169.254.0.0 and Zone Alarm

My PC is connected to the Net via cable and there are no other PCs
attached.

I left my PC to do some P2P downloading. When I got back Zone Alarm
said it had detect a new Private Network with an IP address of
169.254.0.0.

The screen had frozen and I had to do a reboot. On rebboting Zone
Alarm didn't ask about 169.254.0.0 again.

WHOIS tells me nothing about 169.254.0.0. Does anyone know what IP
address it is?

Sandi

"Sandi" <> wrote in message
news:9617B04698BD74C1H4@194.168.222.125...
> My PC is connected to the Net via cable and there are no other PCs
> attached.
>
> I left my PC to do some P2P downloading. When I got back Zone Alarm
> said it had detect a new Private Network with an IP address of
> 169.254.0.0.
>
> The screen had frozen and I had to do a reboot. On rebboting Zone
> Alarm didn't ask about 169.254.0.0 again.
>
> WHOIS tells me nothing about 169.254.0.0. Does anyone know what IP
> address it is?

Pasted from: http://www.howtonetworking.com/ipconfig.htm#Why

Symptom: The Internet Assigned Numbers Authority (IANA) has reserved
169.254.0.0-169.254.255.255 for Automatic Private IP Addressing. If the
computer can't get ip from DHCP, APIPA provides an address that is
guaranteed not to conflict with routable addresses.

Mysteron

On Sat, 12 Mar 2005 17:19:01 GMT, Sandi <> wrote:

>My PC is connected to the Net via cable and there are no other PCs
>attached.
>
>I left my PC to do some P2P downloading. When I got back Zone Alarm
>said it had detect a new Private Network with an IP address of
>169.254.0.0.

This means that your PC lost its internet connection, and was unable
to get an IP address. Any 169.x.x.x address is only assigned when all
else fails and your Pc can't find your ISPs server.

From ZA's point of view, its completely harmless. From your point of
view, it means your internet connection fell over. You may want to
explore why.

Mark McIntyre

Sandi wrote:

> My PC is connected to the Net via cable and there are no other PCs
> attached.
>
> I left my PC to do some P2P downloading. When I got back Zone Alarm
> said it had detect a new Private Network with an IP address of
> 169.254.0.0.
>
> The screen had frozen and I had to do a reboot. On rebboting Zone
> Alarm didn't ask about 169.254.0.0 again.
>
> WHOIS tells me nothing about 169.254.0.0. Does anyone know what IP
> address it is?

This is a non routable IP address similar to 10.x.x.x and 172.16-172.31 and
192.168.x.x. Windows will also default to it if it can not get an IP
address....

Michael

Michael J. Pelletier

In ntl.discussion.broadband.cm Sandi <> wrote:
> WHOIS tells me nothing about 169.254.0.0. Does anyone know what IP
> address it is?

Have a look at RFC3330

http://www.ietf.org/rfc/rfc3330.txt


Andy

Andy