[rbridge] ARP <whatever> (was it's time to summarize things)

[Joe Touch]

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Gray, Eric wrote:
> Joe,
> 
> --> I'm not aware ARP Replay being called Proxy ARP - is anyone else? Is
> --> there a better name than ARP Replay?
> 
> ARP Replay might be clearer in indicating the inherent problems
> you pointed out (the implication of "replay" is the potential
> for "stale" information).
> 
> However, ARP caching (in a sense similar to web caching) has a
> "spin" (if you will) that includes mechanisms (such as Radia
> suggested) for handling these problems.

That's a well-known term on the host side; caching prevents the ARP from
being emitted in the first place.

> As far as the "confusion" over ARP proxy, I am happy to use a
> different word if it is confusing.  However, ARP proxy - in the
> sense that I've interpreted it in the past is "proxying" the ARP 
> service.  That means essentially what Radia said - i.e. - close
> in meaning to a name service proxy (but also similar to caching).

The term "proxy ARP' is a well-known term on routers that does what I
described; it is described in Cisco literature as such.

> What you are talking about is more like ARP spoofing, or ARP for
> higher layer (i.e. - layer 3) forwarding.

Spoofing is an attack version of proxy ARP. There are legitimate
versions as well.

> I don't believe I've
> ever heard that called ARP proxy, but it might be.  If that is
> the case, then by all means, use a different term. 
>  
> 
> --> -----Original Message-----
> --> From: rbridge-bounces at postel.org 
> --> [mailto:rbridge-bounces at postel.org] On Behalf Of Joe Touch
> --> Sent: Friday, December 16, 2005 10:58 AM
> --> To: Developing a hybrid router/bridge.
> --> Subject: Re: [rbridge] it's time to summarize things
> --> 
> --> _______________________________________________
> --> rbridge mailing list
> --> rbridge at postel.org
> --> http://www.postel.org/mailman/listinfo/rbridge
> --> 
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