[olug] Local internet access.

Sam Tetherow tetherow at sandhillswireless.net
Thu Sep 16 21:18:57 UTC 2004


2 DSL lines/routes with one IP and no cooperation from the ISP is a 
single DSL line at twice the cost ;).  If you want 1 IP you have to have 
cooperation from the ISP for it to work.  But if you can't get 'bonded' 
DSL you can get multiple DSL connections and load-balance them.   Not 
sure what the DNS comment was about it makes no sense I could see the 
ISP getting upset about rouge BGP traffic but they should be able to 
shut that off at the CPE or at their router edge.

You have a linux firewall with with 3 ethernet ports, one goes to DSL1, 
one goes to DSL2 and one goes to your local network.  You now masquerade 
the traffic out each of the DSL interfaces (or use static mapping if you 
have multiple IPs behind each DSL connection).  Doing a true load 
balanced connection using this scheme I have never done but routing 
www/smtp/ssh traffic down one and everything else down another is 
trivial.  The big difference between bonded and multiple lines is that 
bonded turns two DSL lines into one DSL line that is twice as fast.  In 
other words if you have 2 1024 DSL lines you can get a single connection 
to go 2048 whereas without the bonding you can only go 1024 on a single 
connection.

Charles Bird wrote:

>I was told by a "old pro" at a local ISP that some people have had 2 DSL lines/routers and one IP, without cooperation from the other end, I was told that it was starting to p-off alot of people because it was increasing loads on DNS world wide. Have I seen it done?  Hope, just heard of it...will I look into doing this? Nope, too lazy to do anything that'll get me in trouble.
>  I dont know what its called, it is kinda like shotgun though. Bonded sounds good. Its not a Paired connection like paracom has available.
>  
>
>
>----- Original Message -----
>From: Sam Tetherow <tetherow at sandhillswireless.net>
>Date: Thu, 16 Sep 2004 00:36:22 -0500
>To: Omaha Linux User Group <olug at olug.org>
>Subject: Re: [olug] Local internet access.
>
>  
>
>>Not sure what you mean by shotgunning but there shouldn't be a problem 
>>doing a dual routed setup.  Now if you are looking for bonded you will 
>>obviously be needing cooperation from the other end.
>>
>>Charles Bird wrote:
>>
>>    
>>
>>>Oh man, I have to put in my estatic feeling of the week...I found some apts. right across the street from the qwest CO in Counciltucky I mean like 200-400ft, I dont know where in the line it is but it cant be too far.....whoo!! I asked the lord of the land if I could install 2 phone lines for twin DSL bussiness connections and I got the OK, I'll be moving in 4-5 months. Then I can make my twin rack with a bunk bed on top. =D
>>>  I'm still wondering about shotgun DSL, I know its been done with and without permision from CO on the east coast and I'm gonna have to talk to those fools to see whats going on with that in our area.
>>>Anyone know the deal with shotgun dsl? 
>>>
>>>
>>>
>>>----- Original Message -----
>>>From: Phil Brutsche <phil at brutsche.us>
>>>Date: Mon, 13 Sep 2004 02:14:04 -0500
>>>To: Omaha Linux User Group <olug at olug.org>
>>>Subject: Re: [olug] Local internet access.
>>>
>>> 
>>>
>>>      
>>>
>>>>Eric Lusk wrote:
>>>>   
>>>>
>>>>        
>>>>
>>>>>The key to qwest is NOT letting their "technicians" install your
>>>>>internet access
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>Abso-friggin-lutely.  The same can also be said for almost any ISP.
>>>>
>>>>At work one of my co-workers has QWeset DSL.  Works great, with one
>>>>small detail... QWest configured her Cisco 678 DSL modem to be a NATing
>>>>firewall (she gets 10.0.0.0/24 on her PC).
>>>>
>>>>Not a major problem for most home users, but if you're trying to get a
>>>>IPsec VPN setup working (or even something simple like ssh) it makes for
>>>>unnecessary complications.
>>>>
>>>>-- 
>>>>
>>>>Phil Brutsche
>>>>phil at brutsche.us
>>>>_______________________________________________
>>>>OLUG mailing list
>>>>OLUG at olug.org
>>>>http://lists.olug.org/mailman/listinfo/olug
>>>>   
>>>>
>>>>        
>>>>
>>> 
>>>
>>>      
>>>
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>>    
>>
>
>  
>




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