Re: Unable to Ping from an Inside Host to DMZ Webservers
The "icmp" commands only affect traffic TO the PIX itself, not THROUGH it. By default the PIX will only open holes for return traffic for TCP/UDP based traffic, not ICMP. To get it to allow your return ICMP packets back in you have to turn on ICMP inspection. Use the:
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...