31 Days Before Your CCNA Exam

NCPs (Network Control Protocols) 391LSDB (link-state database), building,156-157LSR (link-state request) packets,OSPF, 228LSU (link-state update) packets,OSPF, 228-229MMAC (Media Access Control) sublayer, 34MAC addresses, switch forwarding, 45MAC database instability, STP, 79MAC sublayer, 34maintaining security, 275-276maintenance threats, 271malicious code attacks, 272man-in-the-middle attacks, 272management VLAN, 73managingaddresses, IPv6, 142IOS images, 183backing up, 184restoring, 185-186manual summarization, EIGRP, 217-218MCT (manually configured tunnels), 143media, 5-6networking, 5standards for LAN cabling, 6Media Access Control (MAC) sublayer, 34memory, 162memory buffering, 46message-of-the-day (MOTD), 169messagesEIGRP, 212OSPF, 227-228RIPv1, 197methodologies, troubleshooting, 61-62metrics, dynamic routing metrics, 152-153Metro Ethernet, Internet connections(WAN), 319MIST (Multiple Instances of SpanningTree), 82mitigation techniques, 273host and server security, 273intrusion detection and prevention, 273security appliances and applications,273-274modelsnetwork models, benefits of, 13OSI models, 13layers, 14-15PDUs and encapsulation, 16TCP/IP models, 13-16modes of VTP, 77modifyingEIGRP metrics, 219-220Hello intervals and hold timesEIGRP, 220-221OSPF, 238-239OSPF metrics, 236-237MOTD (message-of-the-day), 169multicast addresses, 38multilink PPP, LCP, 333multiple frame transmission, STP, 79Multiple Instances of Spanning Tree(MIST), 82municipal Wi-Fi, 319mutual authentication, wirelesssecurity, 257Nnamed ACLs, configuring, 286-287naming conventions, IOS, 182-183NAT (Network Address Translation), 297benefits of, 300configuring, 356, 362-363dynamic NAT, 299-302example of PC1 sending traffic toInternet, 298-299inside global address, 297inside local address, 297limitations of, 300outside global address, 297outside local address, 297overloading, 300static NAT, 299-301troubleshooting, 304-305verifying, 303-304NAT overload, 299-300, 303native VLAN, 73navigation, CLI, 48-49NBMA (nonbroadcast multi-access),Frame Relay, 340NCPs (Network Control Protocols), 332