-
Recent Posts
Sybex
show command v.2 :(
show ip eigrp topology
show ip eigrp neighbors
show ip route
show ip protocol
show ip arp
show controller s0/0/0
show ip ospf
show ip ospf interface
show ip ospf neighbor
show ip ospf database
show frame-relay lmi
show frame-relay pvc
show frame-relay mapDebug commands:
debug ip nat
debug ip icmp
debug ip rip
debug ip routing
debug sw-vlan vtp events
debug (ip) eigrp packets
debug ip eigrp notification(fsm)(events)
debug ip ospf packet
debig ip ospf hello
debug ip ospf event
debug ip ospf adj
debug ppp authentication
debug frame-relay lmi
IEEE Standards:
Ethernet - 802.3
LLC - 802.2
FastEthernet - 802.3u
GigabitEthernet - 802.3ab
STP - 802.1d
RSTP - 802.1w
VLAN tagging - 802.1q (dot1q)
WLAN - 802.11a, 802.11b, 802.11g, 802.11n
1 byte = 8 bits
nibble = 4 bits
Ports
20 - FTP
21 - FTP
22 - SSH
23 - Telnet
25 - SMTP
53 - DNS
67 - DHCP
68 - DHCP
80 - HTTP
88 - EIGRP
89 - OSPF
69 - TFTP
161 - SNTP
443 - HTTPS
520 - RIP1024-65535
CCNA Topics 