Multimedia Traffic Control with IP Multicast (IGMP)

More on IGMP Operation

Table 12-1.Well-Known IP Multicast Address Groups Excluded from IGMP Filtering

Groups of Consecutive Addresses in the Range of 224.0.0.X to 239.0.0.X*

Groups of Consecutive Addresses in the Range of 224.128.0.X to 239.128.0.X*

224.0.0.x

232.0.0.x

224.128.0.x

232.128.0.x

225.0.0.x

233.0.0.x

225.128.0.x

233.128.0.x

226.0.0.x

234.0.0.x

226.128.0.x

234.128.0.x

227.0.0.x

235.0.0.x

227.128.0.x

235.128.0.x

228.0.0.x

236.0.0.x

228.128.0.x

236.128.0.x

229.0.0.x

237.0.0.x

229.128.0.x

237.128.0.x

230.0.0.x

238.0.0.x

230.128.0.x

238.128.0.x

231.0.0.x

239.0.0.x

231.128.0.x

239.128.0.x

*X is any value from 0 to 255.

Devices such as the HP Procurve Series 5300XL and the HP Procurve switch 1600M/2400M/2424M/4000M/8000M having static Traffic/Security filters configured with a “Multicast” filter type and a “Multicast Address” in this range will continue in effect unless IGMP learns of a multicast group destination in this range. In that case, IGMP takes over the filtering function for the multicast destination address(es) for as long as the IGMP group is active. If the IGMP group subsequently deactivates, the static filter resumes control over traffic to the multicast address formerly controlled by IGMP.

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