[LARTC] Combining bandwith of two or more ADSLs ?

[LARTC] Combining bandwith of two or more ADSLs ?

[Lin Zhemin]

Hi.

Last time I have posted the situation in detail, but no response
yet is got. Let's think of this problem. Is it possible to combine
two ASDLs which goes to the same ISP via diferrent gateways?
I've search throughout google and got only one chart in 1999, like
this one:

ISP1                  ISP2
  |                    |
Gateway1            Gateway2
  `-------+     +------'
        eth0   eth1

And the response is okay, since packets with different to-IP can be
sent either through ISP1/2. But how to implement it? Under this
structure (but only one ISP behind the gateways) I've tried both teql
and 'ip route add default equalize nexthop via ... dev ... nexthop via
... dev ...' commands, but in vain.

Any comments, please?


Best regards,
Lin Zhemin.


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Re: [LARTC] Combining bandwith of two or more ADSLs ?

[RoMaN SoFt / LLFB!!]

On Tue, 10 Apr 2001 06:52:29 +0800, you wrote:

>Hi.
>
>Last time I have posted the situation in detail, but no response
>yet is got. Let's think of this problem. Is it possible to combine
>two ASDLs which goes to the same ISP via diferrent gateways?
>I've search throughout google and got only one chart in 1999, like
>this one:
>
>ISP1                  ISP2
>  |                    |
>Gateway1            Gateway2
>  `-------+     +------'
>        eth0   eth1
>
>And the response is okay, since packets with different to-IP can be
>sent either through ISP1/2. But how to implement it? Under this
>structure (but only one ISP behind the gateways) I've tried both teql
>and 'ip route add default equalize nexthop via ... dev ... nexthop via
>... dev ...' commands, but in vain.
>
>Any comments, please?

 This is my setup on a SuSE linux box (add to /etc/rc.d/route or
similar):

       /sbin/route del default 2> /dev/null
       /usr/sbin/ip route add default \
               nexthop dev eth0 via 192.168.0.1 \
               nexthop dev eth0 via 192.168.0.2 
       echo -e "Setting load balanced route (RoMaN) $rc_done"
       /usr/local/sbin/iptables -t mangle -A PREROUTING -j TOS
--set-tos 0x00
       /usr/local/sbin/iptables -t mangle -A OUTPUT -j TOS --set-tos
0x00
       echo -e "Hacking TOS to fix balance issue (RoMaN) $rc_done"

========

 192.168.0.1 y .2 are the adsl gateways. Iptables is used to trick the
TOS field and therefore sessions don't get messed.

 BTW, I've experienced some problems: from aprox 20 connections to my
stmp server I receive 1 connection failure. I don't know the reason.

 Try my config. Any feedback would be appreciated.

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
    ** RoMaN SoFt / LLFB **  
       roman@madrid.com
   http://pagina.de/romansoft
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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