RelativeResourceManager3 - CprE 530 Lecture 13 General...

Info icon This preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
CprE 530 Lecture 13 General countermeasures Since IP is so ingrained in the Internet it is hard to provide security. There are a few general countermeasures. – IP Filtering – Network Address Translation (NAT) – Virtual Private Network (VPN) – Encrypted IPV4 & IPV6 (IPSec)
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
IP Filtering Routers can be configured to filter out packets based on: – IP Address (black listing) Hard to keep list current Hard to get off the list (DOS) – Port numbers Rogue protocols use multiple ports – Protocol types (TCP, UDP, ICMP) Course grain filtering Network Address Translation
Image of page 2