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static routes 395configuring, 369developing security policies, 269-270importance of, 267maintaining, 275-276mitigation techniques, 273-274network attacks, 271-272port security, configuring, 56-58thinking like attackers, 268-269wireless security risks, 257wireless security standards, 258security appliances and applications,mitigation techniques, 273-274security communications, 274security violations, 57service set identifier (SSID), 261shared memory, 46shortcuts, CLI, 48-49show access-lists command, 289show cdp commands, 68show cdp interface command, 69show cdp neighbor detail, 11, 69show controllers command, 350show file systems command, 179-181show flash command, 185show frame-relay map command, 348show frame-relay pvc command, 348show interface status, 67show interfaces, 66, 171-174show interfaces command, 351show interfaces serial command, 349show interfaces status, 66show ip eigrp interfaces, 248show ip eigrp neighbors, 222-224,245, 249show ip interface brief, 11, 170, 239show ip interface command, 290show ip interface e0 command, 290show ip nat statistics command, 304show ip nat translations command, 304show ip ospf command, 241show ip ospf interface brief, 242-243, 248show ip ospf neighbor, 240, 245, 249show ip protocols, 153, 239-240, 245, 248EIGRP, 221RIPv1, 200show ip route, 11, 152, 170, 199, 239, 245RIPv1, 200show port-security command, 57show port-security interface command, 57show portsecurity interface, 94show run command, 304show running-config command, 170, 290show spanning-tree command, 83show version command, 162-163show vlan brief, 88-90show vtp status command, 98shutting down unused interfaces, 58site-local addresses, 141site-to-site VPNs, 320SMTP (Simple Mail Transfer Protocol), 15SNMP (Simple Network ManagementProtocol), 15spammers, 268Spanning Tree Protocol. See STPspanning-tree mode rapid-pvst, 84spanning-tree portfast default, 84speed mismatches, switches, 66-67split horizons, preventing routingloops, 155SSH, configuring access, 55-56SSID (service set identifier), 261standard ACLs, 280standard numbered ACLs,configuring, 282deny a specific host, 283deny a specific subnet, 283-284deny Telnet access to routers, 284permit specific network, 282-283star topology, Frame Relay, 340stateless autoconfiguration, IPv6, 142statementsdeny any, 279network, 247static addresses, 123static NAT, 299-301static routesconfiguring, 191-192default static routes, 194-197with exit interface parameter, 193-194with “Next Hop” parameter, 193