How can I tell what a PIX is going to Proxy ARP for. Is there a command I can use to easily determine this, or do I need to look through the config and manually work out what the PIX will Proxy ARP for? Thanks.
Proxy arp allows the pix to respond to arp requests for hosts behind it. So when an arp request is made for an outside host, the pix will respond with it's own mac-address, receive the IP packets and forward them on to the host. Without proxy arp outside hosts would not be able to reach the inside server and vice versa. In a nutshell PIX will proxy arp for all packets that will come to one of its interfaces and leave from the other interface.
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...