Seeing as though demon have still not provided me with the patch to our cisco router for the Cisco Security Advisory: Cisco IOS Interface Blocked by IPv4 Packets, I've sent their TAC email address our details so it will be interesting to see how long they take.
The annoying thing is that demon sent an advisory around over the weekend urging people to get their routers patched, so I sent a snotty email back to their support (and the md of demon) saying that I would actually like to do this!