There's a good IANA description here
http://www.iana.org/assignments/multicast-addresses/multicast-addresses.xml
224.0.0.0 - 225.0.0.255 is link local with TTL of 1
-- BR Tony Sent from my iPhone on 3 On 17 Mar 2013, at 17:24, Imran Ali <immrccie_at_gmail.com> wrote: > * > Hi all, > > i am not sure how calculations are made for wildcard mask for multicast > gorups ? > > what ranges are covered on /4 or /5 Any link ? > > > Rack1R3#show ip pim rp mapping > * > > PIM Group-to-RP Mappings > > *Group(s) 224.0.0.0/5* > > RP 150.1.8.8 (?), v2v1 > > Info source: 150.1.1.1 (?), elected via Auto-RP > > Uptime: 00:00:23, expires: 00:02:33 > > *Group(s) 224.0.0.0/4* > > > Blogs and organic groups at http://www.ccie.net > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html Blogs and organic groups at http://www.ccie.netReceived on Sun Mar 17 2013 - 17:49:43 ART
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