Wireshark · Ethereal-users: Re: [Ethereal-users] hostid zero

[Guy Harris <gharris@xxxxxxxxx>]

Harimurti Widyasena wrote:

> I would like to ask question about my last work with Ethereal. I'm trying
> to listen to a server which send broadcast message on a particular port.
> Since I failed to do so, then I brought up Ethereal to see what was
> actually happening. I found out that the server did send broadcast message
> (dest. address ff:ff:ff:ff:ff:ff) but the IP address turned out to be
> 192.9.204.0. The host id is zero instead of ff(255) as I expected. Is this
> the reason I can't listen to the UDP broadcast send by the server ?.

It might be.

0's rather than 1's in broadcast IP addresses is a *really really really 
really really really really really really* ancient convention.  You 
might want to ask whoever manages that server why it's sending 
broadcasts to 192.9.204.0 rather than 192.9.204.255.