On (05/13/10 13:25), Edward Pilatowicz wrote:
> > Currently, none, though the  "only ipv4 specified implies ipv6-addrs
> > are forbidden" approach solves that.  In retrospect,  that choices
> > seems simpler and cleaner. Is that preferable?
> >
> 
> i think so.

Ok, I'll send out an updated spec (that also incorporates Girish's
feedback) later this week.

> > > - can exclusive stack zones manipulate mac addresses on network
> > >   interfaces?
> >
> >  yes- they can use 'ifconfig .. ether <..>'.
> > ..  the address property only clamps dow the IP address,
> > and makes no promises about the mac address associated with the IP address.
> >
> 
> given that one of the motivation for this work is to prevent zones from
> using addresses they shouldn't (and there by being capable of DOS-ing
> hosts using those addresses) it seems like we should have a zonecfg
> mechanism that prevents mac address manipulation.  i don't know if that
> should be bundled in with this proposed IP limiting mechanism (ie. if a
> user specifies an IP address the mac would automatically be locked down)
> or if there should be a seperate knob to control this.  thoughts?

Rishi Srivatsavai is looking into the work entailed to have mac-nospoof
enabled for NGZ by default.. just talked to Rishi, and I think it makes
sense, as part of that work, to also ensure that the mac address cannot
be changed by ifconfig.

--Sowmini

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