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    High Latency on Local ping

    Scheduled Pinned Locked Moved General pfSense Questions
    12 Posts 4 Posters 3.4k Views
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    • johnpozJ
      johnpoz LAYER 8 Global Moderator
      last edited by

      What exact isp router is this - make and model? I take it there are other "lan" ports on this device? As mentioned if you connect some other device and ping the isp device 192.168.1.1 - do you get normal response times? I would assume something sub 1ms would be the norm.

      You could try telling pfsense that gateway is always UP.. And then see what your response time to stuff upstream is like.

      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 2.7.2, 24.11

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        rjabellax5 @JKnott
        last edited by rjabellax5

        @jknott The delay is also experienced behin the pfsense box. But when i connect my laptop directly to ISP router, the latency is normal, 1ms.

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          rjabellax5
          last edited by

          The ISP modem model is: Zytel AMG1302-T10D

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            rjabellax5 @johnpoz
            last edited by rjabellax5

            @johnpoz Other lan ports are disabled by the ISP. I can only use port number 1 of that router.

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            • johnpozJ
              johnpoz LAYER 8 Global Moderator
              last edited by johnpoz

              Seems odd they would disable the other switch ports - but ok. The only thing that comes to mind off the top of my head tha would be different with pfsense pinging the upstream gateway in its monitoring vs a PC plugged in would be that pfsense uses a zero sized ping while a client by default will add some size to it.. You can alter the monitoring ping so it has some size to it vs 0.

              0_1533127092020_payloadping.png

              Oh - just looked you actually just pinged it from pfsense cmd line - so yeah that has size.. Did you mark the gateway up always and then ping through to something on the internet?

              0_1533127277922_diablemon.png

              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 2.7.2, 24.11

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                rjabellax5 @johnpoz
                last edited by

                @johnpoz Thank you Mr. johnpoz. For now, I temporarily removed the pfsense from the network. I am waiting for my ISP to replace the modem. Im sure the problem will be gone after they replace the ISP router.

                Thank you for the time replying.

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                  edooze @rjabellax5
                  last edited by

                  @rjabellax5
                  FWIW, in the past I have had an issue with ping times being high and with packet loss occurring when I had (stupidly) set two interfaces on the network with the same IP address - and of course some went to the wrong place.

                  I can't remember the exact details, but that was the culprit.

                  I would try running a traceroute also to see if it is randomly trying to send your packets elsewhere before direct to the router.

                  Also, are you able to Ping and Traceroute to, say, 8.8.8.8 or something external and see if there is a difference?

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                    rjabellax5 @edooze
                    last edited by

                    @edooze Hi, Even if theres no other device connected to the network, i still get high pings. I also did a traceroute and its stuck on the 192.168.1.1 gateway then it'll time out.

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                    • johnpozJ
                      johnpoz LAYER 8 Global Moderator
                      last edited by

                      And will ask again... Did you turn off monitoring - ie mark the gateway always up and ping to something else past the device, ie say 8.8.8.8?

                      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 2.7.2, 24.11

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                        rjabellax5 @johnpoz
                        last edited by

                        @johnpoz No I haven't done it yet. I'll post the update as soon as I redeploy my pfsense box.

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