Resource Areas

• Cisco Command Lookup Tool
• Cisco IP Subnet Calculator
• Cisco 2600/3600/3700 Memory Calculator
• TAC Case Collection
• TAC Advanced Search Page
• Cisco Technical Support Advisor
• Cisco Download Area
• Cisco Software Advisor
• Cisco Output Interpreter
• Cisco Documentation Connection (This site is probably the single most important area on the TAC--every document about Cisco technologies can be found here.)
• Cisco Feature Navigator -- Cisco Feature Navigator is a web-based application that allows you to quickly find the right Cisco IOS and CatOS Software release for the features you want to run on your Network.

Most of the areas on Cisco's TAC website are secured.  To gain access you will need to register for a CCO Logon.  Click here to be redirected to the Cisco registration site.

• WildPackets IP Subnet Calculator -- My favorite IP Subnet Calculator--maybe we should all petition Cisco to allow us to use this program during exams!!
• Angry IP Scanner -- Excellent tool for network discovery and port scanning.
• Secure IOS Template -- This secure IOS template was put together by Rob Thomas of CYMRU.  It provides a good starting point for edge router configurations.
• IANA (Internet Assigned Numbers Authority) -- This link is to a list of all IP protocol port numbers.
• WEP Key Generator -- Useful online utility to generate random WEP keys and other shared secrets.