Nirmal Guhan <vavat...@gmail.com> writes: > 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?
Certainly; mine are. ------------------------------------------------------------------------------ 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