Monthly Archives: August 2009

Two Subnetworks on One LAN, and Linux arp_filter

Posted on August 31, 2009 by Robert

It’s a rare situation in a small networking environment that having two subnetworks on one broadcast domain can be an issue. I would normally avoid such a scenario (and it’s usually easy to do so) but I recently got AT&T’s … Continue reading →

Posted in Networking | 5 Comments

Beware of DVI-I Cables (they are Not Compatible with DVI-D Devices)

Posted on August 20, 2009 by Robert

I recently moved my flat-panel displays further away from my computer, but the DVI cables they came with weren’t long enough to connect the displays to the computer in their new location. So, I ordered some longer DVI cables from … Continue reading →

Posted in Personal Technology | 24 Comments

AT&T U-verse — A Network Geek’s Perspective

Posted on August 1, 2009 by Robert

I just got AT&T U-verse, which delivers Internet, TV (IPTV), and phone (VOIP) service to the home; all this over one pair of copper from the VRAD. My upgrades to the service include HD TV, DVR, and a static IP … Continue reading →

Posted in Networking | 1 Comment