I am including the output from our companies ASA 5520. I am wondering if this strange output could be due to ARP Spoofing, and if so what should be my next step?
WRMC-ASA# show arp outside 24.XXX.XX.XX 0002.fc67.8166 64 - (This entry appears to be fine) outside 24.XXX.XX.XX 0002.fc67.8166 777 - (This entry appears to be fine) outside 172.16.15.1 0002.fc67.8166 1553 - (**This is the entry that I am concerned about) inside 172.16.15.1 0011.bcc7.9440 1636 - (This entry appears to be correct) dmz-1 192.168.101.11 000e.0c6e.a0f4 219 - (This entry appears to be correct)
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...