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

No DHCP on pfSense VLAN with Cisco Smart Switch

Scheduled Pinned Locked Moved L2/Switching/VLANs
147 Posts 7 Posters 91.1k 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.
  • C
    Cannondale @pete35
    last edited by May 24, 2023, 5:47 PM

    @pete35 said in No DHCP on pfSense VLAN with Cisco Smart Switch:

    Do you need another vlan ? Or is this just for investigation?

    Both. Ultimately need to confirm whether the switch is having an issue with tags. If not a config issue, I will replace it.

    @pete35 said in No DHCP on pfSense VLAN with Cisco Smart Switch:

    You can configure another vlan with the same trick, if you have more interfaces on the pfsense.

    Understood. I'm not a network expert but I recall that this is called segmentation. My quad port card in the pfSence server is full now. It appears that using additional NIC ports to segregate the LAN is a hardware approach as opposed to the vlan approach. My preference would be to use vlans unless a particular use case suggests that segmentation would work better.

    1 Reply Last reply Reply Quote 0
    • C
      Cannondale @pete35
      last edited by May 24, 2023, 5:48 PM

      @pete35 said in No DHCP on pfSense VLAN with Cisco Smart Switch:

      looks like it needs some more parameters on startup or needs some more priviledges (root?)
      check the "-c" parameter and maybe check all this here:
      https://adamtheautomator.com/wireshark-linux/

      Thanks for the link! I'll check it out.

      J 1 Reply Last reply May 24, 2023, 7:20 PM Reply Quote 0
      • J
        Jarhead @Cannondale
        last edited by May 24, 2023, 7:20 PM

        @Cannondale I just skimmed this thread so I may have missed it but have you tried putting 2 ports in the same vlan and see if they can communicate?

        C 1 Reply Last reply May 24, 2023, 7:24 PM Reply Quote 0
        • C
          Cannondale @Jarhead
          last edited by May 24, 2023, 7:24 PM

          @Jarhead said in No DHCP on pfSense VLAN with Cisco Smart Switch:

          have you tried putting 2 ports in the same vlan and see if they can communicate?

          Thanks for chiming in Jarhead. Yes. Two untagged ports can communicate on a vlan. One connected to pfSense and the other connected to a Linux workstation.

          J 1 Reply Last reply May 27, 2023, 9:43 PM Reply Quote 0
          • J
            johnpoz LAYER 8 Global Moderator @Cannondale
            last edited by johnpoz May 27, 2023, 10:39 PM May 27, 2023, 9:43 PM

            @Cannondale Ok my sg250-08HP just got here.. clickly clicky running a vlan10..

            So either your switch is borked or you are doing something odd that we are missing... I didn't do anything to the switch other than boot it, give it an IP 192.168.200.9.. Plugged it into my igb4 interface that has 192.168.200.1/24

            Setup a vlan with 172.16.10.253/24 enabled dhcp..

            settingss.jpg

            switchf65809#term datadump                            
            switchf65809#sho run
            config-file-header
            switchf65809
            v2.5.8.15 / RCBS3.1_930_871_084
            CLI v1.0
            file SSD indicator encrypted
            @
            ssd-control-start
            ssd config
            ssd file passphrase control unrestricted
            no ssd file integrity control
            ssd-control-end cb0a3fdb1f3a1af4e4430033719968c0
            !
            !
            unit-type-control-start
            unit-type unit 1 network gi uplink none
            unit-type-control-end
            !
            vlan database
            vlan 10
            exit
            voice vlan state auto-triggered
            voice vlan oui-table add 0001e3 Siemens_AG_phone
            voice vlan oui-table add 00036b Cisco_phone
            voice vlan oui-table add 00096e Avaya
            voice vlan oui-table add 000fe2 H3C_Aolynk
            voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
            voice vlan oui-table add 00d01e Pingtel_phone
            voice vlan oui-table add 00e075 Polycom/Veritel_phone
            voice vlan oui-table add 00e0bb 3Com_phone
            hostname switchf65809
            username user password encrypted $15$RNkCnVXJLcID4IKT$EDhJvPxPXJSsrsKvB8y0SMuwEaQn2SVckrVGzq6WfpOactj45CrUSHkc7nLpQAuAkdP72MS+2pTULQy7rIavcg== privilege 15
            ip ssh server
            sntp server 192.168.3.32 poll
            ip name-server  192.168.200.1
            !
            interface vlan 1
             ip address 192.168.200.9 255.255.255.0
             no ip address dhcp
            !
            interface GigabitEthernet1
             switchport mode trunk
             switchport trunk allowed vlan 1,10
            !
            interface GigabitEthernet8
             switchport access vlan 10
            !
            exit
            macro auto controlled
            ip default-gateway 192.168.200.1
            switchf65809#
            

            Now its currently running 2.5.8.15, plug into port 8 get an IP on the 172.16.10 network, plug into port 7 get an IP of vlan 1, 192.168.200..

            Going to update it to latest version - brb

            edit: ok back on 2.5.9.16, all working just fine..

            edit2: here is the dhcp from client I plugged into port 8 on the sg250, you can see it got an IP from my vlan 10 I setup on pfsense

            May 27 17:09:49 	dhcpd 	98873 	DHCPACK on 172.16.10.11 to d0:37:45:0e:8c:be via igb4.10
            May 27 17:09:49 	dhcpd 	98873 	DHCPREQUEST for 172.16.10.11 (172.16.10.253) from d0:37:45:0e:8c:be via igb4.10
            May 27 17:09:49 	dhcpd 	98873 	DHCPOFFER on 172.16.10.11 to d0:37:45:0e:8c:be via igb4.10
            May 27 17:09:48 	dhcpd 	98873 	DHCPDISCOVER from d0:37:45:0e:8c:be via igb4.10 
            

            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

            C 1 Reply Last reply May 31, 2023, 10:32 AM Reply Quote 0
            • C
              Cannondale @johnpoz
              last edited by May 31, 2023, 10:32 AM

              @johnpoz

              Sorry for the delay in responding. Just got back into town after traveling. Thanks for the additional information. Very helpful!
              I have an SG300 that arrived yesterday and still in a box. Will spark it up today to see what I find and report back.

              J 1 Reply Last reply May 31, 2023, 10:39 AM Reply Quote 0
              • J
                johnpoz LAYER 8 Global Moderator @Cannondale
                last edited by johnpoz May 31, 2023, 10:47 AM May 31, 2023, 10:39 AM

                @Cannondale one thing nice about the sg300 is shows pvid info ;)

                Both in the gui, and from cli

                That the gui lists P in the legend, but then doesn't show it, and the cli showing this confusing as hell

                Port : gi8
                Port Mode: 
                Gvrp Status: disabled
                Ingress Filtering: true
                Acceptable Frame Type: admitAll
                Ingress UnTagged VLAN ( NATIVE ): 1
                 
                Port is member in: 
                 
                Vlan               Name               Egress rule     Added by     
                ---- -------------------------------- ----------- ---------------- 
                 10                 10                 Untagged          S         
                

                When I look at a interface with vlan on my sg300

                Port : gi1
                Port Mode: Access 
                Gvrp Status: disabled
                Ingress Filtering: true
                Acceptable Frame Type: admitAll
                Ingress UnTagged VLAN ( NATIVE ): 99
                 
                Port is member in: 
                 
                Vlan               Name               Egress rule     Added by     
                ---- -------------------------------- ----------- ---------------- 
                 99                wan                 Untagged          S         
                
                 
                Forbidden VLANS: 
                Vlan               Name               
                ---- -------------------------------- 
                
                

                That being said - I had no issues setting a interface to access in a vlan on the sg250, and it working as it should with the vlan tagged to pfsense via "trunk" port.. Even though the cli output is bonkers ;)

                There is clearly room for improvement in the info they show in the gui and the cli on the 250.. Why is showing the ingress untagged vlan as 1, when clearly that could not be the case if the interface is access in vlan 10..

                Notice on the 300, it shows the native same as the vlan used for egress as untagged.

                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

                C M 2 Replies Last reply May 31, 2023, 3:32 PM Reply Quote 0
                • C
                  Cannondale @johnpoz
                  last edited by May 31, 2023, 3:32 PM

                  @johnpoz Got the SG300 up and running. Firmware and boot code were quite old (fw 1.2.9.44 and bc 1.1.0.6).
                  Upgraded both to the latest releases (fw 1.4.11.5 and bc 1.3.5.06), which was a feat in it self! Too bad Cisco hasn’t upgraded the firmware in the last three years!

                  P in the legend, but then doesn't show it, and the cli showing this confusing as hell

                  I definitely see what you mean!

                  Created the following test vlans on the switch:
                  Note: igb1 is the Main Lan in pfSense

                  VLAN10 (Test1)
                  Switch port 23, Trunk mode, Tagged, connected to pfSense VLAN10 (igb2)
                  Switch port 24, Access mode, Untagged, connected to Linux workstation
                  Wide open firewall rule for VLAN10

                  Test results: DHCP works as expected and provides Linux workstation IP

                  VLAN20 (Test2)
                  Switch port 51, Trunk mode, Tagged, connected to pfSense igb1 (Main Lan)
                  Switch port 46, Access mode, Untagged, connected to Linux workstation
                  Wide open firewall rule for VLAN20

                  Test results: No DHCPREQUEST in pfSense DHCP log, no IP provided to Linux workstation

                  I must be missing something stupid simple?

                  sw pvm vl20.png

                  pfs int ass.png

                  pfs int vl20.png

                  pfs dhcp vl20.png

                  pfs fw vl20.png

                  M 1 Reply Last reply May 31, 2023, 3:56 PM Reply Quote 0
                  • M
                    mvikman @Cannondale
                    last edited by May 31, 2023, 3:56 PM

                    @Cannondale said in No DHCP on pfSense VLAN with Cisco Smart Switch:

                    Upgraded both to the latest releases (fw 1.4.11.5 and bc 1.3.5.06), which was a feat in it self! Too bad Cisco hasn’t upgraded the firmware in the last three years!

                    Well, It has been in End-of-Sale since October 2018, End of Software Maintenance was October 2019 and End of Support is October 2023.
                    https://www.cisco.com/c/en/us/products/collateral/switches/small-business-300-series-managed-switches/eos-eol-notice-c51-740542.html


                    So the Main LAN still works from the igb1, but just not the VLAN using that same igb1?

                    pfSense Plus 24.11-RELEASE (amd64)
                    Dell Optiplex 7040 SFF
                    Core i5-6500, 8GB RAM, 2x 240GB SSD (ZFS Mirror)
                    HPE 561T (X540-AT2), 2-port 10Gb RJ45
                    HPE 562SFP+ (X710-DA2), 2-port 10Gb SFP+

                    C 1 Reply Last reply May 31, 2023, 4:01 PM Reply Quote 0
                    • C
                      Cannondale @mvikman
                      last edited by May 31, 2023, 4:01 PM

                      @mvikman

                      Well, It has been in End-of-Sale since October 2018, End of Software Maintenance was October 2019 and End of Support is October 2023.

                      Interestingly, the SG250 has roughly the same End Dates and had a firmware date of 4/2023.

                      So the Main LAN still works from the igb1, but just not the VLAN using that same igb1?

                      Yes that is correct.

                      M 2 Replies Last reply May 31, 2023, 4:05 PM Reply Quote 0
                      • M
                        mvikman @Cannondale
                        last edited by May 31, 2023, 4:05 PM

                        @Cannondale Hmm... Compared to mine, the pfSense config looks to be ok to me.

                        pfSense Plus 24.11-RELEASE (amd64)
                        Dell Optiplex 7040 SFF
                        Core i5-6500, 8GB RAM, 2x 240GB SSD (ZFS Mirror)
                        HPE 561T (X540-AT2), 2-port 10Gb RJ45
                        HPE 562SFP+ (X710-DA2), 2-port 10Gb SFP+

                        1 Reply Last reply Reply Quote 0
                        • M
                          mvikman @johnpoz
                          last edited by mvikman May 31, 2023, 4:15 PM May 31, 2023, 4:13 PM

                          @johnpoz Looks like that the CBS-series (and probably also the SG250) only uses/shows the pvid when the port is set to General Mode...
                          I set GE5 into General Mode and it now shows 1P
                          b2690716-561f-4dd3-b503-df38c458e004-image.png

                          pfSense Plus 24.11-RELEASE (amd64)
                          Dell Optiplex 7040 SFF
                          Core i5-6500, 8GB RAM, 2x 240GB SSD (ZFS Mirror)
                          HPE 561T (X540-AT2), 2-port 10Gb RJ45
                          HPE 562SFP+ (X710-DA2), 2-port 10Gb SFP+

                          C 1 Reply Last reply May 31, 2023, 4:21 PM Reply Quote 0
                          • C
                            Cannondale @mvikman
                            last edited by May 31, 2023, 4:21 PM

                            @mvikman

                            Looks like that the CBS-series (and probably also the SG250) only uses/shows the pvid when the port is set to General Mode...
                            I set GE5 into General Mode and it now shows 1P

                            I saw the same thing with theSG250.

                            1 Reply Last reply Reply Quote 0
                            • M
                              mvikman @Cannondale
                              last edited by mvikman May 31, 2023, 4:23 PM May 31, 2023, 4:22 PM

                              @Cannondale

                              If you put both VLAN10 and VLAN20 on the igb2, can you get both to work through the switches untagged ports?

                              pfSense Plus 24.11-RELEASE (amd64)
                              Dell Optiplex 7040 SFF
                              Core i5-6500, 8GB RAM, 2x 240GB SSD (ZFS Mirror)
                              HPE 561T (X540-AT2), 2-port 10Gb RJ45
                              HPE 562SFP+ (X710-DA2), 2-port 10Gb SFP+

                              C 1 Reply Last reply May 31, 2023, 4:43 PM Reply Quote 0
                              • C
                                Cannondale @mvikman
                                last edited by May 31, 2023, 4:43 PM

                                @mvikman

                                If you put both VLAN10 and VLAN20 on the igb2, can you get both to work through the switches untagged ports?

                                Yes. This works as expected.

                                pfs int ass2.png

                                sw p23 24 46.png

                                1 Reply Last reply Reply Quote 0
                                • M
                                  mvikman
                                  last edited by May 31, 2023, 5:18 PM

                                  Ok, so something gets messed up when there is both tagged and untagged traffic to the port.

                                  I have all my LAN networks in pfSense as VLANS, so everything is tagged. I believe this is also the recommended method.

                                  pfSense Plus 24.11-RELEASE (amd64)
                                  Dell Optiplex 7040 SFF
                                  Core i5-6500, 8GB RAM, 2x 240GB SSD (ZFS Mirror)
                                  HPE 561T (X540-AT2), 2-port 10Gb RJ45
                                  HPE 562SFP+ (X710-DA2), 2-port 10Gb SFP+

                                  C 1 Reply Last reply May 31, 2023, 5:49 PM Reply Quote 0
                                  • C
                                    Cannondale @mvikman
                                    last edited by May 31, 2023, 5:49 PM

                                    @mvikman Thanks for the additional information.

                                    I have all my LAN networks in pfSense as VLANS, so everything is tagged.

                                    To clarify, you have all of your vlans on switch port gi1, which is connected to your pfSense lan port?

                                    If yes, I should be able to disable my vlan10 (on igb2), which would leave only vlan20 on my igb1 (pfSense lan) and would match your config. Correct?
                                    Would be an easy test.

                                    M 1 Reply Last reply May 31, 2023, 7:00 PM Reply Quote 0
                                    • M
                                      mvikman @Cannondale
                                      last edited by May 31, 2023, 7:00 PM

                                      @Cannondale Yes GE1 port is a trunk to pfSense

                                      My pfSense interfaces
                                      b45d9b5e-9b96-49c6-8a55-77c012c46fec-image.png

                                      pfSense Plus 24.11-RELEASE (amd64)
                                      Dell Optiplex 7040 SFF
                                      Core i5-6500, 8GB RAM, 2x 240GB SSD (ZFS Mirror)
                                      HPE 561T (X540-AT2), 2-port 10Gb RJ45
                                      HPE 562SFP+ (X710-DA2), 2-port 10Gb SFP+

                                      C 1 Reply Last reply May 31, 2023, 7:25 PM Reply Quote 0
                                      • C
                                        Cannondale @mvikman
                                        last edited by May 31, 2023, 7:25 PM

                                        @mvikman Thanks for the confirmation.
                                        As a test, I disabled the pfSense VLAN10 interface on igb2.
                                        I also removed VLAN10 from port 23 on the switch.
                                        This left only VLAN20 on my igb1 (pfSense lan) interface.
                                        Unfortunately, the test failed. It didn't make a difference in getting an IP on VLAN20 from DHCP.

                                        P 1 Reply Last reply May 31, 2023, 7:39 PM Reply Quote 0
                                        • P
                                          pete35 @Cannondale
                                          last edited by pete35 May 31, 2023, 7:45 PM May 31, 2023, 7:39 PM

                                          @Cannondale
                                          Somehow your switch configs are a miracle. Can you post your the routing table / standard gateway of that switch? Is routing disabled/enabled?

                                          Pls show all the firewall rules, not in edit mode.... also the floating rules just to see how the rules are in the rows.

                                          <a href="https://carsonlam.ca">bintang88</a>
                                          <a href="https://carsonlam.ca">slot88</a>

                                          C 1 Reply Last reply May 31, 2023, 8:07 PM Reply Quote 0
                                          122 out of 147
                                          • First post
                                            122/147
                                            Last post
                                          Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.
                                            This community forum collects and processes your personal information.
                                            consent.not_received