TFTP Open Timeout

  • Forgive me if this has been answered before but I couldn’t find the solution. I used to have v.32 working just fine.

    I keep getting a TFTP Open Timeout error when a client tries to boot. I can’t get this thing to boot from the server.

    CentOS 6 Server running FOG 1.1.1 (TFTP without DHCP)
    PFsense router with DHCP correctly configured. The clients are given DHCP addresses properly.
    firewall is disabled
    Option 67 is set as /undionly.kpxe.

    Am I doing this right? I can’t tell if TFTP is running because it’s under xinet. That part is new to me.

  • I’ve solved this. I hadn’t configured dhcpd.conf correctly in my pfSense router.

    Apparently, [CODE]option tftp-server-name “ipaddressofserver”;[/CODE] doesn’t do anything, which I find weird. Only the [CODE]next-server[/CODE] seems to work.

    Thanks for your help everybody.

  • Developer

    Connection refused means that there is a firewall(iptables/ufw) issue or the service is no longer operating correctly. On some versions of Ubuntu tftp will fail for unknown reasons and will need to be restarted.

  • option 67 was set to undionly.kpxe.

    [CODE] tftp x.x.x.x get undionly.kpxe[/CODE]

    gives me a server error:

    tftpd: read(ack): Connection refused

    selinux is set to permissive and iptables is off. Permissions on /tftpboot are 777.

  • Developer

  • Senior Developer

    Is it set as: /undionly.kpxe or undionly.kpxe?

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