Date: Fri, 19 Dec 2008 03:18:37 +0900 From: Hajimu UMEMOTO <ume@freebsd.org> To: Ivan Voras <ivoras@freebsd.org> Cc: freebsd-net@freebsd.org Subject: Re: 6to4 in 6.3-R? Message-ID: <yge4p11xs76.wl%ume@mahoroba.org> In-Reply-To: <gi950h$91i$1@ger.gmane.org> References: <gi950h$91i$1@ger.gmane.org>
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Hi,
>>>>> On Tue, 16 Dec 2008 22:01:59 +0100
>>>>> Ivan Voras <ivoras@freebsd.org> said:
ivoras> > ping6 www.freebsd.org
ivoras> PING6(56=40+8+8 bytes) 2002:a135:xxyy::1 --> 2001:4f8:fff6::21
ivoras> ping6: sendmsg: Permission denied
ivoras> ping6: wrote www.freebsd.org 16 chars, ret=-1
ivoras> ping6: sendmsg: Permission denied
ivoras> ping6: wrote www.freebsd.org 16 chars, ret=-1
ivoras> ^C
ivoras> --- www.freebsd.org ping6 statistics ---
ivoras> 2 packets transmitted, 0 packets received, 100.0% packet loss
ivoras> It can ping6 itself. I have ipfw here but a very early rule says "allow
ivoras> ipv6 from any to any". It's triggered, judging by the packet counts, but
ivoras> apparently only in one direction (in the above example, only 2 packets
ivoras> would be accounted for).
Though "allow ipv6 from any to any" allows native IPv6 traffic, it
doesn't allow IPv6 over IPv4 traffic e.g. 6to4. I suspect you don't
have a rule to allow 6to4 traffic. Please try the following rule, and
see the result:
allow ip4 from any to any proto ipv6
Sincerely,
--
Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan
ume@mahoroba.org ume@{,jp.}FreeBSD.org
http://www.imasy.org/~ume/
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