Configure FortiGate A security policies
IPv6 security policies are required to allow traffic between port3 and the IPsec interface toB in each direction. Define the address all6 using the firewall address6 command as ::/0.
config firewall policy6
edit 1
set srcintf port3
set dstintf toB
set srcaddr all6
set dstaddr all6
set action accept
set service ANY
set schedule always
next
edit 2
set srcintf toB
set dstintf port3
set srcaddr all6
set dstaddr all6
set action accept
set service ANY
set schedule always
end