So I'm trying to play with ifenslave under UML, and my naieve attempt to go
./linux LD_ASSUME_KERNEL=2.4.1 eth0=daemon,11:11:11:11:11:11 \
eth1=daemon,22:22:22:22:22:22 rootfstype=hostfs rw init=/bin/sh
Led to unexpected results that eth0 had a mac addr of 00:00:00:00:00:00.
Eventually, I tracked it down to this test in arch/um/drivers/net_kern.c:
if(addr[0] & 1){
printk(KERN_ERR
"Attempt to assign a broadcast ethernet address to a "
"device disallowed\n");
return(0);
}
My question is: where's the spec for what is and isn't a broadcast address?
RFC 894 says that "the" ethernet broadcast address is (only) FF:FF:FF:FF:FF:FF
http://www.freesoft.org/CIE/RFC/894/
So does Ethereal's wiki:
http://wiki.ethereal.com/Ethernet
Confused?
Rob
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