If you're running a small business with more than one computer, routers are usually a necessity. Routers provide small businesses with added security, a link between computer systems and extra ...

Yesterday, I noticed some really strange traffic coming from our mailserver. It was trying to connect to a loopback address (in the IANA space assigned for them, 127.0.0.0/8) on port 25. <BR><BR>I ...

Last week I was at Cisco Live in Orlando and met, yet again, some people that had been taught one must set the TTL to 2 for two directly connected routers to be able to eBGP peer between their ...

In loopback, an application sends a test message to the loopback address on a machine that is not delivered to the network but is instead returned to the sending application. Applications often use ...

In loopback, an application sends a test message to the loopback address on a machine that is not delivered to the network but is instead returned to the sending application. Applications often use ...