[nsp] routing of 224.0.0.0/24

[Victor Sudakov]

Oliver Boehmer (oboehmer) wrote:
> Hi Victor,
> 
> 224.0.1.40 is not part of 224.0.0.0/24 :-)

Oops, shame upon me.
Thank you.

> 
> 224.0.1.40 is used to advertise RP-to-group mapping (Auto-RP) in PIM-SM
> networks. See http://www.cisco.com/warp/public/105/48.html 
> 
> 	oli
> 
> > -----Original Message-----
> > From: Victor Sudakov [mailto:sudakov at sibptus.tomsk.ru] 
> > Sent: Montag, 10. Februar 2003 06:00
> > To: cisco-nsp at puck.nether.net
> > Subject: [nsp] routing of 224.0.0.0/24
> > 
> > 
> > Dear Colleagues,
> > 
> > According to http://www.iana.org/assignments/multicast-addresses
> > the 224.0.0.0/24 block is not routable.
> > Why do I see it in the Multicast Routing Table ?
> > 
> > 
> > 
> > kedrovy#sh ip mroute 
> > IP Multicast Routing Table
> > Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, 
> > C - Connected,
> >        L - Local, P - Pruned, R - RP-bit set, F - Register flag,
> >        T - SPT-bit set, J - Join SPT, M - MSDP created entry,
> >        X - Proxy Join Timer Running, A - Candidate for MSDP 
> > Advertisement,
> >        U - URD, I - Received Source Specific Host Report, s - SSM
> > Outgoing interface flags: H - Hardware switched
> > Timers: Uptime/Expires
> > Interface state: Interface, Next-Hop or VCD, State/Mode
> > 
> > (*, 224.0.1.40), 3d23h/00:00:00, RP 0.0.0.0, flags: DCL
> >   Incoming interface: Null, RPF nbr 0.0.0.0
> >   Outgoing interface list:
> >     Serial0, Forward/Dense, 14:31:15/00:00:00
> >     Ethernet0, Forward/Dense, 14:31:34/00:00:00
> > 
> > kedrovy#
> > 
> > Does it mean that these datagrams are being forwarded though they
> > should not?  Thanks a lot for any input.
> > 
> > -- 
> > Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
> > _______________________________________________
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> > http://puck.nether.net/mailman/listinfo/cisco-nsp
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> > 

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN