Currently Being ModeratedSep 27, 2012 4:24 AM (in response to cat-tamer)
You appear to have several bad or misconfigured IPv6 hosts accessible on your network; these log messages are the result of receiving an unexpected address, per RFC 3810.
The following should silence the messages...
> System Preferences > Network > select the active controller > Advanced > TCP/IP > Configure IPv6 > Off
Though I'd also wonder if your network is open much more widely than you might expect; if you've got an open IPv6 connection or tunnel active somewhere, and that's forwarding traffic around.
And the obvious question: Did anything change in the last 24 hours on your local network?
Currently Being ModeratedSep 27, 2012 6:16 AM (in response to MrHoffman)
We are colocated, so I am not sure if they have changed network settings overnight.
My IPv6 Network settings are set to automatically. Will try to change that to OFF when I have remote hands available.
Currently Being ModeratedSep 28, 2012 3:16 PM (in response to cat-tamer)
Co-location? It's anybody's guess what's on that network, or what it might be up to, then.