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NetFire
New Member
June 15, 2017
Question

Routing Traffic between Two Site to Site VPN Tunnels

  • June 15, 2017
  • 2 replies
  • 9354 views

Hello,

 

this is my first post. I thank the administrators for accepting my request.

 

I come straight to the point.

 

My goal: reach and install a printer (192.168.0.246/32) which is "two FGT ahead" (from 192.168.177.0/24)

 

My scenario:

[ul]
  • FGT60C (192.168.177.0/24) - Admin Access
  • FGT100A (10.1.0.0/24) - Admin Access
  • FGT60D (192.168.0.0/24) - NO Admin Access[/ul]

    ALL VPN WORKS.

    I have admin access only on FGT60C (192.168.177.0/24) and FGT100A (10.1.0.0/24).  No admin for FGT60D (192.168.0.0/24).

    It's an atypical set-up, but I found configured and working VPN from FGT100A to FGT60D and I can't touch it.

    For the moment, I can reach the printer (obviously) only from 10.1.0.0/24. 

     

    In other words, I want to route IP 192.168.0.246/32 (somehow) from FGT60C to FGT60D using FGT100A as "brigde" between two VPN, so I can reach the printer (192.168.0.246/32) from 192.168.177.0/24.

    I've tried policy routes, policy firewall, nothing. I'm convinced that is escaping me something.

     

    My actual conf:

    FGT60C - FW Policy FROM/TO 192.168.177.0/24 192.168.0.246/32 - Interfaces: VPN/Internal and viceversa

    FGT100A - FW Policy FROM/TO 192.168.177.0/24 192.168.0.246/32 - Interfaces: VPN/Internal and viceversa

     

    If I execute traceroute 192.168.0.246 from FGT 60C CLI, it stops after VPN, ie, it reaches the 86.2.50.60, and then stops. 

     

    That's all. I hope to have been clear, my English is a bit evanescent

     

    Thank you very much for your availability.

     

     

     

    • 2 replies

      EMES
      New Member
      June 15, 2017

      What if you NAT the traffic

       

      Use an IP Pool to hide the original source from 192.168.177.0 to something in the 10.1.0.0/24 network. This would happen on the Firewall with the 10.1.0.0 network. The policy would be

       

      Srcinterface : vpn from FGT60C 

      Dstinterface : vpn to FGT60D

      Source : 192.168.177.0/24

      Destination : 192.168.0.0/24

      service : any

      NAT : Enabled

      IP pool configuration : Use dynamic IP Pool

       

      Your IP Pool would be set to overload and the ip set to a 10.1.0.0/24 IP (Unused of course)

       

       

      NetFire
      NetFireAuthor
      New Member
      June 15, 2017

      You are great!!!

      It worked at first shot

       

      Thank you so much

       

       

      NetFire
      NetFireAuthor
      New Member
      June 15, 2017

      Probably something went wrong.

      For a distraction, I entered 10.1.0.0/24 rather than 10.1.0.[UnusedIP].

      It 'possible that this has caused an IP conflict between the locally connected machines?

       

      Thanks for your reply

      NetFire
      NetFireAuthor
      New Member
      June 16, 2017

      Many thanks, at least I know that this problem is due to this setting