I have a problem that I cannot seem to resolve. I have two hosts M and N. A container in host M can ping the gateway, its host and all containers in Host N but cannot ping any co-hosted container in host M. The same with containers in host N that can ping all containers in host M but cannot ping any of its co-hosted containers. I have verified that they all have unique hardware address.

My hosts run on ubuntu 14.04 but all containers run on ubuntu 12.04. I had to use 12.04 to accommodate Ambari from Horton Works that does not yet support 14.04.

Network - > Bridge br0 (I have 2 Network adapters)

auto lo iface lo inet loopback

First Adapter

auto p130p1

iface p130p1 inet static

address netmask





Second Adapter Bridge

auto eth0

iface eth0 inet manual

auto br0

iface br0 inet dhcp

bridge_ports eth0

bridge_stp off

bridge_fd 0

bridge_maxwait 0

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