[NTLUG:Discuss] Routing BROADCAST messages.

[lee@brave.com]

Steve Baker wrote:
> 
> What the heck is 'dummy0' anyway?

from /usr/src/linux/Documentation/Configure.help

Dummy net driver support
CONFIG_DUMMY
  This is essentially a bit-bucket device (i.e. traffic you send to
  this device is consigned into oblivion) with a configurable IP
  address. It is most commonly used in order to make your currently
  inactive SLIP address seem like a real address for local programs.
  If you use SLIP or PPP, you might want to say Y here. Read about it
  in the Network Administrator's Guide, available via FTP (user:
  anonymous) from ftp://metalab.unc.edu/pub/Linux/docs/LDP. Since this
  thing often comes in handy, the default is Y. It won't enlarge your
  kernel either. What a deal.

  If you want to compile this as a module ( = code which can be
  inserted in and removed from the running kernel whenever you want),
  say M here and read Documentation/modules.txt. The module will be
  called dummy.o. If you want to use more than one dummy device at a
  time, you need to compile this driver as a module. Instead of
  'dummy', the devices will then be called 'dummy0', 'dummy1' etc.