Tag Archives : tcp

Multiple vulnerabilities exist in the Cisco PGW 2200 Softswitch series of products and they are related to processing Session Initiation Protocol (SIP) or Media Gateway Control Protocol (MGCP) messages. SIP is a popular signaling protocol used to manage voice and video calls across IP networks such...

After my last post, some readers were asking what tool did I used for testing the QoS and how satisfied I’m with it. The name of the tool is Packgen. According to its developer developers, “Packgen is a simple network packet generator handling diffserv markers, useful for testing network...

Every now and then, all network engineers have to deal with some kind of network attack.  Usually, the attack does not target the network devices, but the machines that provide services (e.g. www, database hosting…), because it’s more easy to find on the Internet a script that is probing...

Sometimes you have a connection between 2 routers that you want to test with something more than a ping. Cisco devices have a hidden command which is actually a very powerful testing tool for your TCP connection. The command is “ttcp” and you will not find it in the the default list of commands...