From: "William L. Thomson Jr." <support@obsidian-studios.com>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] ADVANCED ROUTING USING IPROUTE2 -> Multiple Firewalls
Date: Thu, 13 Jun 2002 17:43:27 +0000 [thread overview]
Message-ID: <marc-lartc-102399075631488@msgid-missing> (raw)
In-Reply-To: <marc-lartc-102397943817504@msgid-missing>
You will need to recompile your kernel with multpath support. Also
before you compile apply Julian's patches to the kernel.
http://www.linuxvirtualserver.org/~julian/#routes
Once that is done check out the Nano-HOWTO
http://www.linuxvirtualserver.org/~julian/nano.txt
That should get you on your way. The linux router will also have to
perform NAT, more than likely DNAT, for things to work properly.
On Thu, 2002-06-13 at 07:43, Roni Reicher wrote:
> Hi guys. I really need some help.
>
>
>
> This is my scenario:
>
>
>
>
>
>
>
> CLIENTS -> SWITCH -> W2K Server -> Linux -> Internet (with 2 ADSL LINES)
>
>
>
>
>
> My RedHat Linux 7.2 is just a firewall. Im running all the services
> (www, mail, etc.) on my W2K.
>
>
>
> I tried to set up a load balance, but im getting the following problem.
>
>
>
> When I connect from the internet through my IP1 (ADSL 1) on any port
> that I redirect to W2K, I can connect perfectly to my W2K, but when I
> connect using my IP2 (ADSL2) I cant get to W2K.
>
>
>
> And vice versa.
>
>
>
> With the telnet server, which is running on the linux, I can connect
> using both IP's.
>
>
>
> I guess the problem is when the W2K uses the other gw.
>
>
>
> My W2K default gw is the linux.
>
>
>
> This is my setup:
>
>
>
>
>
> W2K IP -> 10.0.0.1
>
> W2K IP2 -> 192.168.1.2
>
>
>
> Linux eth0 -> xxx.xxx.xxx.170 (ADSL1)
>
> Linux eth0 gw -> xxx.xxx.xxx.129
>
>
>
> Linux eth1 -> 192.168.1.1
>
>
>
> Linux eth2 -> yyy.yyy.yyy.205 (ADSL2)
>
> Linux eth2 gw -> yyy.yyy.yyy.193
>
>
>
>
>
> IPTABLES (just the basic).
>
>
>
> $IPTABLES -A INPUT -i lo -j ACCEPT
>
> $IPTABLES -A INPUT -p icmp -j ACCEPT
>
>
>
> $IPTABLES -A FORWARD -o eth0 -j ACCEPT
>
> $IPTABLES -A FORWARD -o eth2 -j ACCEPT
>
>
>
> ##################### SMTP SERVER #################
>
> $IPTABLES -t nat -A PREROUTING -p tcp -d xxx.xxx.xxx.170 --dport 25
> -j DNAT --to-destination 192.168.1.2
>
> $IPTABLES -t nat -A PREROUTING -p tcp -d yyy.yyy.yyy.205 --dport 25
> -j DNAT --to-destination 192.168.1.2
>
> ##################### HTTP SERVER ##################
>
> $IPTABLES -t nat -A PREROUTING -p tcp -d xxx.xxx.xxx.170 --dport 80
> -j DNAT --to-destination 192.168.1.2
>
> $IPTABLES -t nat -A PREROUTING -p tcp -d yyy.yyy.yyy.205 --dport 80
> -j DNAT --to-destination 192.168.1.2
>
>
>
> $IPTABLES -t nat -A POSTROUTING -s 192.168.1.0/24 -j MASQUERADE
>
> $IPTABLES -t nat -A POSTROUTING -s 10.0.0.0/24 -j MASQUERADE
>
> $IPTABLES -t nat -A POSTROUTING -o eth0 -j MASQUERADE
>
> $IPTABLES -t nat -A POSTROUTING -o eth2 -j MASQUERADE
>
>
>
>
>
>
>
> And this is my load balancing script:
>
>
>
>
>
> #### Variables ######
>
>
>
> IP=/sbin/ip
>
>
>
> IF1=eth0
>
> IP1=xxx.xxx.xxx.170
>
> P1=xxx.xxx.xxx.129
>
> P1_NET=xxx.xxx.xxx.128/26
>
>
>
> IF2=eth2
>
> IP2=yyy.yyy.yyy.205
>
> P2= yyy.yyy.yyy.193
>
> P2_NET= yyy.yyy.yyy.192/26
>
>
>
> echo 201 t1 >> /etc/iproute2/rt_tables
>
> echo 202 t2 >> /etc/iproute2/rt_tables
>
>
>
>
>
> $IP route add $P1_NET dev $IF1 src $IP1 table t1
>
> $IP route add default via $P1 table t1
>
> $IP route add $P2_NET dev $IF2 src $IP2 table t2
>
> $IP route add default via $P2 table t2
>
>
>
> $IP route add $P1_NET dev $IF1 src $IP1
>
> $IP route add $P2_NET dev $IF2 src $IP2
>
>
>
> $IP route add default via $P1
>
>
>
> $IP rule add from $IP1 table t1
>
> $IP rule add from $IP2 table t2
>
>
>
> $IP route add default scope global nexthop via $P1 dev $IF1 weight 1
> nexthop via $P2 dev $IF2 weight 1
>
>
>
>
>
>
>
> I really need help.
>
>
>
> I appreciate it,
>
>
>
> Ron Reicher
>
> ronysrei@uol.com.br
>
--
Sincerely,
William L. Thomson Jr.
Obsidian-Studios, Inc.
439 Amber Way
Petaluma, Ca. 94952
Phone 707.766.9509
Fax 707.766.8989
http://www.obsidian-studios.com
--
Sincerely,
William L. Thomson Jr.
Support Group
Obsidian-Studios Inc.
439 Amber Way
Petaluma, Ca. 94952
Phone 707.766.9509
Fax 707.766.8989
http://www.obsidian-studios.com
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next prev parent reply other threads:[~2002-06-13 17:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-13 14:43 [LARTC] ADVANCED ROUTING USING IPROUTE2 -> Multiple Firewalls Roni Reicher
2002-06-13 17:43 ` William L. Thomson Jr. [this message]
2002-06-17 13:18 ` Shroads, Jay
2002-06-26 23:14 ` Roni Reicher
2002-06-29 16:13 ` Roni Reicher
2002-06-29 18:08 ` William L. Thomson Jr.
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