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    TFTP ARP Timeout

    Scheduled Pinned Locked Moved Solved
    FOG Problems
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    • george1421G
      george1421 Moderator @cammykool
      last edited by george1421

      @cammykool Actually if you look after the IP address is /8 or 255.0.0.0. Then reboot the fog server since it may only load at boot time.

      edit, maybe you could do sudo ifdown enp0s25 then sudo ifup enp0s25 to avoid the reboot time.

      Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

      C 1 Reply Last reply Reply Quote 0
      • george1421G
        george1421 Moderator
        last edited by

        Understand that fixing the subnet mask may not address the pxe booting problem, but it will fix ARP resolution. The subnet mask controls where the broadcast address is. Two different subnet masks have their broadcast address in different locations so the two clients will have difficulty finding each other.

        Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

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        • C
          cammykool @george1421
          last edited by cammykool

          @george1421 it looked to be /8 too before

          pxe is still getting 255.255.0.0 at boot

          george1421G 1 Reply Last reply Reply Quote 0
          • george1421G
            george1421 Moderator @cammykool
            last edited by george1421

            @cammykool So you updated the network manager application and then either did the ifup/ifdown or reboot and its still set to /8?

            The pxe stuff is coming from your dhcp server not the fog server. Your client is still having a problem finding the fog server from your first picture.

            Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

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            • C
              cammykool
              last edited by

              yes it is. Netowkr manager has always been correct.

              george1421G 1 Reply Last reply Reply Quote 0
              • C
                cammykool
                last edited by

                im working on the guide i was sent initially. boss gave me direct access to the DHCP server

                1 Reply Last reply Reply Quote 0
                • george1421G
                  george1421 Moderator @cammykool
                  last edited by

                  @cammykool said in TFTP ARP Timeout:

                  yes it is. Netowkr manager has always been correct.

                  Ok I think I’m lost here (not surprised since I jumped in late). The subnet mask of /16 255.255.0.0 is coming from your windows dhcp server. That has to be the right subnet mask for your network. Why is the FOG server set to /8 255.0.0.0?

                  What is the correct subnet mask for your computers? You can open a command windows on your dhcp server and key in ipconfig /all to confirm your subnet mask. The fog server needs to have the same subnetmask as your windows servers.

                  Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

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                  • C
                    cammykool @george1421
                    last edited by

                    @george1421 huh my windows box is getting 255.255.0.0 too. He gave me the 255.0.0.0 to use. Ill Change it

                    george1421G 1 Reply Last reply Reply Quote 0
                    • george1421G
                      george1421 Moderator @cammykool
                      last edited by

                      @cammykool said in TFTP ARP Timeout:

                      He gave me the 255.0.0.0 to use

                      Hmm sounds like someone is being setup for failure right out of the box. 😉

                      Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

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                      • C
                        cammykool
                        last edited by

                        68803050_2148046818829855_1156930693368905728_n.jpg image url)

                        This is the data he gave me to use LMAO

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                        • C
                          cammykool
                          last edited by

                          Do you think subnet mask could be the issue?

                          1 Reply Last reply Reply Quote 0
                          • C
                            cammykool
                            last edited by

                            user@fog:~$ ip addr show
                            1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
                                link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
                                inet 127.0.0.1/8 scope host lo
                                   valid_lft forever preferred_lft forever
                                inet6 ::1/128 scope host
                                   valid_lft forever preferred_lft forever
                            2: enp0s25: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
                                link/ether 18:03:73:cf:ab:5a brd ff:ff:ff:ff:ff:ff
                                inet 10.1.80.1/16 brd 10.1.255.255 scope global noprefixroute enp0s25
                                   valid_lft forever preferred_lft forever
                                inet6 fe80::7298:8d49:d303:484d/64 scope link noprefixroute
                                   valid_lft forever preferred_lft forever
                            

                            there we go

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                            • C
                              cammykool
                              last edited by

                              Still ARP timeout. now the DHCP IP is 10.1.0.3 before it was 10.1.0.2

                              george1421G 1 Reply Last reply Reply Quote 0
                              • george1421G
                                george1421 Moderator @cammykool
                                last edited by george1421

                                @cammykool Do you have 2 dhcp servers on your network? I might guess one is 10.1.0.3 and the other is 10.1.0.2??

                                If we can’t get it I have a tutorial that will allow the fog server to capture the pxe booting process. Once captured we can look at it and tell a bit more about why the arp timeout. https://forums.fogproject.org/topic/9673/when-dhcp-pxe-booting-process-goes-bad-and-you-have-no-clue

                                Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

                                C 1 Reply Last reply Reply Quote 0
                                • C
                                  cammykool @george1421
                                  last edited by

                                  @george1421 no just DHCP on 10.1.0.1

                                  DNS is 2 and 3

                                  george1421G 1 Reply Last reply Reply Quote 0
                                  • george1421G
                                    george1421 Moderator @cammykool
                                    last edited by

                                    @cammykool OK lets follow the tutorial I posted. Upload the pcap to a file share site and post the link here. I’ll take a look at it. Once we are done you can remove the file from the file share site.

                                    Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

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                                    • C
                                      cammykool @george1421
                                      last edited by

                                      @george1421

                                      https://drive.google.com/open?id=1j0MRC88x-0h-5iLnocLhEgvdKHj8CWgB

                                      george1421G 2 Replies Last reply Reply Quote 0
                                      • george1421G
                                        george1421 Moderator @cammykool
                                        last edited by

                                        @cammykool OK let me look

                                        Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

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                                        • C
                                          cammykool @george1421
                                          last edited by

                                          @george1421 Thanks man. I appreciate it.

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                                          • george1421G
                                            george1421 Moderator @cammykool
                                            last edited by

                                            @cammykool OK if you have wireshark go ahead and open the pcap so I can show you.

                                            Lets switch over to FOG IM so turnaround is quicker. I have a few questions.

                                            Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

                                            george1421G 1 Reply Last reply Reply Quote 0
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