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Date:      Tue, 30 Apr 2002 18:25:12 +0400
From:      Anton Shcherbinin <useperl@fastmail.fm>
To:        Greg 'groggy' Lehey <grog@FreeBSD.org>
Cc:        freebsd-questions@freebsd.org
Subject:   IPv6: how can I get rid of it?
Message-ID:  <1029992656.20020430182512@fastmail.fm>
In-Reply-To: <20020430112831.B8571@wantadilla.lemis.com>
References:  <743669500.20020427213601@fastmail.fm> <LPBBIGIAAKKEOEJOLEGOOEPMCOAA.barbish@a1poweruser.com> <20020428104538.B83112@wantadilla.lemis.com> <1411696390.20020428231738@fastmail.fm> <20020429122206.A55341@xor.obsecurity.org> <20020430112831.B8571@wantadilla.lemis.com>

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Tuesday, April 30, 2002, 5:58:31, Greg 'groggy' Lehey wrote:

> On Monday, 29 April 2002 at 12:22:07 -0700, Kris Kennaway wrote:
>> On Sun, Apr 28, 2002 at 11:17:38PM +0400, Anton Shcherbinin wrote:
>>
>>> As   I  have already said, the same happens with any application and any
>>> host.  E. g., with ftp and ftp.freebsd.org :
>>> 1) my host queries our DNS server for AAAA record of ftp.freebsd.org
>>> 2) query times out in 5 secs
>>> 3) the same query
>>> 4) query times out in 10 secs
>>> 5) the same query
>>> 6) query times out in 20 secs
>>> 7) the same query
>>> 8) query times out in 40 secs
>>
>> Your DNS server is broken.  It should be returning an error if it
>> doesn't understand the AAAA request, or an appropriate IPv6 address
>> if it exists, or an "address not found" packet.

> Hmm, indeed, that sounds like the solution.

Well Greg, that probably 'sounds like' 'kind of' *a* solution. But in my
humble  opinion  that is not *the* solution. Actually, not a solution at
all.  The  problem  is the very fact that my FBSD box *tries* to look up
AAAA  records  before  A  records.  My  DNS  server is really a bit dumb
(stupid?), but that is *another* problem.

> Anton, have you tried a different name server?

I have just tried my ISP's name server. Well, it reduces the delays, but
it does not *cure* the disease. E. g., now sendmail starts up during ~45
seconds   (compared   to   150   seconds   before). Faster, though still
veeeery slow.

Thank  you,  Greg,  thank you, Nathan KInkade for your help. I will have
holidays   till   May   13,   but  then I hope I'll be able to recompile
sendmail,  ftp, ftpd, telnet et al (maybe even kernel?) to make them use
good old IP v.4.

Again, thanks everybody who participated in this thread!

-- 
Anton


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