Hello, On Mon, Jun 16, 2008 at 12:38:03PM +0300, Jabka Atu wrote: > Hello,... > > I work in a IT-Network help desktop (help desk that is designed to > fix/assist in network problems) and few weeks ago i got a call from a > service Technion that asked me to check ips that end in 255. > > At first i didn't believe him (thought he was making a prank on me or > just being an #$$). > Any way i tested and i was able to find the problem (the pc had a buggy > card) but i started to wonder - > since ip 255 is for broadcasting how is it that even go tru routers ? > > while it is possible to use ip such as 10.15.0.0 broadcast 10.15.255.255 > (and 10.15.15.255 can be used) but Afair it should not be transfered via > routers (as 169.254.x.x).
As far as I known That was true when only class A, B and C networks did exists. The actual definition is, that the broadcast address is always the highest address of the network. So if you hav a Network 10.0.0.1/255.255.254.0, the address 10.0.0.255 is a normal ip-Adress of this network, and has to pass all routers. The Broadcast adress of this network is ONLY 10.0.1.255. HTH, Axel -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
