On Thu, Jul 20, 2000 at 08:43:40AM +1000, DaZZa wrote:
> On Wed, 19 Jul 2000, Angus Lees wrote:
> > > Depends on the router involved. :-) Cisco's allow you to do so by adding
> > > one command to the configuration. :-)
> >
> > i like to set the broadcast address to .7, just to confuse newcomers
>
> That's somewhat dubious networking theory - I'm not going to be 100%
> obnoxious here, but I _seriously_ doubt this would work {unless .7 was the
> subnet boundary - I.E. using the .0 to .7 addresses, or a 255.255.255.248
> netmask}.
>
> Can you provide examples of how to do this, and proof it works? Off list,
> if you like, since it's prolly off topic a bit too far for SLUG.
easy:
ifconfig eth0 192.168.1.50 \
netmask 255.255.255.0 \
broadcast 192.168.1.7
the broadcast address is just another ip address that everyone listens
on, in addition to their unique address. what address is actually used
is just a convention.
some sites (very few now) actually use an "all zeroes" host id as the
broadcast address (instead of all ones), which kinda makes more sense,
since a directed broadcast then looks more like you are addressing the
network id.
obviously you still can't have a host attempting to use the broadcast
address as its host id.
--
- Gus
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