SSH login takes very long time...sometimes

Hajimu UMEMOTO ume at freebsd.org
Sun Feb 26 18:10:28 PST 2006


Hi,

>>>>> On Sun, 26 Feb 2006 22:56:32 +0200
>>>>> Rostislav Krasny <rosti.bsd at gmail.com> said:

rosti> Could you please suggest a good
rosti> comprehensive article on the Web about IPv4-mapped IPv6 addresses and
rosti> their usage?

You can find some documents by googling with `IPv4-mapped IPv6
address'.
In addition, you should read RFC 4038:

	http://www.ietf.org/rfc/rfc4038.txt?number=4038

rosti> By the way, why you don't do the address type test in a
rosti> daemon mode of ftpd?

Because, ftpd(8) in daemon mode doesn't accept an IPv4 using an
IPv4-mapped IPv6 address by issuing the IPV6_V6ONLY socket option.
Please refer socksetup().
In inetd mode, enable/disable use of an IPv4-mapped IPv6 address is
depending on how to configure inetd.conf.  So, we need to pay
attention to an IPv4-mapped IPv6 address in inetd mode.

Sincerely,

--
Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan
ume at mahoroba.org  ume@{,jp.}FreeBSD.org
http://www.imasy.org/~ume/


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