RelativeResourceManager3

RelativeResourceManager3 - CprE 530 Lecture 13 General...

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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)
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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
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