On Wed, Feb 2, 2011 at 6:25 PM, Trent W. Buck <t...@cybersource.com.au> wrote: > "Brian K. White" <br...@aljex.com> writes: > >> I just use 02:00:<ip address> which ends up being automatically unique >> enough to not collide with anything else on your subnet assuming you >> already know the ip's you want to use >> >> IP=192.168.0.50 # container nic IP >> HA=`printf "02:00:%x:%x:%x:%x" ${IP//./ }` # generate a MAC from the IP > > I think I'll adopt a slight variation of this -- computing the MAC from > the hostname, which are guaranteed by my site policy to be [a-z]{5}. > Where 06 is an arbitrarily chosen local unicast range, > > $ f () { python -c "print '06%010x' % int('$(LC_ALL=C tr <<<"$1" a-z > 0-9a-p)',26)"; } > $ f zorba > 060000b240be > > This allows my DHCP server to continue mapping MAC->IP, while actually > getting it from a hostname (which policy says won't change). > > And I'll do this for all my containers, so that even containers that > have automatically assigned IPs will be relatively persistent (because > dnsmasq remembers MAC->IP leases and re-uses them preferentially).
Provided container's hostname are unique across different hosts? ~nirmal > > > ------------------------------------------------------------------------------ > Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! > Finally, a world-class log management solution at an even better price-free! > Download using promo code Free_Logger_4_Dev2Dev. Offer expires > February 28th, so secure your free ArcSight Logger TODAY! > http://p.sf.net/sfu/arcsight-sfd2d > _______________________________________________ > Lxc-users mailing list > Lxc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/lxc-users > ------------------------------------------------------------------------------ The modern datacenter depends on network connectivity to access resources and provide services. The best practices for maximizing a physical server's connectivity to a physical network are well understood - see how these rules translate into the virtual world? http://p.sf.net/sfu/oracle-sfdevnlfb _______________________________________________ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users