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is "not multicast" supposed to include broadcast?


From: Rick Jones <rick.jones2 () hp com>
Date: Tue, 10 Jul 2012 15:27:38 -0700

I'm messing about with some link-layer stuff, and in the testing thereof I've experimented with sending to a broadcast address. However, when I say:

tcpdump -i eth0 not ip and not multicast and not arp

I do not see my broadcast frame being sent (which is neither IP, nor ARP, but is an 802.2 TEST frame) However if I drop "and not multicast" I will see my broadcast frame.

Given there is also an alias for broadcast that behaviour seems incorrect - "not multicast" should still show broadcast. Thoughts?

This is with 4.1.1 and libpcap 1.1.1.

rick jones
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