Create a custom signature to rate limit (packet/sec) on IPS 4200?
There's a lot of public and simple tool to flood attack a host with TCP, UDP packet. These tools can send TCP/UDP packet very fast and quickly bring down weak network devices & servers.
We are going to public a website and i'm worry about risk of attacking. I put IPS 4260 in DMZ to protect server. When I turn on default signature, it can not prevent DoS flood attack.
So could you please help to me create a custom signature that can check packet per second? For example, if there are more than 10 pps, IPS must deny attacker inline or something... I have tried to make a custom signature based on Flood Net engine, set the rate, gap, but I dont really understand these parameters and it does not work.
Please guide me something to do that. Thank you very much.
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...