E

EBGP (external BGP), 78 EIGRP (Enhanced IGRP), 62-63

example configuration, 64-66 election process (DRs), disabling, 75 e-mail attacks, 371 SMTP, 127-128 enable passwords, setting, 180 enabling

DNS lookup on Cisco routers, 112 FastEther Channel, 31

HSRP, 49

Nagle algorithm, 376 portfast on Cisco switches, 31 sequence numbering, 378 TCP intercept, 379 encapsulation, 26 HDLC, 80 LCP, 82 PPP, 81 encrypting passwords, 181 encryption technologies, 235 3DES, 238 DES, 237-238 Diffie-Hellman, 240-241 DSS, 238-239 IPSec, 242

AH, 244-246 ESP, 243-244 MD5, 239-240 principles of, 235-237 ESP (Encapsulation Security Payload), 243-244 establishing Telnet connections, 179 Ethernet bridge port states, 31 CSMA/CD, 27 FEC, 31

intefaces, states of, 165 media specification, 27-28 spanning tree, 30 exam

FAQs, 576 objectives, 4-7 preparing for, 3, 7-8, 575 study tips, 569-570 example configurations, EIGRP, 64-66 extended access lists, 187-189

options, 188-189 external links, 68

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