Chapter 15

Network Security Protocols and Defensive Mechanisms

Network Security Protocols

We are increasingly concerned that we are not using wired Ethernet for PC access to the networks but are wirelessly connecting to access points, and our access link tends to be a variation of the 802.11 standard, with Wi-Fi Protected Access (WPA)2 for wireless security and Internet Protocol Security (IPSec) for encryption and routed network security. However, security issues continue to plague our networks. Border gateways between certain autonomous networks are used at the borders to facilitate communication across networks. Since these are located at the border of networks, they tend to be more vulnerable; therefore, we use Secure Border Gateway Protocols ...

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