From: "GoMi ." <gomiuk@hotmail.com>
To: lartc@vger.kernel.org
Subject: [LARTC] Splitting internet access with two providers
Date: Sun, 06 Apr 2003 21:56:03 +0000 [thread overview]
Message-ID: <marc-lartc-104966626817282@msgid-missing> (raw)
Hi there, since i failed to shape traffic due to p2p programs, i am thinking
about splitting my internet connection. Here is the scenario once again for
those who haven't red any of my emails :)
______
<hub1> <-------> |Switch| ______
| | | | eth0
<hub2> <-------> | | |Linux | <----------> Router ADSL1
. | | eth3 | |192.168.3.5 192.168.3.6
. | | <-----> | Box |
. | |192.169.1.1| | eth2
. | | | | <----------> Router ADSL2
<hub24> <------> |______| |______|192.168.4.2 192.168.4.1
I wanto to have one ADSL only for web/mail/ssh/etc.. and the other one only
for massive downloads.
The problem comes with connection tracking, it looks like its not working,
probably i am doing something wrong. Where is connection_tracking being
done, in the POSTROUTING or in the PREROUTING chain? i do my SNAT depending
on the --destination-port option, and i am using a stateful firewall, anyone
having the same troble, anyone can light me up? :)
PD: Sorry for my poor english :)
##################################################
## SNAT
##
iptables -t nat -A POSTROUTING -o eth2 -s 192.168.1.0/16 -p tcp --dport
0:1024 -j SNAT --to 192.168.3.5
iptables -t nat -A POSTROUTING -o eth2 -s 192.168.1.0/16 -p udp --dport
0:1024 -j SNAT --to 192.168.3.5
iptables -t nat -A POSTROUTING -o eth0 -s 192.168.1.0/16 -p tcp --dport
1024: -j SNAT --to 192.168.4.2
iptables -t nat -A POSTROUTING -o eth0 -s 192.168.1.0/16 -p udp --dport
1024: -j SNAT --to 192.168.4.2
iptables -t nat -A POSTROUTING -o eth2 -s 192.168.1.0/16 -j SNAT --to
192.168.3.5
####################################################
## Stateful Firewall
##
iptables -t filter -N keep_state
iptables -t filter -A keep_state -m state --state
RELATED,ESTABLISHED -j ACCEPT
iptables -t filter -A keep_state -j RETURN
iptables -t nat -N keep_state
iptables -t nat -A keep_state -m state --state RELATED,ESTABLISHED
-j ACCEPT
iptables -t nat -A keep_state -j RETURN
iptables -t nat -A PREROUTING -j keep_state
iptables -t nat -A POSTROUTING -j keep_state
iptables -t nat -A OUTPUT -j keep_state
iptables -t filter -A INPUT -j keep_state
iptables -t filter -A OUTPUT -j keep_state
iptables -t filter -A FORWARD -j keep_state
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next reply other threads:[~2003-04-06 21:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-06 21:56 GoMi . [this message]
2003-04-07 3:27 ` [LARTC] Splitting internet access with two providers N N Ashok
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