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Date:      Sat, 13 Jan 2018 09:43:07 -0800 (PST)
From:      "Rodney W. Grimes" <freebsd-rwg@pdx.rh.CN85.dnsmgr.net>
To:        georg@bege.email
Cc:        freebsd-net@freebsd.org
Subject:   Re: Fwd: Re: Support for ATM bridging (RFC1483/2684) in FreeBSD?
Message-ID:  <201801131743.w0DHh7Jd046065@pdx.rh.CN85.dnsmgr.net>
In-Reply-To: <3032eab4-8c07-b701-83ca-d07ffd17ee11@bege.email>

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> 
> 
> 
> -------- Weitergeleitete Nachricht --------
> Betreff: Re: Support for ATM bridging (RFC1483/2684) in FreeBSD?
> Datum: Sat, 13 Jan 2018 18:26:30 +0100
> Von: Georg Bege <georg@bege.email>
> Antwort an: georg@bege.email
> An: Eugene Grosbein <eugen@grosbein.net>
> 
> Hello
> 
> Thanks for your response.
> Well I have come to the believe that no special hardware is required for
> this, basically they somehow seem to route this via PPPoE (or at least
> that's what I think).

It is called PPPPoA.

> Basically you establish an PPPoE connection and then you somehow must
> acquire an virtual ATM device (which carries VCR/VCI.. and encapsulates
> this) much like VDSL does with vlan tagging....
> 
> Im not sure if Im 100% correct, but for example I can establish the
> internet connection with just an normal ADSL2+ Annex J compatible Modem
> and PPPoE works too.

The ISP's equipment may be supporting both PPPoE and PPPoA.  They may
be running them in different VCI/VPI's also.

> What I dont get without this bridging stuff is the IPTV stream, it seems
> that on this bridged device an dhcp query is necessary in order to get
> access to the multicast net.

It may also be that you need to send a IGMP join to get them to send
the IPTV multicast stream, and somehow that is happinging with you
do the DHCP.

There are very few details here to know much about
any of what is actually going on.

> 
> regards,
> Georg
> 
> Am 13.01.2018 um 16:42 schrieb Eugene Grosbein:
> > 13.01.2018 19:55, Georg Bege wrote:
> > 
> >> Im looking for information if ATM bridging is (or was?) possible with
> >> FreeBSD.
> >> Basically its the same which is available in Linux for a long time now:
> >> https://www.systutorials.com/docs/linux/man/8-br2684ctl/
> >> https://home.regit.org/technical-articles/atm-bridging/
> >>
> >> I'd like to use FBSD as an gateway/router however, I've a strange kind
> >> of IPTV+Internet over ADSL (no VDSL available).
> >>
> >> I've found natmip(4) so far, but Im uncertain if this is truly the right
> >> thing...
> > 
> > It depends on hardware you have. Do you have some internal PCI ATM adapter or external device?
> > 
> > 
> 
> -- 
> Georg Bege
> Mail: georg@bege.email
> XMPP: therion@ninth-art.de
> IRC: megaTherion @ Freenode
> 
> 
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-- 
Rod Grimes                                                 rgrimes@freebsd.org



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