ub(7) —
NAME
ub − Ungermann-Bass PC NIC (Ethernet controller)
DESCRIPTION
The ub interface provides STREAMS access to the Ungermann-Bass PC NIC 10 MB Ethernet controller. The Data General PC Lan Controller also uses this driver.
The driver is provided with IEEE 802.2 LLC Class 1 and Ethernet encapsulation of data by the llc(7) driver. All communication with the ub driver is via function calls between ub and llc.
The ub driver supports promiscuous mode, as configured by llc. It receives and understands “trailer” packets, but does not generate them. Loopback is handled between the ub and llc drivers.
Configuration
The space.c file provides a mechanism for specifying the PC NIC board operating parameters to the driver. If a different interrupt vector or shared memory base address is necessary, the space.c file should be updated accordingly by means of the sysadm command.
SEE ALSO
\*U — Version 1.0