Re: Is there any perfomance difference between Cisco PIX and ipt
Certainly, exist differences between both implementation, but they run as the same principle of the ipfilter, you may wan to consider things like failover, stateful failover, easy user administration using CSPM and PDM, IP Nat Pools and certainly a better NAT performance, I been using FreeBSD working with different user ranges to perform NAT-PAT and I seen that 500 users equal to 16% NATD processes its enough for the daemon, you may consider the option to configure NAT in the router and filter in the Linux Box , or create some scripts to lease arps entrys to Statics translations in a dynamic way to a better performance.
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...