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Groups > comp.os.linux.networking > #4055

Re: 4 WAN, load balancing and port forwarding.

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Le 17/05/2017 à 19:30, Mariusz Koniarz a écrit :
>
> I have 4 ISP with 4 public static IP -> 4 modem/routers.
> (2x LTE, 2x DSL)
>
> Can't setup bridge mode, so on all 4 routers there is DMZ.
> For test, I had setup LAN like in this picture:
> http://obrazki.elektroda.pl/1408751200_1495012294.png
>
> I Installed pfSense for load balancing&failover - works great.
> but...
> I can't configure port forwarding in a way, that my servers can be accessible from internet.

This is a Linux group, but pfSense is based on *BSD.

> What I need:
> #1 working loadbalancing.
> #2 my servers accessible from all 4 external IP.

I cannot help you on pfSense, but you could do the port forwarding with 
a Linux box using iptables and advanced routing (and leave pfSense for 
load balancing and failover).

Basically, you need to send a reply packet via the same router which 
forwarded the original packet. So the box must be able to identify which 
router sent a packet. You can use the source MAC address, or have each 
router forwarding packets to a different destination IP address (all 
owned by the box).

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4 WAN, load balancing and port forwarding. Mariusz Koniarz <mkoniarz@gmail.com> - 2017-05-17 10:30 -0700
  Re: 4 WAN, load balancing and port forwarding. Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-05-17 20:12 +0200

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