PATH ADC Home > Documentation > Hardware > Device Managers and Drivers > PCI Card Services > Designing PCI Cards and Drivers for Power Macintosh Computers

  

Receiving Packets

Incoming packets are passed to the client in DL_UNITDATA_IND messages. The dl_group_address field is set to 0 if the packet was addressed to a standard Ethernet address. It is set to keaMulticast if the packet was addressed to a multicast address and to keaBroadcast if the packet was addressed to a broadcast address, where kaeMulticast and kaeBroadcast are constants (currently 1 and 2, respectively).

The data portion of the message consists of everything following the protocol- dependent section.

© 1999 Apple Computer, Inc. – (Last Updated 26 March 99)