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    Solved Elastix: phones lose registration

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    freepbx elastix centos
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    • JaredBuschJ
      JaredBusch @coliver
      last edited by

      @scottalanmiller said:

      According to the "hosting site", their network tooling says that there is packet loss over their site to site connection.

      @coliver said:

      So it seems to be network related then. So this isn't really a PBX or SIP registration problem something funky is going on over the wire.

      I call this done. Not the problem of the PBX.

      1 Reply Last reply Reply Quote 0
      • coliverC
        coliver @gjacobse
        last edited by

        @g.jacobse said:

        Ping from PBX to phone:

        ping xxx.xx.xx.116
PING xxx.xx.xx.116 (xxx.xx.xx.116) 56(84) bytes of data.
64 bytes from xxx.xx.xx.116: icmp_seq=1 ttl=60 time=51.8 ms
64 bytes from xxx.xx.xx.116: icmp_seq=2 ttl=60 time=52.2 ms
64 bytes from xxx.xx.xx.116: icmp_seq=3 ttl=60 time=53.7 ms
64 bytes from xxx.xx.xx.116: icmp_seq=4 ttl=60 time=51.2 ms
64 bytes from xxx.xx.xx.116: icmp_seq=5 ttl=60 time=51.4 ms
64 bytes from xxx.xx.xx.116: icmp_seq=6 ttl=60 time=56.3 ms

        Ok, it is unregistered but still passing packets? Can you run this for a longer period and see what the loss rate is? Something like 100 or 500 packets?

        1 Reply Last reply Reply Quote 0
        • gjacobseG
          gjacobse
          last edited by 

          ---xxx.xx.xx.116 ping statistics ---
152 packets transmitted, 152 received, 0% packet loss, time 151239ms
rtt min/avg/max/mdev = 50.673/53.947/109.152/7.745 ms
          coliverC 1 Reply Last reply Reply Quote 0
          • coliverC
            coliver @gjacobse
            last edited by

            @g.jacobse said:

            ---xxx.xx.xx.116 ping statistics ---
152 packets transmitted, 152 received, 0% packet loss, time 151239ms
rtt min/avg/max/mdev = 50.673/53.947/109.152/7.745 ms

            What is your registration timeout set at?

            1 Reply Last reply Reply Quote 0
            • gjacobseG
              gjacobse
              last edited by

              UDP Keep-alive: 30
              Login Expire: 3600
              SIP Registration retry: 30

              coliverC 1 Reply Last reply Reply Quote 0
              • coliverC
                coliver @gjacobse
                last edited by

                @g.jacobse said:

                UDP Keep-alive: 30
                Login Expire: 3600
                SIP Registration retry: 30

                Is there a registrationattempts entry other then 0?

                1 Reply Last reply Reply Quote 0
                • gjacobseG
                  gjacobse
                  last edited by

                  freepbxregistime.png

                  1 Reply Last reply Reply Quote 0
                  • coliverC
                    coliver
                    last edited by

                    Is there still packet loss on the line according to the hosting site? If there is that would be where I would start. It doesn't seem like the PBX or phones are the issue.

                    1 Reply Last reply Reply Quote 0
                    • gjacobseG
                      gjacobse
                      last edited by

                      We were sent this file from their corporate office:

                      detroitpacket.png

                      coliverC 1 Reply Last reply Reply Quote 0
                      • scottalanmillerS
                        scottalanmiller
                        last edited by

                        Is that really 8% packet loss!?!

                        coliverC 1 Reply Last reply Reply Quote 0
                        • coliverC
                          coliver @scottalanmiller
                          last edited by

                          @scottalanmiller said:

                          Is that really 8% packet loss!?!

                          I can't see the line for packet loss though... it looks like around 4:00 pm and 1AM that there is loss... but I can't really tell.

                          1 Reply Last reply Reply Quote 0
                          • coliverC
                            coliver @gjacobse
                            last edited by

                            @g.jacobse said:

                            We were sent this file from their corporate office:

                            detroitpacket.png

                            If the 8% loss is really what is seen... then you have your issue right there. Something is wrong with the line.

                            1 Reply Last reply Reply Quote 0
                            • gjacobseG
                              gjacobse
                              last edited by gjacobse

                              This was edited.

                              The 8 is the last part of the site name - blanked to remove site / client details.

                              detroitpacket2.png

                              1 Reply Last reply Reply Quote 0
                              • scottalanmillerS
                                scottalanmiller
                                last edited by

                                Oh, how much packet loss is there?

                                1 Reply Last reply Reply Quote 0
                                • gjacobseG
                                  gjacobse
                                  last edited by gjacobse

                                  Something that has been bothering me a bit is MAC addresses.

                                  While it is not a 'end all' tool, I used AngryIP to scan the vLAN .100 - .189 to find all the active IPs. I added MAC access resolution to the scan and when it was done, all 25 IPs had the same MAC address.

                                  I've logged into half of the phones and the phone GUI shows that they are different per phone.

                                  Doing an ARP -a give this:

                                  Interface: xxx.xx.5.111 --- 0xc
  Internet Address      Physical Address      Type
  xxx.xx.xx.100         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.101         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.102         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.103         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.104         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.105         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.106         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.107         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.108         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.109         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.110         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.111         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.112         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.113         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.114         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.115         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.116         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.117         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.118         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.119         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.120         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.121         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.122         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.123         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.124         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.125         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.126         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.127         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.128         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.129         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.130         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.131         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.132         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.133         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.134         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.135         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.136         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.137         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.138         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.139         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.140         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.141         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.142         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.143         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.144         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.145         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.146         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.147         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.148         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.149         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.150         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.151         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.152         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.153         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.154         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.155         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.156         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.157         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.158         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.159         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.160         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.161         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.162         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.163         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.164         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.165         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.166         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.167         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.168         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.169         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.170         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.171         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.172         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.173         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.174         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.175         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.176         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.177         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.178         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.179         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.180         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.181         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.182         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.183         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.184         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.185         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.186         00-01-e8-d7-ab-5f     dynamic
  xxx.xx.xx.187         00-01-e8-d7-ab-5f     dynamic
                                  1 Reply Last reply Reply Quote 0
                                  • JaredBuschJ
                                    JaredBusch
                                    last edited by

                                    Is there NAT involved in their VPN?

                                    Either that or some other routing problem.

                                    I bet that MAC is the router.

                                    If so randomize the SIP port on all the phones. Your problem will go away.

                                    1 Reply Last reply Reply Quote 1
                                    • JaredBuschJ
                                      JaredBusch
                                      last edited by JaredBusch

                                      @g.jacobse said:

                                      00-01-e8-d7-ab-5f

                                      A lookup shows that as Force10 Networks.?
                                      http://www.coffer.com/mac_find/?string=00-01-e8-d7-ab-5f

                                      gjacobseG 1 Reply Last reply Reply Quote 0
                                      • gjacobseG
                                        gjacobse @JaredBusch
                                        last edited by

                                        @JaredBusch said:

                                        @g.jacobse said:

                                        00-01-e8-d7-ab-5f

                                        A lookup shows that as Force10 Networks.?
                                        http://www.coffer.com/mac_find/?string=00-01-e8-d7-ab-5f

                                        Confirmed. Switch as the other end of the VPN.

                                        1 Reply Last reply Reply Quote 0
                                        • JaredBuschJ
                                          JaredBusch
                                          last edited by

                                          @g.jacobse said:

                                          Confirmed. Switch as the other end of the VPN.

                                          Change the phones to use some port other than 5060 for the SIP registration.
                                          Make sure they are all different as you cannot reuse the same port behind a NAT and this issue is looking to me like that.

                                          coliverC 1 Reply Last reply Reply Quote 0
                                          • JaredBuschJ
                                            JaredBusch
                                            last edited by

                                            Well, that or make who ever runs the network figure out what is happening on their side.

                                            scottalanmillerS 1 Reply Last reply Reply Quote 1
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