We are having one ASA5520 , ASA Version 7.2(2) (AIP-SSM Module integrated , IPS in Inline mode) which is the internal firewall . Behind it there are various VLANs where all the users sit . ASA connects to perimeter which is Checkpoint firewall which leads to internet . The issue is that when we try to do a FTP (CLI) from inside user IP Range 192.168.X.X(Hide NATTED for internet access) and download a file say around 5 MB , the downloading happens for a few minutes and gets stuck in between.We have tried connecting the machine just behind the checkpoint firewall (i.e without packet crossing ASA) and the same works fine . Please can any one tell me how to rectify the same . I am attaching few snapshots and some of the details with this post
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...