[c-nsp] Network Address Response

[sthaug at nethelp.no]

> No, I think he's asking why the router with address 10.0.0.5 responds
> to pings that have a destination IP of 10.0.0.4.  The echo request is
> targeted at a network address, not at the router.
> 
> I've also observed this behavior (more than ICMP though - I have a
> router responding to SNMP and being discovered by our configuration
> management team, on the network address of one of its interfaces) and
> would like to know more about why...

History. It *used to be* the subnet broadcast address, at least for
BSD Unix boxes and a bunch of other equipment.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no