02 Feb 18 13:56:00, you wrote to me:   
      
    MV>>> Tell us more...   
      
    TK>> I have the sim card installed in a mobile router (Huawei E5577s). It   
    TK>> works as any router, it gets public ipv4 address from isp as well as   
    TK>> the /64 ipv6 prefix which will be delegated to lan clients.   
      
    MV> Cewl... ;-)   
      
    TK>> The public ipv4 address may change few times a day of it may stay   
    TK>> unchanged for a week. Also the /64 prefix changes when ipv4 address   
    TK>> changes.   
      
    MV> Dynamic IPs. I could live with that for a mobile device.   
      
   But hey, this _is_ a portable router with a battery. :)   
      
   Google E5577s-321 for more information.   
      
    MV> Does it have port forwarding/configurable firewall for IPv6?   
      
   I think there's no ipv6 firewall, but a normal ipv4 firewall / portforwarding   
   thing yes.   
      
   'Tommi   
      
   ... he.net certified sage   
   ---   
    * Origin: IPv6 Point at [2001:470:1f15:cb0:2:221:1:1] (2:221/1.1)