We use the public Ip of the node to add iptables and other routing rules within the node. We also use the public IP and hostname
to associate a DNS address with the applications hosted on the node.
I would recommend setting up a static IP or re-applying the puppet script when the ipaddress changes.
On Jun 25, 2013, at 5:37 AM, "Yan, Shoumeng" <shoumeng yan intel com> wrote: