current-users: Re: sendmail: strange IPv6 reverse lookup (1-5-RELEASE)

Subject: Re: sendmail: strange IPv6 reverse lookup (1-5-RELEASE)
To: Ingolf Steinbach <ingolf@jellonet.de>
From: None <itojun@iijlab.net>
List: current-users
Date: 12/07/2000 19:00:47

>>on NetBSD-1.5, sendmail causes strange reverse lookups for
>>IPv6 addresses:
>>The interface is configured as follows.
>># ifconfig we1
>>we1: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>>        media: Ethernet 10base5
>>        inet 192.168.2.4 netmask 0xffffff00 broadcast 192.168.2.255
>>        inet6 fe80::200:c0ff:fe20:6b63%we1 prefixlen 64 scopeid 0x1
>>        inet6 fec0::200:c0ff:fe20:6b63 prefixlen 64
>>The query issued at 22:22:17.562950 seems to be ok for me.
>>But what about the others?
>	it seems that sendmail is using result from SIOCGIFCONF incorrectly.
>	i'll try to look at it (sendmail shouldn't reverse-lookup DNS for
>	link-local address, anyways).

	it was sendmail 8.11.1 issue.  i've put a couple of workarounds
	into netbsd-current tree.  i've reported the issue to sendmail.org
	too, i hope it to be fixed in future sendmail releases.

itojun