Setup:
3 control nodes
2 compute nodes
3 ODL - cluster setup

Distro: nitrogen formal release

Steps to reproduce
1. Create two networks
2. Create a VM for each network
3. Create a router and network interfaces
4. Create 2 SG. (sg-connectivity and sg-connectivity2)

Add rules to sg-connectivity
openstack security group rule create sg-connectivity --ingress --dst-port 22:22 --protocol tcp
openstack security group rule create sg-connectivity --egress --dst-port 22:22 --protocol tcp
openstack security group rule create sg-connectivity --ingress --protocol 1 --remote-group sg-connectivity2
openstack security group rule create sg-connectivity --egress --protocol 1 --remote-group sg-connectivity2

Add rules to sg-connectivity2
openstack security group rule create sg-connectivity2 --ingress --dst-port 22:22 --protocol tcp
openstack security group rule create sg-connectivity2 --egress --dst-port 22:22 --protocol tcp
openstack security group rule create sg-connectivity2 --ingress --protocol 1 --remote-group sg-connectivity
openstack security group rule create sg-connectivity2 --egress --protocol 1 --remote-group sg-connectivity

5. CHeck communication within and across the networks.

Observation:
Communication fails across the network.