These tools can help you to diagnose problems with your Ethernet cards or - in some cases - give those cards the final hint, to work in your network.

alta-diag : Diagnostic and setup for the Sundance "Alta" NIC
eepro100-diag : Diagnostic and setup for the Intel EEPro100 Ethernet cards
epic-diag : Diagnostics and EEPROM setup for the SMC EPIC-100
myson-diag : Diagnostic and setup for the Myson mtd803 Ethernet chip
natsemi-diag : Diagnostic and setup for the NatSemi DP83815 Ethernet chip
ne2k-pci-diag : Diagnostics and EEPROM setup for PCI NE2000 clones
ns820-diag : Diagnostic and setup for the NatSemi DP83820 Ethernet chip
pcnet-diag : Diagnostic and setup for the AMD PCnet/PCI Ethernet chip
rtl8139-diag : Diagnostics and EEPROM setup for RealTek RTL8129/8139 chips
starfire-diag : Diagnostic and setup for the Adaptec Starfire DuraLAN
tulip-diag : Diagnostic and setup for the Digital DC21x4* Ethernet chips
via-diag : Diagnostic and setup for the VIA Rhine vt86c100 and vt3043
Ethernet chips
vortex-diag : Diagnostics and EEPROM setup for the 3Com Vortex series
winbond-diag : Diagnostic and setup for the Winbond w89c840 Ethernet cards
yellowfin-diag: Diagnostic and setup for the Packet Engines Yellowfin chips
pci-config : Show and manipulate PCI configuration space