On Mon, 25 Jun 2001, Jason R. Seats wrote: > max wrote: > > > > 224.0.0.0-239.255.255.255 are multicast addresses. That machine is > > probably somehow misconfigured and is trying to talk to a multicast group, > > to be more precise, is trying to join a multicast group. Might be a > > software issue, if that machine is running something like cuseeme (or any > > other real time conferencing software) software, that could explain it. > > It is happening from every machine on the local subnet, with some > occasional traffic to other mcast ip's like: > > SVRLOC.MCAST.NET.427 > SVRLOC-DA.MCAST.NET.427 > MICROSOFT-DS.MCAST.NET.42 Sounds like an open and shut case of Microsoft machines blurting their packets all over town. > also, > IGMP to 224.0.0.2 This is mostly seen with RIP. None of these should in itself be a problem. However if every workstation starts to yell this all over the network you may find that a switched network is taking a significant hit. It seems that every generation of windows is sending out more broadcasts then the previous ones. Sounds like a lot of fun. Hugo. -- All email send to me is bound to the rules described on my homepage. hvdkooijat_private http://hvdkooij.xs4all.nl/ Don't meddle in the affairs of sysadmins, for they are subtle and quick to anger. ---------------------------------------------------------------------------- This list is provided by the SecurityFocus ARIS analyzer service. For more information on this free incident handling, management and tracking system please see: http://aris.securityfocus.com
This archive was generated by hypermail 2b30 : Wed Jun 27 2001 - 17:20:17 PDT