On 2014/04/29 23:12, Stuart Henderson wrote:
> On 2014/04/29 22:25, Paul de Weerd wrote:
> > Disabling IPv6 should not be necessary: it shouldn't be enabled by
> > default, even link-local addresses.
> 
> If doing this, then we need a way to enable link-local, like the opposite
> of "ifconfig $if -inet6". Current process to re-enable just the link-local
> is to configure some other v6 address and delete it again, which is
> acceptable when the option to remove the link-local is just used by people
> who explicitly don't want v6 at all, but is a bit too ugly if it's
> something that people need to use just to enable v6.
> 
> I also wonder about blocking all-nodes mcast in the sample pf.conf...
> (personally there are places I find them very useful but I think this is
> a saner default - it's always fun doing a node-name query on conference
> wifi/etc).
> 
> Index: pf.conf
> ===================================================================
> RCS file: /cvs/src/etc/pf.conf,v
> retrieving revision 1.53
> diff -u -p -r1.53 pf.conf
> --- pf.conf   25 Jan 2014 10:28:36 -0000      1.53
> +++ pf.conf   29 Apr 2014 21:35:03 -0000
> @@ -19,6 +19,8 @@ set skip on lo
>  block return # block stateless traffic
>  pass         # establish keep-state
>  
> +block in inet6 proto icmp6 to ff02::1        # block all-nodes multicast 
> queries
> +

doh. this is not quite targetted enough ;) maybe drop types
128 and 139 - any others?

Reply via email to