Cisco
Repair
Cisco IOS recovery via xModem
Cisco Password recovery for 2900XL, 3500XL, 2940, 2950, 2960, 2970, 3550, 3560, and 3750 series switches
Remove certificates
Rapidshare Cisco IOS download link
Official Cisco IOS download link
Commands
Router Command Reference (short)
Switch Command Reference (short)
Cisco Catalyst 2950 Command Reference
Cisco Catalyst 2960 Command Reference - 1
Cisco Catalyst 2960 Command Reference - 2
Cisco Catalyst 3560 Command Reference
Basic configurations
Router Basic Configuration
Switch Basic Configuration
Example configurations
Switching with RIP
Switching with OSPF
Switching with EIGRP
VTP3 / NTP example
Authentication
PPP - PAP
PPP - CHAP
ACL
Standardna brojčana Access lista
Proširena brojčana Access lista
DHCP
DHCP
DHCP relay
NAT i PAT