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Name: Realtek 8139D 100BaseTX
Currently have this NIC but the Realtek drivers do not currently detect this card.
Name: Realtek 8139D 100BaseTX [DSE PCI NIC 10/100Mbps WOL V2 (XH7975)]
And on further investigation - found it to be a Dick Smith Electonics card.
The vendor ID is clearly wrong. Could you please send a `lspci -vvx' dump to email@example.com?