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Re: Proxy ARP


On Wed, Aug 07, 2019 at 08:01:23AM -0700, Andy Ruhl wrote:

> What is the modern need for this?

I've used proxy arp to embed a few mobile workstations behind a PPP link
into some lan (arp .... proxy in the link-up script, and arp -d in the
link-down script).

The proxyarpd's README I've (later) read had a similar usecase - 
connecting two lans through a machine (or two machines with a PPP link).

This was when most LANs were physically broadcasting media (Real
Ethernet (tm)) and el cheapo people didn't have bridges and operating
systems didn't have bridge devices.

Also - when you didn't have enough addresses to get another 'net, but
a hole big enough to loan it on the other physical LAN...

But you asked about MODERN needs, so ignore this old mans memories.


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