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    VLAN Questions

    Scheduled Pinned Locked Moved General pfSense Questions
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    • DerelictD
      Derelict LAYER 8 Netgate
      last edited by

      Seems like you can if you must:

      
      bridge0: flags=8843 <up,broadcast,running,simplex,multicast>metric 0 mtu 1500
      	ether 02:29:b8:be:74:00
      	nd6 options=1 <performnud>id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
      	maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200
      	root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0
      	member: re2_vlan100 flags=143 <learning,discover,autoedge,autoptp>ifmaxaddr 0 port 9 priority 128 path cost 200000
      	member: re0_vlan100 flags=143 <learning,discover,autoedge,autoptp>ifmaxaddr 0 port 8 priority 128 path cost 200000</learning,discover,autoedge,autoptp></learning,discover,autoedge,autoptp></performnud></up,broadcast,running,simplex,multicast> 
      

      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)

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      • johnpozJ
        johnpoz LAYER 8 Global Moderator
        last edited by

        Why would you bridge 2 vlans???  For starters why would 2 vlans have the same layer 3 IP ranges.. So if they don't there is ZERO point in making them the same layer 2.

        If you want devices to all be on the same layer 2, then that would be 1 vlan.

        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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        • jahonixJ
          jahonix
          last edited by

          Once again since it seems hard to read above posts:
          ASSUMING we don't have a core switch and using two native interfaces to feed two separate (edge-) switches with trunks it is the only possibility to share one VLAN among the two switches.
          You can't have VLAN_xy on trunk_A and trunk_B.
          This is a hypothetical setup which I DO NOT want to build.

          Side note: since my workbench is currently covered with digital mixing desks and outboard gear to check CobraNet, Dante and AVB (all digital audio networking protocols) I neither have the time nor the place to evaluate it myself.

          Now back to you, Jamerson!  ;D

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          • johnpozJ
            johnpoz LAYER 8 Global Moderator
            last edited by

            What does a core switch have to do with anything.. If both switches can reach pfsense then just put a switch there.. Go to the store and get a $40 smart switch..  If you have no budget, connect your 2 switches to that.  This is 1 vlan!

            There is NO scenario that would make sense to bridge 2 different vlans.  The act of bridging them would make it 1 vlan..  Why would you use something like pfsense to connect them.  You just need to plug one switch into the other switch.  Make the vlan id the same, there you go 1 vlan.

            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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            • J
              Jamerson
              last edited by

              Thank you guys and John for the help.
              I managed to get this fixed.
              I've configured one up link for all the switches and all the VLANS running on one interface and everything runs fine.

              I've enabled DHCP on each VLANS however didn't specify the dns on the dhcp . I've noticed that the users are having some difficulties to contact the file server .
              The users logs in local on their MAC machines.
              There is no internal DNS at all. The DNS is the gateway, DNS forward is configured fine.
              What am I doing wrong ?

              Before we migrate to offense we could build VPN to our Cisco firewall in holland to access the Internet as we may know the chiness are blocking a lot of sites .
              Is this gonna work with the openvpn tunnel we build ? I've forced the tunnel over the VPN but when I am connect over the openvpn and I went to whatismyip it's not showing our office IP but the local IP

              Thank you guys for the support
              Modify message

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              • DerelictD
                Derelict LAYER 8 Netgate
                last edited by

                @Jamerson:

                Before we migrate to opnsense

                opnsense? Really?

                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
                • J
                  Jamerson
                  last edited by

                  @Derelict:

                  @Jamerson:

                  Before we migrate to opnsense

                  opnsense? Really?

                  I meant offense man

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                  • J
                    Jamerson
                    last edited by

                    Sorry don't know what open sense is , my safari auto corrections.
                    Our productions number now is :
                    2.3.1-RELEASE-p5 (amd64)
                    built on Thu Jun 16 12:53:15 CDT 2016
                    FreeBSD 10.3-RELEASE-p3

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                    • johnpozJ
                      johnpoz LAYER 8 Global Moderator
                      last edited by

                      "I've enabled DHCP on each VLANS however didn't specify the dns on the dhcp"

                      How exactly would thy find anything then??  They just going to broadcast for names?  Might work for something like smb on the local layer 2.  But how are they getting to anything on the internet?  Are you handing them a proxy via auto discovery (wpad)?

                      if you handed them external dns, how would they find your local servers it seems your running?

                      You kind of need dns..  So you have local servers but no local dns??  Pfsense can be your local dns.. Once you enable dhcp on pfsense it would default to handing out its IP on that interface dhcp is running as dns to all dhcp clients.  If you need to resolve some fqdn locally just put in a host override.

                      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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                      • J
                        Jamerson
                        last edited by

                        @johnpoz:

                        "I've enabled DHCP on each VLANS however didn't specify the dns on the dhcp"

                        How exactly would thy find anything then??  They just going to broadcast for names?  Might work for something like smb on the local layer 2.  But how are they getting to anything on the internet?  Are you handing them a proxy via auto discovery (wpad)?

                        if you handed them external dns, how would they find your local servers it seems your running?

                        You kind of need dns..  So you have local servers but no local dns??  Pfsense can be your local dns.. Once you enable dhcp on pfsense it would default to handing out its IP on that interface dhcp is running as dns to all dhcp clients.  If you need to resolve some fqdn locally just put in a host override.

                        Thank you John,
                        Yes I've enable the dhcp and left it as default so of sense is providing them gateway and dns as it self on each VLANS. I believe its fine now .
                        So specify dns or leave it to pfsense to decide is gonna be the same.
                        About the mobile users , how can we force the openvpn to send the whole traffic over the WAN ?
                        When we are in China want our users to user internet using our VPN to the office in Holland. Is this even possible with openvpn or we have to create a L2tp tunnel ?

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                        • DerelictD
                          Derelict LAYER 8 Netgate
                          last edited by

                          GFW will probably block whatever you try to do. Probably want to take that up with the Chinese government.

                          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
                          • J
                            Jamerson
                            last edited by

                            @Derelict:

                            GFW will probably block whatever you try to do. Probably want to take that up with the Chinese government.

                            Last month my colleagues were in China, and everything works fine with the Cisco ASA firewall,
                            Cisco force the whole traffic over the VPN.
                            I don't know if this even possible with the openvpn .
                            I've seen the options on openvpn to send all traffic over the tunnel but don't know if it does it really.
                            So when I am connected with the VPN to the office, i get the office public ip and not the local.

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                            • DerelictD
                              Derelict LAYER 8 Netgate
                              last edited by

                              Yes, it does it.

                              Redirect Gateway
                              Force all client generated traffic through the tunnel.

                              Then re-export your client config.

                              Cisco ASAs are IPsec, not OpenVPN. Not sure why you're making that comparison. If IPsec was working for you on the ASA, why not use IPsec on pfSense?

                              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
                              • J
                                Jamerson
                                last edited by

                                @Derelict:

                                Yes, it does it.

                                Redirect Gateway
                                Force all client generated traffic through the tunnel.

                                Then re-export your client config.

                                Cisco ASAs are IPsec, not OpenVPN. Not sure why you're making that comparison. If IPsec was working for you on the ASA, why not use IPsec on pfSense?

                                Thank you, had reconfigured the OPENVPN to send all traffic over the tunnel and everything is working now.
                                Much appreciate it .

                                The management believes the openvpn is using ssl which makes it secure to use than the IPsec.
                                Right now I need to restrict the access between one VLAN and the rest of the VLANS.
                                Is creating a group of interfaces and apply the firewall rules between those two group would be the easy way of managing the stuff ?

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                                • johnpozJ
                                  johnpoz LAYER 8 Global Moderator
                                  last edited by

                                  while ipsec has its own issues, not sure I would consider it less secure than openvpn.  I am a bit surprised that ipsec works through the 防火长城 (The Great Firewall of China) let me know if the Chinese comes through ;)

                                  It is much easier to spot and stop ipsec traffic then openvpn that can run on any port.  If your doing a deep packet inspection you would know its not normal ssl traffic..  But like I said its much easier to block ipsec so it funny that is not blocked..

                                  Blocking traffic between vlans on pfsense is quite simple.  I would assume all your vlans are rfc1918 so just make an alias that contains those networks and use a not rule so only if traffic is NOT rfc1918 is it allowed.  Of course putting the stuff you want to allow above that rule.

                                  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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                                  • J
                                    Jamerson
                                    last edited by

                                    @johnpoz:

                                    while ipsec has its own issues, not sure I would consider it less secure than openvpn.  I am a bit surprised that ipsec works through the 防火长城 (The Great Firewall of China) let me know if the Chinese comes through ;)

                                    It is much easier to spot and stop ipsec traffic then openvpn that can run on any port.  If your doing a deep packet inspection you would know its not normal ssl traffic..  But like I said its much easier to block ipsec so it funny that is not blocked..

                                    Blocking traffic between vlans on pfsense is quite simple.  I would assume all your vlans are rfc1918 so just make an alias that contains those networks and use a not rule so only if traffic is NOT rfc1918 is it allowed.  Of course putting the stuff you want to allow above that rule.

                                    The IPsec has always worked from China to Europe. Last month too
                                    I don't know about IPsec to USA or there are some other policies than the one to Europe.
                                    The VLANS are rfc1918 24 bit-block .

                                    I will create the rules and report back.
                                    A big thank you sir for your continu support

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                                    • johnpozJ
                                      johnpoz LAYER 8 Global Moderator
                                      last edited by

                                      if you have questions post up your rules and we can go over them.

                                      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

                                      1 Reply Last reply Reply Quote 0
                                      • J
                                        Jamerson
                                        last edited by

                                        @johnpoz:

                                        if you have questions post up your rules and we can go over them.

                                        Thank you so much John,
                                        Our first Pfsense Firewall Hardware is up and running.

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