Cisco AAA and how to get Locked Out

Cisco AAA is a very important security tool to restrict access to your network equipments to only those who are Network administrators. It is an important topic for CCIE Lab and in real life as well. The problem with Network Security is that sometimes due to human error, the network gets so secured that even the Network Administrator does not get access to the equipments. To make such a mistake is very easy because not many people know what exactly goes on after enabling AAA. In this blog, we will look into ways of enabling AAA and possible ways to get out of lock out if there was a proper exit strategy. Continue reading

Free Internet Calls through Linksys PAP2

In this blog we are going to look into how a Linksys PAP2 Voice Adapter can be used to make free calls from one device to another over the internet or intranet.


This scheme can be implemented if you have offices in 2 or more locations and you want to enable calls from one office to another. The prerequisites for this is that you must have either Public ip address at both locations or you must be on the same intranet, either through VPN or through Leased lines. Prior to enabling VOIP, you must ensure that your ISP has not blocked VOIP as well as the VOIP ports are open on the Firewall. Continue reading