ntpq reports different polling intervall than thesniffed UDP packet - NTP

This is a discussion on ntpq reports different polling intervall than thesniffed UDP packet - NTP ; Hello, I'm wondering why I get from ntpq this output : tfoerste@n22 ~/devel/linux-2.6 $ ntpq -pn remote refid st t when poll reach delay offset jit ter ================================================== ========================*85.25.144.154 143.93.99.252 2 u 84 128 377 29.453 10.241 1. 066 +87.32.12.19 ...

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Thread: ntpq reports different polling intervall than thesniffed UDP packet

  1. ntpq reports different polling intervall than thesniffed UDP packet

    Hello,

    I'm wondering why I get from ntpq this output :

    tfoerste@n22 ~/devel/linux-2.6 $ ntpq -pn
    remote refid st t when poll reach delay offset jit
    ter
    ================================================== ========================*85.25.144.154 143.93.99.252 2 u 84 128 377 29.453 10.241 1.
    066
    +87.32.12.19 4.176.44.157 2 u 88 128 377 50.685 8.234 1.
    607
    +81.169.180.26 192.53.103.104 2 u 4 128 377 31.092 -1.381 1.
    082

    whereas the field "peer polling intervall" of the sniffed network stream sh
    ows a value of 8 (=%6 sec)
    for all packets except packet 3 and 4.


    --
    MfG/Sincerely

    Toralf Förster
    pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3

  2. Re: ntpq reports different polling intervall than the sniffed UDPpacket

    How did you sniff ?
    Are you using tcpdump/ethereal ?

    Venu

    Toralf Förster wrote:
    > Hello,
    >
    > I'm wondering why I get from ntpq this output :
    >
    > tfoerste@n22 ~/devel/linux-2.6 $ ntpq -pn
    > remote refid st t when poll reach delay offset jit
    > ter
    > ================================================== =======================
    > *85.25.144.154 143.93.99.252 2 u 84 128 377 29.453 10.241 1.
    > 066
    > +87.32.12.19 4.176.44.157 2 u 88 128 377 50.685 8.234 1.
    > 607
    > +81.169.180.26 192.53.103.104 2 u 4 128 377 31.092 -1.381 1.
    > 082
    >
    > whereas the field "peer polling intervall" of the sniffed network stream sh
    > ows a value of 8 (=56 sec)
    > for all packets except packet 3 and 4.
    >
    >


  3. Re: ntpq reports different polling intervall than the sniffed UDPpacket

    Toralf Förster wrote:

    > +81.169.180.26 192.53.103.104 2 u 4 128 377 31.092 -1.381 1.
    > 082
    >
    > whereas the field "peer polling intervall" of the sniffed network stream sh
    > ows a value of 8 (=56 sec)
    > for all packets except packet 3 and 4.
    >


    Your Usenet client (combination of your email program and the list to
    Usenet gateway) has broken MIME quoted-printable handling, with the
    result that I see 56, rather than 256, although the
    exact behaviour is error recovery dependent.

    You haven't included the trace, so I don't know what you mean by packets
    3 and 4. If you included these as an attachment, please note that the
    mailing list is not the real forum, it is just a convenience for
    accessing the newsgroup comp.protocols.time.ntp, which is a non-binaries
    group, so should not have attachments (and any may well have been
    stripped by the gateway as a result).

    >



  4. Re: ntpq reports different polling intervall than the sniffed UDP packet

    On 2008-03-20, David Woolley wrote:

    > Toralf Förster wrote:
    >
    >> +81.169.180.26 192.53.103.104 2 u 4 128 377 31.092 -1.381 1.082
    >>
    >> whereas the field "peer polling intervall" of the sniffed network
    >> stream sh ows a value of 8 (=56 sec) for all packets except packet 3
    >> and 4.

    >
    > Your Usenet client (combination of your email program and the list to
    > Usenet gateway) has broken MIME quoted-printable handling, with the
    > result that I see 56, rather than 256, although the
    > exact behaviour is error recovery dependent.


    His original message to the questions@ list is here:

    https://lists.ntp.org/pipermail/ques...ch/017925.html

    --
    Steve Kostecke
    NTP Public Services Project - http://support.ntp.org/

  5. Re: ntpq reports different polling intervall than the sniffed UDPpacket


    > His original message to the questions@ list is here:
    >
    > https://lists.ntp.org/pipermail/ques...ch/017925.html
    >


    Thanks. Different error recovery for the invalid quoted printable, but
    it still has the attachment stripped, because it was a binary.


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