Anton Emmerfors <anton@alfaskop.net> writes: > Hello, > > I have a problem: > > Since a few days something is sending out IGMP packages to 224.0.0.1 When my family added an iMac to our internal network I started getting a few IGMP packets each time the iMac powers up; don't remember the dest. address, but the source address was clearly the iMac's private ip address. Probably not what you've got, but thought I'd mention it just in case.