31 Mar
2006
31 Mar
'06
6:33 a.m.
On Fri, 31 Mar 2006, Owen DeLong wrote:
Unicast currently ends at 223.255.255.255. 224.0.0.0/4 is multicast and I believe that 240.0.0.0/5 248.0.0.0/6 252.0.0.0/6 are listed as reserved for experimental purposes.
From RFC3330:
240.0.0.0/4 - This block, formerly known as the Class E address space, is reserved. The "limited broadcast" destination address 255.255.255.255 should never be forwarded outside the (sub-)net of the source. The remainder of this space is reserved for future use. [RFC1700, page 4] -- Mikael Abrahamsson email: swmike@swm.pp.se