The incompatibility is just with what they ship
Xircom PCMCIA Ethernet Adapter Issues
Redhat 6.0 and Xircom Realport 10/100TX (LaJchon McRight)
Maybe this is too obvious... (David Hinds)
I understand.... (LaJchon McRight)
Date: 2000, Feb 29
From: David Hinds <email@example.com>
The incompatibility just means that RH6.0 does not include an
appropriate driver, not that the right driver won't work.
There are more detailed instructions in the PCMCIA-HOWTO, for how to
compile and install the PCMCIA driver package.
Thanks for the help by LaJchon McRight, 2000, Feb 29
to: "The incompatibility is just with what they ship"