Description of problem:

IPv6 relies on ICMP(v6) then  in order to have IPV6 fully operational, 
ICMP should be enabled.

Echo request for IPV6 has to be authorized by firewall.
When I activate, through Mageia CCM, the firewall for IPv6 (shorewall6) and tick
the Echo request (ping"6") "for IPV6", the following rule is added in ip6tables :

ACCEPT	net	fw	icmp	8	-

... and echo request is not authorized because this rule is for IPV4 (shorewall/iptables instead of shorewall6/ip6tables).
Version-Release number of selected component (if applicable):
libdrakx-net-2.55-1.mga8
file : /lib/libDrakX/network/drakfirewall6.pm

How reproducible:

Permanent.

Steps to Reproduce:
1.Select Echo request (ping) in CCM / firewall for IPV6.Save.
2.Try to contact your machine from outside with a ping6.
3.Result 100% failed

Solution :
To achieve the expected result, the following change is needed in /lib/libDrakX/network/drakfirewall6.pm :

replace :
  {
   name => N_("Echo request (ping)"),
   ports => '8/icmp',
   force_default_selection => 0,
  },
by 
  {
   name => N_("Echo request (ping)"),
   ports => '128/icmp',
   force_default_selection => 0,
  },