Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    PFsense With Single NIC

    Scheduled Pinned Locked Moved General pfSense Questions
    21 Posts 6 Posters 3.1k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • pttP Offline
      ptt Rebel Alliance
      last edited by

      ???

      https://doc.pfsense.org/index.php/Installing_pfSense#Assign_Interfaces_on_the_Console

      Only one interface (WAN) is required to setup pfSense

      NOTE: If only one NIC is assigned (WAN), This is called Appliance Mode. In this mode, pfSense will move the GUI anti-lockout rule to the WAN interface so the firewall may be accessed from there. The usual routing functions would not be active since there is no "internal" interface. This type of configuration is useful for VPN appliances, DNS servers, etc.

      1 Reply Last reply Reply Quote 0
      • ? Offline
        A Former User
        last edited by

        It's very easy
        With you switch, you'll have 3 ports.

        Port 1 will be untagged in vlan 100
        Port 2 will be untagged in vlan 200
        Port 3 will be tagged with vlans 100 and 200

        On your PfSense you have two VLAN interfaces, vlan 100 is your "WAN" interface and vlan 200 is your "LAN" interface.

        You plug your WAN into Port 1, you plug your LAN into Port 2 and your plug your PfSense into Port 3.

        If this is too complex/confusing then I would politely suggest some time spent studying the fundamentals of IP and Ethernet would be of great assistance to you that someone showing you a video that won't cover your exact use case requirements.  The PfSense book is quite good for this and is only a Gold Subscription (or even cheaper for HTML access to it)

        1 Reply Last reply Reply Quote 0
        • M Offline
          MR-NT
          last edited by

          Thanks
          I appreciate your recommendations 😀

          1 Reply Last reply Reply Quote 0
          • M Offline
            MR-NT
            last edited by

            Dear sir
            By the way port 3 (untagged) will be management port 😀
            @muppet:

            It's very easy
            With you switch, you'll have 3 ports.

            Port 1 will be untagged in vlan 100
            Port 2 will be untagged in vlan 200
            Port 3 will be tagged with vlans 100 and 200

            On your PfSense you have two VLAN interfaces, vlan 100 is your "WAN" interface and vlan 200 is your "LAN" interface.

            You plug your WAN into Port 1, you plug your LAN into Port 2 and your plug your PfSense into Port 3.

            If this is too complex/confusing then I would politely suggest some time spent studying the fundamentals of IP and Ethernet would be of great assistance to you that someone showing you a video that won't cover your exact use case requirements.  The PfSense book is quite good for this and is only a Gold Subscription (or even cheaper for HTML access to it)

            1 Reply Last reply Reply Quote 0
            • M Offline
              MR-NT
              last edited by

              this Solution Can Handle Traffic For 5000 User , or prefers to use 2 NICs

              @MR-NT:

              Dear sir
              By the way port 3 (untagged) will be management port 😀
              @muppet:

              It's very easy
              With you switch, you'll have 3 ports.

              Port 1 will be untagged in vlan 100
              Port 2 will be untagged in vlan 200
              Port 3 will be tagged with vlans 100 and 200

              On your PfSense you have two VLAN interfaces, vlan 100 is your "WAN" interface and vlan 200 is your "LAN" interface.

              You plug your WAN into Port 1, you plug your LAN into Port 2 and your plug your PfSense into Port 3.

              If this is too complex/confusing then I would politely suggest some time spent studying the fundamentals of IP and Ethernet would be of great assistance to you that someone showing you a video that won't cover your exact use case requirements.  The PfSense book is quite good for this and is only a Gold Subscription (or even cheaper for HTML access to it)

              1 Reply Last reply Reply Quote 0
              • SammyWooS Offline
                SammyWoo
                last edited by

                @MR-NT:

                this Solution Can Handle Traffic For 5000 User , or prefers to use 2 NICs

                This start to sound like an homework assignment.

                One physical port has a fixed limited bandwidth, the more stuff, VLAN you throw at it, it has to share that fixed bandwidth between all its VLANs. There is no magic.

                1 Reply Last reply Reply Quote 0
                • stephenw10S Offline
                  stephenw10 Netgate Administrator
                  last edited by

                  You don't need more than one interface and hence don't need VLANs to run pfSense purely as a proxy server with Squid.

                  Just configure the WAN only and install Squid. There will be an allow all rule on the WAN but you may want to restrict that.

                  Set your clients to use the pfSense as the proxy. Done.

                  Steve

                  1 Reply Last reply Reply Quote 0
                  • M Offline
                    MR-NT
                    last edited by

                    i appreciate your recommendation , i try it, its Up & running , but i am little confused

                    My production scenario , that i have 9 Network subnet

                    172.40.1.0/24 with default gateway 172.40.1.1
                    .
                    .
                    172.40.9.0/24 with  default gateway 172.40.9.1

                    every subnet has its own DG as i mention above , all of them routed to my fortigate Box then Internet

                    i want to set My Pfsense Box just as Proxy server in front of my Fortigate

                    what should i do in my pfsense box configuration

                    should i set My default gateway in Pfsense to Fortigate IP or what ? & if you have any other recommendation i should do ,

                    i appreciate you recommendation

                    Many thanks

                    @stephenw10:

                    You don't need more than one interface and hence don't need VLANs to run pfSense purely as a proxy server with Squid.

                    Just configure the WAN only and install Squid. There will be an allow all rule on the WAN but you may want to restrict that.

                    Set your clients to use the pfSense as the proxy. Done.

                    Steve

                    1 Reply Last reply Reply Quote 0
                    • stephenw10S Offline
                      stephenw10 Netgate Administrator
                      last edited by

                      The pfSense box will need upstream connectivity, so setting it's default gateway/route. That appears to be your Cisco gear from how I understand your network. A diagram would help here.

                      It will also need a route back to your other subnets to reply to clients so you will probably need to add static routes to via the Fortigate device.

                      Since pfSense it not in the clients route by default they will either need to be configured to use the proxy or something else will have to redirect traffic to it. pfSense usually does that itself if you run in 'transparent mode' but that is not possible with this setup.

                      Steve

                      1 Reply Last reply Reply Quote 0
                      • M Offline
                        MR-NT
                        last edited by

                        @stephenw10:

                        The pfSense box will need upstream connectivity, so setting it's default gateway/route. That appears to be your Cisco gear from how I understand your network. A diagram would help here.

                        It will also need a route back to your other subnets to reply to clients so you will probably need to add static routes to via the Fortigate device.

                        Since pfSense it not in the clients route by default they will either need to be configured to use the proxy or something else will have to redirect traffic to it. pfSense usually does that itself if you run in 'transparent mode' but that is not possible with this setup.

                        Steve

                        Many Thanks Sir

                        1 Reply Last reply Reply Quote 0
                        • M Offline
                          MR-NT
                          last edited by

                          First of all i want to say thank you to all especially  stephenw10 SammyWoo muppet ptt

                          everything working good in my test lab (PFsense with Single NIC)  but when i am implement to my production environment , i face

                          some problem

                          PFsense & Clients Have Same Default Gateway & DNS ( But Clients have PFsense IP as Proxy Server , same configuration that was

                          working in Test Lab)

                          1- what traffic exactly should i allow to PFsense IP in my fortigate cause PFsense give me error in package Manger

                          2- i will Integrate My PFsense with Active Directory ( is there anything should i worry about with integration )

                          i appreciate your help

                          New.png
                          New.png_thumb

                          1 Reply Last reply Reply Quote 0
                          • DerelictD Offline
                            Derelict LAYER 8 Netgate
                            last edited by

                            It just needs internet access like any other client for updates and packages. So it will need DNS servers and a default gateway pointed at the fortigate. I am pretty sure all of its outbound connections are on TCP/443 for that so that plus DNS should be all that is necessary if you are filtering outbound.

                            You can use LDAP (or RADIUS) to query AD (AD/NPS). Lots of people do it.

                            Chattanooga, Tennessee, USA
                            A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                            DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                            Do Not Chat For Help! NO_WAN_EGRESS(TM)

                            1 Reply Last reply Reply Quote 0
                            • M Offline
                              MR-NT
                              last edited by

                              @Derelict:

                              It just needs internet access like any other client for updates and packages. So it will need DNS servers and a default gateway pointed at the fortigate. I am pretty sure all of its outbound connections are on TCP/443 for that so that plus DNS should be all that is necessary if you are filtering outbound.

                              You can use LDAP (or RADIUS) to query AD (AD/NPS). Lots of people do it.

                              Many Thanks  :)

                              1 Reply Last reply Reply Quote 0
                              • M Offline
                                MR-NT
                                last edited by

                                @Derelict:

                                It just needs internet access like any other client for updates and packages. So it will need DNS servers and a default gateway pointed at the fortigate. I am pretty sure all of its outbound connections are on TCP/443 for that so that plus DNS should be all that is necessary if you are filtering outbound.

                                You can use LDAP (or RADIUS) to query AD (AD/NPS). Lots of people do it.

                                Dear Sir

                                Can you recommend me a good tutorial for use LDAP to query AD ?

                                i appreciate your help

                                1 Reply Last reply Reply Quote 0
                                • stephenw10S Offline
                                  stephenw10 Netgate Administrator
                                  last edited by

                                  If you have Gold membership or Book access then:
                                  https://portal.pfsense.org/docs/book/usermanager/external-authentication-examples.html#active-directory-ldap-example

                                  Otherwise there's troubleshooting tips here: https://doc.pfsense.org/index.php/LDAP_Troubleshooting

                                  Steve

                                  1 Reply Last reply Reply Quote 0
                                  • M Offline
                                    MR-NT
                                    last edited by

                                    @stephenw10:

                                    If you have Gold membershiop or Book access then:
                                    https://portal.pfsense.org/docs/book/usermanager/external-authentication-examples.html#active-directory-ldap-example

                                    Otherwise there's troubleshooting tips here: https://doc.pfsense.org/index.php/LDAP_Troubleshooting

                                    Steve

                                    Yes i Have , i found it

                                    Many Thanks Steve

                                    1 Reply Last reply Reply Quote 0
                                    • First post
                                      Last post
                                    Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.