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Re: [Astlinux-users] Connecting topology
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From: <v-c...@po...> - 2007-01-02 08:22:40
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Phil McKerracher <ph...@mc...> wrote: > Happy New Year everybody, and thanks for all your replies to > my earlier query on this subject on the old mailing list. > > I've held off replying while I did a bit more research about > using astlinux as a router, to avoid making a complete fool > of myself in public. But I still don't understand it all, so > here goes anyway. :-) > > I've got no problem with throttling my external connection > to 90% of the available bandwidth to avoid queueing > problems. Obviously it would be nice to have a system that > copes with congestion without configuration, but I can live > with it. > > I've discovered elsewhere that the net4801 won't cope with > 100 Mbit/s ethernet routing (between PCs on my SoHo LAN) but > should cope with my 4 Mbit/s internet connection OK. This is > as I suspected, although it does make me wonder why my (much > cheaper!) Netgear router copes with it all right - > presumably it contains special hardware. This in turn makes > me wonder whether the net4801 was a good choice of hardware > for this sort of thing. Anyway, I think I can avoid all the > speed problems by simply connecting my Netgear router > downstream from the astlinux box, with my PCs connected to > the router and my phones to the astlinux box. It's twice as > much cable but what the heck. > > I'm a bit puzzled that PBX-only mode is now the default, > since that implies no traffic shaping, which I would have > thought would guarantee problems whenever a big download or > upload was in progress. What do people do in this situation? > Use a separate internet connection? Or a clever router? > > Anyway, I now want to enable the other ethernet ports on my > box, and it's not obvious how to do this from reading > rc.conf. My net4801 has seven ports (which now looks like a > mistake). Assuming I was happy with slower speeds I still > don't see how I can configure the unit to connect several > phones or PCs to it. Is there a hidden assumption here that > I'm missing, that an external router is always used? In > PBX-only mode the phones connect to the EXTERNAL interface > (the only one active by default), right? So the asterisk box > is just another device on the internal LAN, rather than > being physically connected between the phones and the > external internet as I had assumed. If so, then I think I > need to buy yet another router. :-( > > I hope this is all clear. Maybe a couple of diagrams would > help: > > 1. This is how I originally expected to connect things: > __________ > | |----IP Phone > INTERNET---| astlinux |----IP Phone ... > | box |----Computer > |__________|----Computer ... > > 2. I now think PBX-only mode is meant to be connected like > this: > ________ > | Router |----IP Phone > | |----IP Phone ... > INTERNET---| | __________ > | |---| astlinux | > | | | box | > |________| |__________| > > 3. And this is how I now think the PCs should be connected: > ________ > | Router |----IP Phone > | |----IP Phone > INTERNET---| | __________ ________ > | |---| astlinux |----| Fast > |----Computer > | | | box | | Router > |----Computer ... > |________| |__________| |________| > > Does that make sense? > > -- > Phil McKerracher > www.mckerracher.net > > > ------------------------------------------------------------ > ------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the > chance to share your > opinions on IT & business topics through brief surveys - and > earn cash > http://www.techsay.com/default.php?page=join.php&p=sourcefor > ge&CID=DEVDEV > _______________________________________________ > Astlinux-users mailing list > Ast...@li... > https://lists.sourceforge.net/lists/listinfo/astlinux-users > > Donations to support AstLinux are graciously accepted via > PayPal to pa...@kr.... |
