[f-nsp] bad G-rec

[Jethro R Binks]

On a FastIron Super-X, I get this message on the console from time to 
time:

Debug: May 17 14:44:11 IGMP: Warning! V3 mbr, bad G-rec1, #grp=1, 
G=224.0.0.251, pkt S=ip.ad.re.ss to 224.0.0.22, on v500 (phy e9/2), 
igmp_size=16

It is usually the same client as far as I can see.  What is the 
significance of this "Warning!", and what is a "bad G-rec1"?  Group 
received?  I only seem to pick this up in a very specific circumstance on 
the network which is a little puzzling.  Should I worry about it?

Jethro.

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Jethro R Binks, Network Manager,
Information Services Directorate, University Of Strathclyde, Glasgow, UK

The University of Strathclyde is a charitable body, registered in
Scotland, number SC015263.