Re: 2 adsl connections load balancing with natd/ipfw

From: Emre Bastuz (info_at_emre.de)
Date: 05/26/04

  • Next message: Eric Anderson: "Re: 2 adsl connections load balancing with natd/ipfw" 
    Date: Wed, 26 May 2004 13:51:38 +0200
To: freebsd-isp@freebsd.org

    Merhaba Evren,

    Evren Yurtesen <yurtesen@ispro.net.tr>:
    > Well. I have found out that it is possible with pf but I get dynamic ip
    > address from adsl provider, I think pf needs to know the gateway ip for
    > this to work. (I guess) I still look...
    as I also have two DSL lines I searched in for the same kind of information in
    the past that you are trying to find.

    After hours of Googling I came to the following conclusion:

    - being "multihomed" with a FreeBSD based system is only possible if
      you use a dynamic routing protocoll. The required software suite
      for this is Zebra.

      Drawback: requires assistance from your ISP an *a lot* of routing knowledge
      on your side. Does not work with dynamic IP addresses usually assigned
      via PPP as seen with most non-business customers

    - being "multihomed" with a Linux based system does work to some degree
      if you use the IPChains/IPTables/IPRoute2 features that come with the
      OS (tagging packets to route them out on the same interface they came in
      by making routing decisions based on those tags etc.). AFAIK there is also
      an experimental pseudo NIC that is used to bundle the lines.

      Drawback (for me at least): I am not familiar with Linux :)

    - being "multhomed" independent of the type of OS works with hardware
      that is specifically designed to bring DSL or Cable lines together.

      One example for this kind of hardware would be Radware´s "Linkproof" product

      Drawback: this stuff is pretty expensive (compared to an open source
      software solution)

    So far I did not find any tutorial or howto or whatever to achieve my goal with
    FreeBSD. I assume right now there is no satisfying way to use your two lines
    with BSD except with dedicated hardware.

    Selam,

    Emre 

    --
http://www.emre.de                        UIN: 561260
PGP Key ID: 0xAFAC77FD
I don't see why some people even HAVE cars. -- Calvin
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  • Next message: Eric Anderson: "Re: 2 adsl connections load balancing with natd/ipfw"