ICND1 & ICND2. CCNA Training. Graphical Network Simulator - GNS3.
How To enable Secure Shell (SSH) in Cisco IOS and disable Telnet. Using Telnet for remote administration of Cisco Routers and Switches (infact for any other device like a unix,linux or a solaris seerver) is not very secure as the data including the passwords are sent in clear text.
It will only be a matter of time for a malicous attacker who can sniff the packets to gain access to the passwords and infact the whole network. It is recommended that Secure Shell (SSH) is used for remote administration of Cisco Routers and Switches.
FREE CCNA Subnetting Tutorial: Practice IP Subnetting with examples. CCNA [Home] >> Learning Center>> Interactive Tutorials A short IP subnetting tutorial.
Subnetting is explained with examples. Post assessment exercises after the course gives you hands on practice.By the end of this subnetting course, you should be able to: Define subnet and subnet masks Understand IP subnetting maths Calculate Network addressDefine private addressSubnet an IP network in a given scenario To start the subnetting tutorial, click the start button in the flash demo below! Top Deals Of The Day: Top Deals Of The Day: If you are unable to view the interactive tutorial, you can get the Course Map in pdf format.