I got a very intriguing email yesterday. It read:
I wonder if you can throw any light on the fact that my virus killer has warned me that there is a new internet connection on my router.
The IP address is 169.254.0.0
As you are a computer programmer I would like you to explain to me how you came to get a web address through my router when it is securely firewalled and why you would wish to do so?.
On selecting the address I was sent to the Bluebones.net website.
Your IP address should not be anywher near my computer system and I wish to know from you why it is before making any further judgements or decisions on what to do about it. I should be glad if you would proffer an explanation as urgent.
For a moment I thought I must have some horrible virus that was using my machine to go out and infect others. Then I thought about it for a minute and I realised what must have happened.
169.254.0.0 is not a valid IP address. It is part of a block reserved by IANA for showing errors in getting DHCP addresses.
So the browser of my “victim” must have tried to visit 169.254.0.0, failed to find a machine on that address and automatically taken him to the top search result for “169.254.0.0” which must have just happened to be my post, ‘Network Client Assigned 169.154 Address‘
Mystery solved. Probably.