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    Site To Site VPN consideration

    Scheduled Pinned Locked Moved OpenVPN
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    • T
      tbaror
      last edited by

      Hello All,

      Site A                                                Site B
      I need to establish site to site VPN with both site Lan Ip's that are routable on the internet    <<lan 21x.x.x.x="">>Pfsense>>Internet>>Pfsense<<195.x.x.xLAN>>
      My question is could it cause issues when routable  ip from site A need to communicate with ip from site B or its transparent for them ?
      Please advice
      Thanks</lan>

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      • P
        phil.davis
        last edited by

        It should work. Once the OpenVPN tunnel establishes, the routing table at 21x.x.x.x will have an entry for 195.x.x.x/n that will send those packets across the tunnel. Similarly the routing table at 195.x.x.x will have an entry for 21x.x.x.x sending those packets across the tunnel.
        Once the user packets between 21x.x.x.x<->195.x.x.x are in the tunnel, they are encapsulated and encrypted inside OpenVPN packets. Routers on the real internet only see the OpenVPN tunnel endpoints as source/destination.
        It will be transparent to the users at either end. and internet routers can't see the details of the user packets encrypted inside the OpenVPN tunnel comms.

        As the Greek philosopher Isosceles used to say, "There are 3 sides to every triangle."
        If I helped you, then help someone else - buy someone a gift from the INF catalog http://secure.inf.org/gifts/usd/

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        • T
          tbaror
          last edited by

          @phil.davis:

          It should work. Once the OpenVPN tunnel establishes, the routing table at 21x.x.x.x will have an entry for 195.x.x.x/n that will send those packets across the tunnel. Similarly the routing table at 195.x.x.x will have an entry for 21x.x.x.x sending those packets across the tunnel.
          Once the user packets between 21x.x.x.x<->195.x.x.x are in the tunnel, they are encapsulated and encrypted inside OpenVPN packets. Routers on the real internet only see the OpenVPN tunnel endpoints as source/destination.
          It will be transparent to the users at either end. and internet routers can't see the details of the user packets encrypted inside the OpenVPN tunnel comms.

          Thanks
          Cheers  :)

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