discursively;354196 Wrote: > I upgraded to 7.2.1 and with it my SB3's firmware today. I got this > message from the Office of IT: > > Dear Simon, > > A device attached to the campus network is responding incorrectly to IP > broadcast traffic. > > The traffic is from hardware address: 0:4:20:12:48:7d which is > registered as the wireless address of the device. [viz., my SB3] > > When this device receives an IP broadcast packet from the campus and it > decides that it is not interested in the packet (or that something is > in > fact wrong with the packet), the device responds by sending an ICMP > error message. > > This is not correct behavior; no device should ever send an ICMP error > message in response to broadcast or multicast traffic. That's because > when many devices behave in this erroneous fashion, it creates very > large traffic spikes on the network, degrading network service for > everyone. On large networks, such as many that compose the campus > network, this is a real danger.(In certain situations, such behavior > can even result in self-sustaining broadcast storms that keep the > network unusable.) > > This sort of behavior can be caused by a bug in the device's IP stack, > requiring a bug fix from the vendor of the device. (In some unusual > situations, it may also be possible for a device to exhibit this > behavior as a result of incorrect configuration, but this is > uncommon.) > > Because this erroneous traffic degrades network service, OIT has > blocked it from using the campus wireless service. > > If you have any questions, please call the Help Desk or visit the > Solutions Center. The Help Desk is open 24 hours a day, 7 days a week. > The Solutions Center is open to walk-ins from 9am to 3pm, Monday > through Friday. > > Regards, > OIT Help Desk > > ~~~ > > It seems unlikely that these events (the upgrade and subsequent ICMP > errors) are unrelated; so: there is likely a bug in the latest > firmware. > > I thought I should post this here so as someone can investigate it > further. > > Cheers, > Simon
If you think that this is a real bug, you should create a bug report at http://bugs.slimdevices.com/. Otherwise, you may or may not get the attention of the technical staff at Logitech regarding this issue. -- maggior Rich --------- Setup: 2 SB3s, 1 duet, 1 receiver. SuSE 10.2 Server running SqueezeCenter 7.2.1, MusicIP, and SqueezeSlave http://www.last.fm/user/maggior ------------------------------------------------------------------------ maggior's Profile: http://forums.slimdevices.com/member.php?userid=9080 View this thread: http://forums.slimdevices.com/showthread.php?t=54045 _______________________________________________ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
