How does iptables determine which packets are multicast?

Question

Are packets assumed to be multicast solely based on their ip address? I've been looking at the RFC 1112 and a quick scan doesn't appear to indicate any other flags on the ip packet.

score 3 · Accepted Answer · answered Jan 15 '13 at 15:23

3

The IP multicast address ranges are defined in the standard. You have a look at them here and here.

answered Jan 15 '13 at 15:23

Khaled

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How does iptables determine which packets are multicast?

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