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[Please wrap your posts before 80 columns

On Thu, Feb 28, 2008 at 09:02:20PM +0700, Pongthep Kulkrisada wrote:
>> You're not getting responses back from __any__ of those NTP servers. If
>> you have a firewall *in front* of your BSD box (meaning a separate box,
>> not ipfw/ipfilter/pf on the same BSD box!), then this is likely the
>> cause of the problem.

>The question is that two weeks ago, with same machine, same gateway,
>same NAT and same firewall config, when I was on FreeBSD 6.2-RELEASE
>and behind NAT, I could sync with ALL IPv6 servers (IPv4 is not
>functioning there) I said that in my first post.


The tcpdump you posted shows that your ntpd is sending IPv4 packets
=66rom an RFC1918 address to a number of other valid IPv4 addresses and
getting no response.

If you are expecting to connect via IPv6 then the first issue you need
to address is why your ntpd is failing to generate any IPv6 packets.
Have you changed your rc.conf, ntpd.conf, hosts, nsswitch.conf or
resolv.conf since you upgraded?
Do you have IP addresses or hostnames in your ntp.conf?
If you have hostnames, can you do an AAAA lookup on them and get back
the correct addresses?
If you built your own world, are you sure a NOINET6 hasn't snuck in
somewhere?

--=20
Peter Jeremy
Please excuse any delays as the result of my ISP's inability to implement
an MTA that is either RFC2821-compliant or matches their claimed behaviour.

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