microsoft.com/kb/2739005

There is a fix for this now: DNS response packet is marked as invalid after you enable the EDNS probes feature on a DNS server that is running Windows Server 2008 R2 http://support.microsoft.com/kb/2739005