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    Proxmox + PFSense conection port forward

    Scheduled Pinned Locked Moved NAT
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    • V
      viragomann
      last edited by

      So the next hop is 192.168.100.1, your ISP modem. 100.127.255.6 may be your internet upstream gateway.

      So as I mentioned above, Proxmox send its packets to the IPS moedem, since it as no route to 192.168.1.100. So add a route to Proxmox and it should work.

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      • johnpozJ
        johnpoz LAYER 8 Global Moderator
        last edited by

        How is going to work when pfsense nats out of the box. Did he turn off natting?

        An intelligent man is sometimes forced to be drunk to spend time with his fools
        If you get confused: Listen to the Music Play
        Please don't Chat/PM me for help, unless mod related
        SG-4860 24.11 | Lab VMs 2.8, 24.11

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        • V
          viragomann
          last edited by

          As I understood his first post, he only want to access the machines behind pfSense from Proxmox, but not the other way round.

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          • johnpozJ
            johnpoz LAYER 8 Global Moderator
            last edited by

            Huh?? If proxmox had an IP in this 192.168.1 network - he would have no need of creating any routes in the first place. when talking to 192.168.1.x it would use its IP in that interface.

            If the HOST does not have an ip in this network, then he would need to route yes. But since pfsense is the router to get to 192.168.1 - and it nats this network out of the box.. He would have to setup port forwarding, and hit the IP of pfsense wan - so again no routing is involved.

            An intelligent man is sometimes forced to be drunk to spend time with his fools
            If you get confused: Listen to the Music Play
            Please don't Chat/PM me for help, unless mod related
            SG-4860 24.11 | Lab VMs 2.8, 24.11

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            • L
              Lixaotec
              last edited by Lixaotec

              its an optical cable modem. Huawei. Configs are default from isp (they burnt a customized firmware, that wont work with any other changes, really a s**t)

              However, I did the nat, and it works when coming from other device on that modem.

              192.168.100.1 - Isp modem DHCP
              192.168.100.10 - Proxmox (vmbr0)
              192.168.100.6 - PfSense (inside Proxmox - vmbr0) WAN
              192.168.100.12 - external device

              vmbr1 - inside PFSense LAN
              192.168.1.1 - PFsense dhcp
              192.168.1.100 - my vm with 4444 port open

              from .12 i manage to connect to the nat port forward at PFSense, lets say 192.168.100.6:4444

              from .10 i cant connect to 192.168.100.6:4444 (i can see packages arriving in PFSense with CLOSED:SYN_SENT)

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              • johnpozJ
                johnpoz LAYER 8 Global Moderator
                last edited by johnpoz

                Well if devices on your network behind pfsense have firewall.. Pfsense can send the traffic to this IP all day long - doesn't mean that box will answer..

                Here is the thing - sniff on pfsense lan interface in pfsense. Do you see it send the traffic on that you port forward? If so then pfsense did what its suppose to do.. If you get not answer that is nothing pfsense can do about that.

                An intelligent man is sometimes forced to be drunk to spend time with his fools
                If you get confused: Listen to the Music Play
                Please don't Chat/PM me for help, unless mod related
                SG-4860 24.11 | Lab VMs 2.8, 24.11

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                • L
                  Lixaotec
                  last edited by

                  PFSense is a brand new installation , clean of rules, only the nat rule for that port is configured

                  Why it accpets from one device, and not from another (proxmox)?

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                  • johnpozJ
                    johnpoz LAYER 8 Global Moderator
                    last edited by

                    You could have an issue in promox where your using the same interface to try and talk to itself just with another IP..

                    Sniff on pfsense - does it see the traffic to its wan IP, does it port forward it?

                    An intelligent man is sometimes forced to be drunk to spend time with his fools
                    If you get confused: Listen to the Music Play
                    Please don't Chat/PM me for help, unless mod related
                    SG-4860 24.11 | Lab VMs 2.8, 24.11

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                    • L
                      Lixaotec
                      last edited by

                      06b38055-11e2-4ba8-ae48-0161871f4410-image.png

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                      • V
                        viragomann @johnpoz
                        last edited by

                        @johnpoz said in Proxmox + PFSense conection port forward:

                        If proxmox had an IP in this 192.168.1 network

                        No, it hasn't as I understood. It has only an IP in 192.168.100.x

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                        • johnpozJ
                          johnpoz LAYER 8 Global Moderator
                          last edited by johnpoz

                          So pfsense sent the SYN to you dest box - if it doesn't answer what is pfsense suppose to do? Does that dest VM have pfsense as its gateway? Does it have a firewall? Is it even listening on that port? Did it even see the traffic pfsense sent it?

                          An intelligent man is sometimes forced to be drunk to spend time with his fools
                          If you get confused: Listen to the Music Play
                          Please don't Chat/PM me for help, unless mod related
                          SG-4860 24.11 | Lab VMs 2.8, 24.11

                          L 1 Reply Last reply Reply Quote 0
                          • L
                            Lixaotec @johnpoz
                            last edited by

                            Dear @johnpoz

                            When Promox communicate with 192.168.100.6 (pfsense) the packages seems to be arriving at PFSense, verified by states print above.

                            The dest VM 192.168.1.100 have pfsense as its gateway 192.168.1.1, and it is listening, I also confirm that because I can reach it from 192.168.100.12

                            vm dest does not have firewall enable, its a raw ubuntu server

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                            • L
                              Lixaotec
                              last edited by

                              I reach it from the same nat rule .. it works from 192.168.100.12, but not from 192.168.100.10 (proxmox).

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                              • johnpozJ
                                johnpoz LAYER 8 Global Moderator
                                last edited by

                                Pfsense doesn't care what the source IP is.. I suggest again - you sniff.

                                On pfsense lan sniff when you send data from the .10 address. Do you see pfsense send the packet - do you get a response?

                                If your saying it works from .12, but not .10 - pfsense has no care what the source is - it would treat the data exactly the same.. Other than something in proxmox.

                                So sniff and see exactly what is going on..

                                An intelligent man is sometimes forced to be drunk to spend time with his fools
                                If you get confused: Listen to the Music Play
                                Please don't Chat/PM me for help, unless mod related
                                SG-4860 24.11 | Lab VMs 2.8, 24.11

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