Our servers have recently been facing quite heavy targetted DDoS attacks initiated through Proxy shields which is causing us huge trouble. I do not think I can find a better solution for this than a hardware device and by the time I check the details of Cisco Guard 5650 can some one please suggest as to what would be best in this situation ?
Cisco Guard DDoS mitigation appliances from Cisco Systems contribute to the industry's most complete and powerful family of solutions for detecting and defeating today's highly complex and sophisticated distributed-denial-of-service (DDoS) attacks.
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...
[toc:faq]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 and UDP are I...