Re: ebtables to perform MAC NAT ?

[DEMAINE Benoit-Pierre <benoit@demaine.info>]

Oscar N wrote:
> Hi!
> 
> I looked into "MAC NAT" 1-2 years ago and actually got it to work, but it
> included some nasty changes to how linux process arp. I therefor solved
> the problem I had another way. The feature is still on the todolist on
> ebtables: http://ebtables.sourceforge.net/documentation.html#todo
> 
> Anyway, this is some notes I had from back then if it's useful for someone:
> 
> There are at least 4 scenarios that need to work.
> DNAT and SNAT are referring to NAT done in ebtables.

*at least* ... as example, you forgpt the case where 1.1.1.2 wants to 
talk with 1.1.1.3 (case where broadcast is sent everywhere for 
discovery, unless ... )

But, you rougly understood how complex my problem is, from ARP point of 
view. I will have a look at your website.

***

after installing parprouted on Debian, from man parprouted:

> DESCRIPTION
>        parprouted is a daemon for transparent IP (Layer 3) proxy ARP bridging.
>        Unlike standard bridging, proxy ARP bridging allows to bridge Ethernet
>        networks behind wireless nodes. Normal L2 bridging does not work
>        between wireless nodes because wireless does not know about MAC
>        addresses used in the wired Ethernet networks. Also this daemon is use
>        ful for making transparent firewalls.

says long about my problem :)

-- 
  >o_/ DEMAINE Benoit-Pierre (aka DoubleHP) http://benoit.demaine.info/
If computing were an exact science, IT engineers would not have work \_o<

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