Tom,

    I had already set FW1, FW2 and DNAT in both, and everything worked and 
works fine.

    Could you detail the configuration of SERVER ?

    I had set MultiISP configuration in SERVER but it didn't work.
    Is this a problem that its interface has a private IP ?


Regards.
Leandro.    


  ----- Original Message ----- 
  From: Tom Eastep 
  To: Shorewall Users 
  Sent: Sunday, November 20, 2011 6:09 PM
  Subject: Re: [Shorewall-users] Two Firewalls Two ISP One DMZ Server




  On Nov 18, 2011, at 6:31 AM, Leandro wrote:
    I have 2 firewalls with the 2 ISPs each one.
    I have a server in DMZ.

    (IP addresses below are examples)

    FW1
        eth0    dmz    10.10.10.1/24
        eth1    inet    1.1.1.1/24 gw 1.1.1.100 (ISP1)
        eth2    inet    2.2.2.1/24 gw 2.2.2.100 (ISP2)


    FW2
        eth0    dmz    10.10.10.2/24
        eth1    inet    1.1.1.2/24 gw 1.1.1.100 (ISP1)
        eth2    inet    2.2.2.2/24 gw 2.2.2.100 (ISP2)


    ROUTER ISP1 1.1.1.100
    ROUTER ISP2 2.2.2.100


    SERVER
        eth0 dmz 10.10.10.10


     
    I want that incoming connections from ISP1 FW1 port XX to be forwarded to 
SERVER port XX, and the packet to be routed back to FW1 to reach internet
    I want that incoming connections from ISP2 FW1 port XX to be forwarded to 
SERVER port XX, and the packet to be routed back to FW1 to reach internet

    I want that incoming connections from ISP1 FW2 port XX to be forwarded to 
SERVER port XX, and the packet to be routed back to FW2 to reach internet
    I want that incoming connections from ISP2 FW2 port XX to be forwarded to 
SERVER port XX, and the packet to be routed back to FW2 to reach internet


    What I should set in shorewall FW1, shorewall FW2, and shorewall SERVER ?



  Set 'track' on all providers. FW1 and FW2 just need normal DNAT rules. The 
SERVER needs a multi-ISP configuration like is described at 
http://ipv6.shorewall.net/MultiISP.html#Shared.


  -Tom


  Tom Eastep        \ When I die, I want to go like my Grandfather who
  Shoreline,         \ died peacefully in his sleep. Not screaming like
  Washington, USA     \ all of the passengers in his car
  http://shorewall.net \________________________________________________









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