Subject: Re: Adding [published] ARP entries for a subnet?
To: Jonathan Stone <>
From: Perry E. Metzger <>
List: tech-net
Date: 03/25/1996 10:44:26
Jonathan Stone writes:
> I'm wondering about adding the ability to do proxy-arp for an entire
> subnet. The reasons I'd find it useful is for things like installing
> an IP-level filtering router as a firaewll between some set of
> machines and their link to the Internet, without _either_ the local
> machines _or_ the ISP [sic] having to change anything.  Explicitly
> listing 512 machines for proxy arp is, well, gross...

Why would you need to use proxy arp for this? It doesn't make much
obvious sense. If you want a path to every host on a network, why not
just set up a route...