PF not routing traffic to IPv4 interface when IPv6 is enabled

Max Laier max at love2party.net
Tue Dec 18 09:29:19 PST 2007


On Thursday 13 December 2007, Ryan Phillips wrote:
> Ryan Phillips <ryan-bsd at trolocsis.com> said:
> > Hi all,
> >
> > I just noticed that on my Freebsd server the PF firewall is not
> > filtering packets for ipv4.   Recently another admin enabled IPv6
> > within rc.conf, but we never assigned an IP6 IP.  The interface has
> > one IPv4 IP and many aliases for other IP4 IPs we own.
>
> Clarification: The IPv6 interface does have a ipv6 link local address.

You don't give enough information to debug this problem.  At very least 
your ruleset (-vvgsr) and ifconfig should be supplied.

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