Re[2]: multiple links and nat

Linux Advanced Routing and Traffic Control

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Witaj Edmundo,

W Twoim li?cie datowanym 5 stycznia 2006 (17:21:52) mo¿na przeczytaæ:

Please consult: http://www.ssi.bg/~ja/#routes and my example scpript
mpath2.sh published there.

Without those patches - it just doesn't work :)


> The problem (as usual) is the change of route the routing box is doing
> for connections already stablished.

> Maybe you can try using separate routing tablewith  a single internet
> link for ssh (policy routing).

> On 1/5/06, seph <seph@xxxxxxxxxxxxxxxxx> wrote:
>> Hi, this might be a dumb question, but I'm not finding much
>> information online.
>>
>> I'm trying to setup a 2.6 linux box to run nat across multiple
>> upstream links as a simple way to aggregate bandwidth. I found the
>> instructions in lartc section 4.2
>> (http://lartc.org/howto/lartc.rpdb.multiple-links.html) fairly clear
>> and straightforward. I implemented those, and a couple of trivial
>> iptables commands and tried it.
>>
>> Persistent masqueraded connections (like ssh) weren't very happy. The
>> frequently hung, and I saw the "MASQUERADE: Route sent us somewhere
>> else." error. googling for that, I see lots of suggestions to use
>> connmark, but no examples of how connmark and the multiple link stuff
>> interact. Does anyone have a pointer?
>>
>> The rules I'm using are roughly:
>>
>> /sbin/ip route add P1_NET dev IF1 src IP1 table 201
>> /sbin/ip route add default via P1 table 201
>> /sbin/ip route add P1_NET dev IF1 src IP1
>> /sbin/ip route add 127.0.0.0/8 dev lo table 201
>> /sbin/ip rule add from IP1 table 201
>> /sbin/ip route add P2_NET dev IF2 src IP2 table 202
>> /sbin/ip route add default via P2 table 202
>> /sbin/ip route add P2_NET dev IF2 src IP2
>> /sbin/ip route add 127.0.0.0/8 dev lo table 202
>> /sbin/ip rule add from IP2 table 202
>>
>>
>> /sbin/ip route del default
>> /sbin/ip route add default scope global nexthop via P1 dev IF1 weight 1 nexthop via P2 dev IF2 weight 4
>> /sbin/ip route flush cache
>>
>>
>> /sbin/iptables -t nat -A PREROUTING -s LOCALNET -d P1_NET -j ACCEPT
>> /sbin/iptables -t nat -A PREROUTING -s LOCALNET -d P2_NET -j ACCEPT
>> /sbin/iptables -t nat -A POSTROUTING -o IF1 -s LOCALNET -j MASQUERADE
>> /sbin/iptables -t nat -A POSTROUTING -o IF2 -s LOCALNET -j MASQUERADE
>>
>>
>> thanks
>> seph
>> _______________________________________________
>> LARTC mailing list
>> LARTC@xxxxxxxxxxxxxxx
>> http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
>>
> _______________________________________________
> LARTC mailing list
> LARTC@xxxxxxxxxxxxxxx
> http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc


-- 
Pozdrowienia,
 Robert Kurjata

_______________________________________________
LARTC mailing list
LARTC@xxxxxxxxxxxxxxx
http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc

[Index of Archives]     [LARTC Home Page]     [Netfilter]     [Netfilter Development]     [Network Development]     [Bugtraq]     [GCC Help]     [Yosemite News]     [Linux Kernel]     [Fedora Users]
  Powered by Linux