queries with no RD bit set are truncating

[Peter Andreev]

Because there is nothing in server's logs.
While client sees following:

(query with no RD bit)
  - Flags:  Query, Opcode - QUERY (Standard query), Rcode - Success
     QR:                (0...............) Query
     Opcode:            (.0000...........) QUERY (Standard query) 0
     AA:                (.....0..........) Not authoritative
     TC:                (......0.........) Not truncated
     RD:                (.......0........) Recursion not desired  <- no
recursion!
     RA:                (........0.......) Recursive query support not
available
     Zero:              (.........0......) 0
     AuthenticatedData: (..........0.....) Not AuthenticatedData
     CheckingDisabled:  (...........0....) Not CheckingDisabled
     Rcode:             (............0000) Success 0
    QuestionCount: 1 (0x1)
    AnswerCount: 0 (0x0)
    NameServerCount: 0 (0x0)
    AdditionalCount: 0 (0x0)

(answer)
  - Flags:  Response, Opcode - QUERY (Standard query), AA, TC, Rcode -
Success
     QR:                (1...............) Response
     Opcode:            (.0000...........) QUERY (Standard query) 0
     AA:                (.....1..........) Is authoritative
     TC:                (......1.........) Message truncated <- message is
truncated!
     RD:                (.......0........) Recursion not desired
     RA:                (........0.......) Recursive query support not
available
     Zero:              (.........0......) 0
     AuthenticatedData: (..........0.....) Not AuthenticatedData
     CheckingDisabled:  (...........0....) Not CheckingDisabled
     Rcode:             (............0000) Success 0
    QuestionCount: 1 (0x1)
    AnswerCount: 0 (0x0)
    NameServerCount: 0 (0x0)
    AdditionalCount: 0 (0x0)

(query with RD bit)
  - Flags:  Query, Opcode - QUERY (Standard query), RD, Rcode - Success
     QR:                (0...............) Query
     Opcode:            (.0000...........) QUERY (Standard query) 0
     AA:                (.....0..........) Not authoritative
     TC:                (......0.........) Not truncated
     RD:                (.......1........) Recursion desired <- RD-flag
set!
     RA:                (........0.......) Recursive query support not
available
     Zero:              (.........0......) 0
     AuthenticatedData: (..........0.....) Not AuthenticatedData
     CheckingDisabled:  (...........0....) Not CheckingDisabled
     Rcode:             (............0000) Success 0
    QuestionCount: 1 (0x1)
    AnswerCount: 0 (0x0)
    NameServerCount: 0 (0x0)
    AdditionalCount: 0 (0x0)

(answer)
  - Flags:  Response, Opcode - QUERY (Standard query), AA, RD, Rcode -
Success
     QR:                (1...............) Response
     Opcode:            (.0000...........) QUERY (Standard query) 0
     AA:                (.....1..........) Is authoritative
     TC:                (......0.........) Not truncated <- TC-flag not set
     RD:                (.......1........) Recursion desired
     RA:                (........0.......) Recursive query support not
available
     Zero:              (.........0......) 0
     AuthenticatedData: (..........0.....) Not AuthenticatedData
     CheckingDisabled:  (...........0....) Not CheckingDisabled
     Rcode:             (............0000) Success 0
    QuestionCount: 1 (0x1)
    AnswerCount: 5 (0x5)
    NameServerCount: 0 (0x0)
    AdditionalCount: 3 (0x3)

I do not understand why so occurs.


>         Peter, why don't you post what you are seeing?
>
>        Mark
> --
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia
> PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.isc.org/pipermail/bind-users/attachments/20090615/490c2af2/attachment.html>