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    Have I set this up right or am I being stupid?

    Scheduled Pinned Locked Moved General pfSense Questions
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    • F022YF Offline
      F022Y
      last edited by F022Y

      As not to reopen an old post but may be related to sendto: 65 with UK ISP and PFsense

      So after posting the above the random drops stopped so all was happy until about 3 weeks ago. While the wife was working the net would randomly 'hiccup' meaning webpages would need a refresh to get going and her citrix session would advise of loss of connection.

      As part of diagnostics we ran pings to the ESXI host, the PfSense VM and bbc.co.uk and all appear fine, ISP was contacted again and they can't see anything on their network so pushed back to me and my kit. Now before caving in and replacing the PfSense router I would like to check I have done this correctly.

      ESXI is 6.7u3, PfSense is 2.5.2 RELEASE with 4 vCPU cores, 8GB Ram, 50GB HDD (ufs).

      The ESXI host is a HP Z620 workstation i've repurposed for a Valheim Server, Unifi Controller and PFsense currently (it has a pair of E5-2680 v2 CPUs and 64GB Ram). The NICs are onboard Intel 82579LM and an onboard Intel 82574L but i do have a 4 port Intel I340-T4 if that would be better.

      So currently the VM has 3 vNICs:-
      1 for WAN
      1 for LAN
      1 for a Segregated network i play with rules etc.

      All 3 are set as VMXNET3 adaptors.

      Does this seem right?

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      • stephenw10S Offline
        stephenw10 Netgate Administrator
        last edited by

        Yes, that should be fine.

        I would try to determine what's actually failing when it hiccups.

        A DNS issue would be my first suspect. IPv6 can do odd things if it's partially configured.

        Gateway flapped and defaulted to something internal?

        Steve

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        • F022YF Offline
          F022Y @stephenw10
          last edited by F022Y

          @stephenw10 Thank you for the reply.

          When it hiccups it's like any established connections drop and have to re establish if that makes sense. I.e I'll be dropped from a game, netflix will buffer music streams will stop etc.

          My ISP doesn't yet do IPv6 so I think I have that off. As for DNS I thought I had set it to cloudflare DNS where is best to check this? I guess an nslookup? I don't have an internal DNS setup (other than the PFsense box) but that being said I do have pfblocker could it be there?

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          • F022YF Offline
            F022Y
            last edited by

            So this morning I added google dns (if i've done it right). Attached i've added my current dashboard.

            54824bc3-281c-4e72-a70a-c4a5fcfe020a-image.png

            Some pings i did this morning to the PFsense VM (254 address), The ESXI host (250 address), cloudflare dns and google dns.

            e7352ea5-5a65-4257-b331-5c92ff9960f1-image.png

            My Thinkbroadband quality monitor for yesterday, ignore the red bar as that was me taking the router offline to try literally anything.

            e05b149f-9e57-4458-b9d1-6a52d773b379-image.png

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            • stephenw10S Offline
              stephenw10 Netgate Administrator
              last edited by

              Ok, if existing streams are cut it's probably not DNS.

              I note in your screenshot you have only one gateway and it's showing as offline. Is that because you were doing something at that point that disconnected it?

              It also looks like you're monitoring the gateway IP itself (the default) which won't show you any issues upstream of that.
              Try this; edit the gateway in System > Routing > Gateways and set an external Monitor IP. I would use 8.8.8.8 there since you've proved it responds. Also set Disable Gateway Monitoring Action. Since you only have one gateway there is no need for it to trigger a reload but you still want to log the gateway status.

              Steve

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              • F022YF Offline
                F022Y @stephenw10
                last edited by F022Y

                @stephenw10 The gateway changes between 2, 244 and 243. 244 seems to never respond yet 243 does. My ISP has advised these are gateways to their network not the internet breakout.

                I never actually set the gateway it appears to be picked up from PPPoE.

                I've added as you suggest and will see what happens.

                19b37145-7a4b-4ffb-a5b4-4e3f29de8a43-image.png

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                • stephenw10S Offline
                  stephenw10 Netgate Administrator
                  last edited by

                  Yeah, the ISPs gateway does not have to respond to ping. My own connections, with BT, do not. Setting an external monitor gives better data anyway.

                  The gateway should only ever change between PPPoE sessions. If you are seeing it change that implies the PPP session is bouncing which would definitely break open connections.

                  Steve

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                  • F022YF Offline
                    F022Y @stephenw10
                    last edited by F022Y

                    @stephenw10 Well I'll run it like this and see what happens. The missus plays Sea of Thieves and i don't think i can take anymore "IT'S DONE IT AGAIN!!" conversations lol.

                    We do have an AltNet threating to install symmetric 1Gbps fibre which would be a godsend for the ISOs i have to send around and means i can drop a point of failure (the Vigor166) out of the network loop.

                    As an aside this is what my TBB quality check looks like when pfsense shows the 244 gateway.
                    e6bfde08-a04f-42dc-9828-4316b1115680-image.png
                    That to me looks like congestion but my ISP assures me that is just TBB just misreporting.

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                    • stephenw10S Offline
                      stephenw10 Netgate Administrator
                      last edited by

                      Are you on g.fast? Is that an imported V166? When I was looking into this (which was a while back!) Draytek hadn't started selling those in the UK yet.

                      Yeah that graph looks bad. See what the pfSense monitoring graphs look like against 8.8.8.8 after a while. I wouldn't really expect any packet loss unless you're filling the WAN entirely.

                      Steve

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                      • F022YF Offline
                        F022Y @stephenw10
                        last edited by

                        @stephenw10 No not on g.fast and i bought it in the UK

                        stephenw10S 1 Reply Last reply Reply Quote 0
                        • stephenw10S Offline
                          stephenw10 Netgate Administrator @F022Y
                          last edited by

                          Mmm, interesting. Let's see what pfSense shows against 8.8.8.8 then.

                          This is what my WANs look like over 2 days:

                          Screenshot from 2021-12-09 16-10-00.png

                          0% loss on both and minimal latency change. WAN is standard FTTC VDSL, WAN2 is g.fast.
                          That's monitoring against 8.8.8.8 and 8.8.4.4.

                          Steve

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                          • F022YF Offline
                            F022Y @stephenw10
                            last edited by

                            @stephenw10 Where is that graph hiding? I'm still getting used to the interface

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                            • stephenw10S Offline
                              stephenw10 Netgate Administrator
                              last edited by

                              In Status > Monitoring. Hit the 'wrench' icon to configure the graph.

                              F022YF 1 Reply Last reply Reply Quote 1
                              • F022YF Offline
                                F022Y @stephenw10
                                last edited by

                                @stephenw10 Thank you again for your help, i'll report back in a few days :)

                                F022YF 1 Reply Last reply Reply Quote 0
                                • F022YF Offline
                                  F022Y @F022Y
                                  last edited by

                                  So ran it with your suggested change for 2 days.

                                  36e1b11e-4638-432b-9a49-8117b734d53c-image.png

                                  That is just a 80/20 FTTC connection but i think i have been banded as my Draytek show interleaving on the down stream.

                                  1d3318e4-c405-4a4c-bde7-152cdd788d18-image.png

                                  Hopefully DLM will kick in after a few days and sort it out.

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                                  • stephenw10S Offline
                                    stephenw10 Netgate Administrator
                                    last edited by

                                    If you enable the WAN traffic graph on the other axis you can check to see if you were moving a lot of traffic when you saw the packet loss and latency. I don't really expect to see any loss.

                                    I still use an old HG612 there and my line looks similar:

                                    # xdslcmd info --state --stats
                                    xdslcmd: ADSL driver and PHY status
                                    Status: Showtime
                                    Retrain Reason:	0
                                    Last initialization procedure status:	0
                                    Max:	Upstream rate = 26292 Kbps, Downstream rate = 73580 Kbps
                                    Bearer:	0, Upstream rate = 19999 Kbps, Downstream rate = 66999 Kbps
                                    Bearer:	1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
                                    Link Power State:	L0
                                    Mode:			VDSL2 Annex B
                                    VDSL2 Profile:		Profile 17a
                                    TPS-TC:			PTM Mode(0x0)
                                    Trellis:		U:ON /D:ON
                                    Line Status:		No Defect
                                    Training Status:	Showtime
                                    		Down		Up
                                    SNR (dB):	 8.1		 15.3
                                    Attn(dB):	 13.6		 0.0
                                    Pwr(dBm):	 14.0		 3.0
                                    
                                    F022YF 1 Reply Last reply Reply Quote 0
                                    • F022YF Offline
                                      F022Y @stephenw10
                                      last edited by

                                      @stephenw10 I see a few spikes (I expect steam updating)

                                      e5759731-519c-4d15-8314-60c7e6b3806e-image.png

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                                      • F022YF Offline
                                        F022Y
                                        last edited by

                                        Sorry for the delayed response been away for work.

                                        It appears whatever was the cause has gone. Been over a week and no connection drops.

                                        776d45d7-b747-4aea-990c-75bb7e43331f-image.png

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                                        • stephenw10S Offline
                                          stephenw10 Netgate Administrator
                                          last edited by

                                          Nice, something upstream then. Good result. 👍

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                                          • F022YF Offline
                                            F022Y
                                            last edited by

                                            @stephenw10 Afraid to say about 10:30am the internet died. This was followed by the usual unimpressed look from the wife as she was knee deep the the latest season of the witcher.

                                            From the pfsense dashboard the WAN interface shows down

                                            de4e2981-84cd-4cbd-86d7-07fc082f900c-image.png

                                            I can connect to the web GUI of the modem and that looks good.

                                            05380d03-87c0-4bdb-8b3e-d6ccecbaee3f-image.png

                                            From here i've done the usual tests.

                                            VDSL Status
                                            cc2da5d9-9534-4fa1-8d26-09a91fa85ec0-image.png

                                            ping and nslookup from desktop
                                            17e4510f-31d1-40e5-b536-d4b4ae8ec993-image.png

                                            DNS lookup from pfsense
                                            26b07db5-39be-4449-abf7-93fc5427f9d2-image.png

                                            Monitoring from pfsense
                                            d221358a-68df-4f0f-a9fd-b9825a92623c-image.png

                                            Then I tried to even force it
                                            f63f485f-4751-46c2-928a-b4598eaa0625-image.png
                                            37e092f7-aa20-48bd-985b-1cce3f72f3ed-image.png

                                            Ultimately I went to the logs.
                                            24b92b01-b292-46b4-81b1-0426228d6b29-image.png

                                            I rebooted pfsense, nothing. Rebooted the Draytek Vigor 166 modem and it came back to life. I'm kinda stumped at this point so going to ask Draytek support incase i've missed some sort of logging their box does but if you guys see anything i've missed please let me know.

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