RES: ADVANCED ROUTING USING IPROUTE2 -> Multiple Firewalls

Roni Reicher
Sat, 15 Jun 2002 16:52:59 -0000

Hi William. Thanks a lot for your help.

Im having some trouble recompiling my kernel after a installed the
patch.

Im running RH 7.3 with kernel 2.4.18-3.

The patch I installed is routes-2.4.16-6.diff. I got no errors
installing it.

I added the multipath support, and recompiled it.

The make dep and the make bzImage went fine.

I got error during the make modules.

These are the errors:

Output.c: in function ''cipe_xmit''
Output.c:175 too few arguments to function ''ip_route_output''
Make[3]: *** [output.o] error 1
Make[3]: leaving directory
''/usr/src/linux-2.4.18-3/drivers/addon/cipe''
Make[2]: *** [_modsubdir_cipe] error 2
Make[2]: leaving directory
''/usr/src/linux-2.4.18-3/drivers/addon''
Make[1]: *** [_modsubdir_addon] error 2
Make[1]: leaving directory ''/usr/src/linux-2.4.18-3/drivers
Make: *** [_mod_drivers] error 2

After I got that error, a formatted and reinstalled redhat 7.3. Then I
used the newer patch (routes-2.4.19-8.diff), and I got error installing,
and of course I couldn''t recompile it.

I formatted again to see if I were doing something wrong recompiling.
But this time I didn''t patch and recompile it. I got no errors...

Any ideas? Am I using the wrong patch?

Thanks a lot,

Ron


-----Mensagem original-----
De: William L. Thomson Jr. [mailto:support@obsidian-studios.com]
Enviada em: quinta-feira, 13 de junho de 2002 14:43
Para: lartc@mailman.ds9a.nl
Assunto: Re: [LARTC] ADVANCED ROUTING USING IPROUTE2 -> Multiple
Firewalls

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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