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  1. Cloudron Forum
  2. VPN
  3. Multiple VPNs use the same IP-Network

Multiple VPNs use the same IP-Network

Scheduled Pinned Locked Moved Solved VPN
openvpn
6 Posts 3 Posters 1.2k Views 3 Watching
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    • chymianC Offline
      chymianC Offline
      chymian
      wrote on last edited by girish
      #1

      hello,
      it's stated that one can install multiple VPNs:
      "This app can be installed multiple times to create independent OpenVPN instances"

      which leads to having the same IP-network 10.8.x.x on all VPNs.
      which means, on can not connect to different VPNs at the same time.

        inet 10.8.0.6 peer 10.8.0.5/32 brd 10.8.0.6 scope global noprefixroute tun0
        inet 10.8.0.6 peer 10.8.0.5/32 brd 10.8.0.6 scope global noprefixroute tun1
      

      and during installation, an already used port is suggested.
      it would be nice if one can configure the IP-Networks by oneself, or at least don't use already used Networks.
      are there any possibilities to change it, if not, can you pls. fix this?

      TIA
      guenter

      fbartelsF 1 Reply Last reply
      1
      • chymianC chymian

        hello,
        it's stated that one can install multiple VPNs:
        "This app can be installed multiple times to create independent OpenVPN instances"

        which leads to having the same IP-network 10.8.x.x on all VPNs.
        which means, on can not connect to different VPNs at the same time.

          inet 10.8.0.6 peer 10.8.0.5/32 brd 10.8.0.6 scope global noprefixroute tun0
          inet 10.8.0.6 peer 10.8.0.5/32 brd 10.8.0.6 scope global noprefixroute tun1
        

        and during installation, an already used port is suggested.
        it would be nice if one can configure the IP-Networks by oneself, or at least don't use already used Networks.
        are there any possibilities to change it, if not, can you pls. fix this?

        TIA
        guenter

        fbartelsF Offline
        fbartelsF Offline
        fbartels
        App Dev
        wrote on last edited by
        #2

        Hi @chymian ,

        I am curious: What is the use case for connecting from one client to multiple openvpn apps running on the same cloudron?

        chymianC 1 Reply Last reply
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        • fbartelsF fbartels

          Hi @chymian ,

          I am curious: What is the use case for connecting from one client to multiple openvpn apps running on the same cloudron?

          chymianC Offline
          chymianC Offline
          chymian
          wrote on last edited by
          #3

          hey @fbartels,
          usecase is i.e.:
          I have several (cloud-/hosted-) servers which I need connection to.
          and I do have customers, where I need to have remote-access to their infrastructure *), but they must not have access to mine.
          not using a multi-purpose VPN yet, to hide (me and as service for my customers) behind my cloudron if abroad, since it's only a bridged and not a routed VPN.

          *) it would also be nice to have a disable switch to disconnect their NAS/servers, which automaticaly connect.

          on the other hand: what is a multiple-VPN ability on a server for, when I can not use them at the same time?
          JMTC

          regards
          guenter

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          • fbartelsF Offline
            fbartelsF Offline
            fbartels
            App Dev
            wrote on last edited by
            #4

            OK, so you have a vpn where you connect your servers to, and another vpn where your clients connect to.

            I had a quick look at the code of the app and it seems quite possible to have the IP net configurable, e.g. In https://git.cloudron.io/cloudron/openvpn-app/blob/master/openvpn-conf.sh#L20

            I an not entirely sure where DHCP comes from in the app. Could not find it with my short look.

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            • girishG Offline
              girishG Offline
              girish
              Staff
              wrote on last edited by
              #5

              This is an interesting use case one which we did not consider - where the same machine connects to multiple VPNs. As suggested, we can look into making the network IP of each instance more dynamic so that this works out of the box.

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              0
              • girishG Offline
                girishG Offline
                girish
                Staff
                wrote on last edited by
                #6

                I have opened https://git.cloudron.io/cloudron/openvpn-app/issues/20

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