Description of problem:
Distributed IPv6 installation via packstack fails with unknown 'iptables-ipv6' package:

Copying Puppet modules and manifests                 [ DONE ]
Applying fd00::1b16_prescript.pp
Applying fd00::1b17_prescript.pp
Applying fd00::1b15_prescript.pp
fd00::1b15_prescript.pp:                          [ ERROR ]        
Applying Puppet manifests                         [ ERROR ]

ERROR : Error appeared during Puppet run: fd00::1b15_prescript.pp
Error: Execution of '/usr/bin/yum -d 0 -e 0 -y list iptables-ipv6' returned 1: Error: No matching Packages to list
You will find full trace in log /var/tmp/packstack/20160310-105808-57E5qE/manifests/fd00::1b15_prescript.pp.log


Version-Release number of selected component (if applicable):
[root@test-controller ~]# rpm -qa openstack*
openstack-puppet-modules-8.0.0a0-0.20160304203011.7dc7e93.el7.centos.noarch
openstack-packstack-puppet-7.0.0-0.12.dev1699.g8f54936.el7.noarch
openstack-packstack-7.0.0-0.12.dev1699.g8f54936.el7.noarch


Additional info:
[root@test-controller ~]# cat /var/tmp/packstack/20160310-105808-57E5qE/manifests/fd00::1b15_prescript.pp.log
Notice: Compiled catalog for test-compute.internal in environment production in 0.23 seconds
Warning: The package type's allow_virtual parameter will be changing its default value from false to true in a future release. If you do not want to allow virtual packages, please explicitly set allow_virtual to false.
   (at /usr/share/ruby/vendor_ruby/puppet/type.rb:816:in `set_default')
Error: Execution of '/usr/bin/yum -d 0 -e 0 -y list iptables-ipv6' returned 1: Error: No matching Packages to list
Error: /Stage[main]/Firewall::Linux::Redhat/Package[iptables-ipv6]/ensure: change from absent to present failed: Execution of '/usr/bin/yum -d 0 -e 0 -y list iptables-ipv6' returned 1: Error: No matching Packages to list
Notice: /Stage[main]/Firewall::Linux::Redhat/Service[iptables]: Dependency Package[iptables-ipv6] has failures: true
Warning: /Stage[main]/Firewall::Linux::Redhat/Service[iptables]: Skipping because of failed dependencies
Notice: Finished catalog run in 0.51 seconds
[root@test-controller ~]#