The current network code supports various brands of Ethernet cards. Most drivers were written by Donald Becker (becker@cesdis.gsfc.nasa.gov), who authored a family of drivers for cards based on the National Semiconductor-8390 chip; these have become known as the Becker Series Drivers. There are also drivers for a couple of products from D-Link, among them the D-Link pocket adaptor that allows you to access an Ethernet through a parallel port. The driver for this was written by Bjørn Ekwall (bj0rn@blox.se). The DEPCA driver was written by David C.-Davies (davies@wanton.lkg.dec.com).