queries with no RD bit set are truncating

[Mark Andrews]

	Showing just the header is not very useful.  Please show the
	FULL question and the FULL answer.

	Mark

In message <f45e198a0906150105m1fd418dau35bb91bc57300032 at mail.gmail.com>, Peter
 Andreev writes:
> 
> 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
> >
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org