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

Best address to use for Gateway monitoring

Scheduled Pinned Locked Moved Routing and Multi WAN
7 Posts 4 Posters 955 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
    coreybrett
    last edited by Jul 31, 2018, 5:39 PM

    Do ISPs have addresses they suggest for gateway monitoring?

    Sometimes the gateway itself doesn't respond to pings consistently even though the connection itself is ok.

    I've used 8.8.8.8 and 9.9.9.9, but that seems like a hack to me.

    ISP tech support usually doesn't have a clue what I am talking about.

    1 Reply Last reply Reply Quote 0
    • J
      johnpoz LAYER 8 Global Moderator
      last edited by Jul 31, 2018, 6:49 PM

      @coreybrett said in Best address to use for Gateway monitoring:

      ISP tech support usually doesn't have a clue what I am talking about.

      And that is surprising to you why? Doesn't matter what the question is - if its not on their script they will not have a clue..

      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
      • D
        Derelict LAYER 8 Netgate
        last edited by Jul 31, 2018, 7:00 PM

        The real answer is "it depends."

        It depends on how far out you want to monitor and how reliably that host responds to your pings in your situation. I am currently monitoring the ISP gateway on Cable and 8.8.4.4 on DSL.

        Keep in mind that the gateway monitor sets up a host route out that interface so monitoring an address you are not using for something else (like DNS) might lead to less head-scratching in other areas. In my example I don't use 8.8.4.4 for DNS. I am using Quad9.

        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
        • C
          coreybrett
          last edited by Jul 31, 2018, 7:11 PM

          Is it possible to monitor more than a single address? In-case that address goes down, not the connection to it.

          1 Reply Last reply Reply Quote 0
          • D
            deanot
            last edited by Aug 3, 2018, 11:29 PM

            You only have the option of one address per monitor..

            I just wrote a small post on this very issue, if you can help it, avoid google, I was getting high latency marking my WANS as being down. Use your own ISP if you can, if like mine they are slow, try opendns as a monitor.

            PFSense System Specs.
            –---------------
            Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz
            4 CPUs: 1 package(s) x 4 core(s) 4 port HP Branded Intel Ethernet Card

            1 Reply Last reply Reply Quote 0
            • C
              coreybrett
              last edited by Aug 3, 2018, 11:47 PM

              would be great if ISPs had nodes dedicated to this purpose, not sure how a practice like that would be encouraged from customers though

              1 Reply Last reply Reply Quote 0
              • C
                coreybrett
                last edited by Aug 3, 2018, 11:52 PM

                I was using the gateway for awhile, but felt it was giving me poor results, so I switched to 9.9.9.9, but started getting some issues with that, now I'm on 8.8.4.4, so far so good

                the only reason I care is because it was causing my gateway group to flap, which kept reconnecting my VPN tunnels over the cellular backup

                1 Reply Last reply Reply Quote 0
                7 out of 7
                • First post
                  7/7
                  Last post
                Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.
                  This community forum collects and processes your personal information.
                  consent.not_received