Behaviour of Cards Under Multicast
This is how they currently behave, not what the hardware can do–for example,
the Lance driver doesn’t use its filter, even though the code for loading
it is in the DEC Lance-based driver.
The following are requirements for multicasting
AppleTalk Multicast hardware filtering not important but
avoid cards only doing promisc
IP-Multicast Multicast hardware filters really help
IP-MRoute AllMulti hardware filters are of no help
Board Multicast AllMulti Promisc Filter
3c501 YES YES YES Software
3c503 YES YES YES Hardware
3c505 YES NO YES Hardware
3c507 NO NO NO N/A
3c509 YES YES YES Software
3c59x YES YES YES Software
ac3200 YES YES YES Hardware
apricot YES PROMISC YES Hardware
arcnet NO NO NO N/A
at1700 PROMISC PROMISC YES Software
atp PROMISC PROMISC YES Software
cs89x0 YES YES YES Software
de4x5 YES YES YES Hardware
de600 NO NO NO N/A
de620 PROMISC PROMISC YES Software
depca YES PROMISC YES Hardware
dmfe YES YES YES Software(*)
e2100 YES YES YES Hardware
eepro YES PROMISC YES Hardware
eexpress NO NO NO N/A
ewrk3 YES PROMISC YES Hardware
hp-plus YES YES YES Hardware
hp YES YES YES Hardware
hp100 YES YES YES Hardware
ibmtr NO NO NO N/A
ioc3-eth YES YES YES Hardware
lance YES YES YES Software(#)
ne YES YES YES Hardware
ni52 <—————— Buggy ——————>
ni65 YES YES YES Software(#)
seeq NO NO NO N/A
sgiseek <—————— Buggy ——————>
smc-ultra YES YES YES Hardware
sunlance YES YES YES Hardware
tulip YES YES YES Hardware
wavelan YES PROMISC YES Hardware
wd YES YES YES Hardware
xirc2ps_cs YES YES YES Hardware
znet YES YES YES Software
PROMISC = This multicast mode is in fact promiscuous mode. Avoid using
cards who go PROMISC on any multicast in a multicast kernel.
(#) = Hardware multicast support is not used yet.
(*) = Hardware support for Davicom 9132 chipset only.
