FreeBSD router two DSL connections

[Nathan Vidican]

Ted Mittelstaedt wrote:
> 
>>-----Original Message-----
>>From: owner-freebsd-questions at freebsd.org
>>[mailto:owner-freebsd-questions at freebsd.org]On Behalf Of Yance Kowara
>>Sent: Monday, December 12, 2005 4:33 AM
>>To: freebsd-questions at freebsd.org
>>Subject: Re: FreeBSD router two DSL connections
>>
>>
>>
>>
>>--- Eric F Crist <ecrist at secure-computing.net> wrote:
>>
>>
>>>On Dec 12, 2005, at 2:05 AM, Yance Kowara wrote:
>>>
>>>
>>>>Ted,
>>>>
>>>>Thanks for the advice.
>>>>
>>>>A friend of mine has just acquired an Internet
>>>
>>>Cafe.
>>>
>>>>The previous owner connected the lan to 2
>>>
>>>different
>>>
>>>>ADSL (two different ISPs) one is a back up he
>>>
>>>said.
>>>
>>>>So, two ADSL routers with half the Lan connected
>>>
>>>to
>>>
>>>>one router and another half to the other router.
>>>>
>>>>I am just thingking of a way to optimise the
>>>>connection and came accross Steven's article. I
>>>>thought I could do something similar with *BSD +
>>>
>>>pf.
>>>
>>>>There is such thing as Dual Wan ADSL router:
>>>>http://www.infosmart.com.tw/p-ndr3024.htm
>>>>
>>>>However, they are quite pricey compare to setting
>>>
>>>up a
>>>
>>>>*BSD box (using old readily available hardware).
>>>>
>>>>
>>>>So, if this load balancing idea does not work, any
>>>>other thing I can do to optimise two DSLs?
>>>>
>>>>I also came accross this (linux way):
>>>>
>>>
>>http://www.tldp.org/HOWTO/Adv-Routing-HOWTO/lartc.rpdb.multiple-
>>
>>>>links.html
>>>>
>>>>Is this worth trying?
>>>>
>>>>Kind regards,
>>>
>>>Yance,
>>>
>>>The reason, without a pretty heavily involved
>>>configuration, this  
>>>won't work is packet routing.  Unless you're using
>>>BGP, Border  
>>>Gateway Protocol, you're not going to reliably route
>>>return packets  
>>>to any interface other than the interface it was
>>>transmitted from.   
>>>I'm guessing that the dual-wan device you speak of
>>>handles some  
>>>things differently.  Something like a large file
>>>download is going to  
>>>fail to utilize the full bandwidth, however, because
>>>of the nature of  
>>>the traffic.  If you really need to boost network
>>>bandwidth, you're  
>>>going to be forced into either working directly with
>>>an ISP to link  
>>>multiple DSL channels, or, more likely, obtain
>>>business-class service  
>>>over a T1/T3 setup.
>>>
>>>HTH
>>>-----
>>>Eric F Crist
>>>Secure Computing Networks
>>>http://www.secure-computing.net
>>>
>>>
>>>
>>>_______________________________________________
>>>freebsd-questions at freebsd.org mailing list
>>>
>>
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>>
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>>>
>>
>>Hmmmmmm, what about putting zebra into the picture ...
>>a solution or chaos?
>>
> 
> 
> What feature in Zebra exactly do you think will help in
> this scenario?
> 
> Ted
> _______________________________________________
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> 
> 

You could, if the purpose is to combine bandwidth accross multiple DSL links, 
use multi-link PPP, afaik - the only way to do so is through mpd 
(/usr/ports/net/mpd) ... not catch the whole thread, so feel free to correct me 
if wrong, mpd should work for you.

-- 
Nathan Vidican
nvidican at wmptl.com
Windsor Match Plate & Tool Ltd.
http://www.wmptl.com/