Having an issue with repeated Shunned Packets in the ASFM Syslog. I was going to call support, however I'm not sure if I can even explain the issue, if there even is an issue, that is why I need your help.
I'm Getting a constant stream of Shunned packets in yellow. The 69.x.x.x are my DNS Servers in the DMZ.
Shunned packet: 184.108.40.206 ==> 69.x.x.91 on interface outside Shunned packet: 220.127.116.11 ==> 69.x.x.92 on interface outside
I noticed this when I moved them to my VMware server, however I do not know if I was getting this before I moved or not.
Cisco Adaptive Security Appliance Software Version 9.1(4)
Device Manager Version 7.1(5)
Cisco Adaptive Security Appliance Software Version 9.1(4) Device Manager Version 7.1(5)
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...