REPLY: 2:5015/46 60d9e7b1   
   MSGID: 2:5005/49 60db3175   
   CHRS: CP866 2   
   TZUTC: 0700   
   TID: hpt/fbsd 1.9.0-cur 2019-12-05   
   Dear Nil,   
      
   28 Jun 21 18:15, you wrote to me:   
      
    VS>> What if I had two IPv6-capable ISPs for my home, and a /64 or a   
    VS>> /56 from each of them? Is it possible to setup a backup link this   
    VS>> way?   
    NA> [...skip...]   
    VS>> Can anyone enlighten me?   
      
    NA> I don't see how iPv6 differs from IPv4 in this regard.   
      
   I'll clarify. In the case of IPv4, a LAN device has exactly one private IP   
   address and one default route, the failover is done in the router, the devices   
   are not aware of ISP failure.   
      
   In the case of IPv6, all LAN devices have at least two global addresses (from   
   ISP1 block and from ISP2 block), so they must decide for themselves what   
   outgoing address to choose.   
      
    NA> Is it like you   
    NA> have multiple A DNS records vs multiple AAAA records to point to your   
    NA> node host name?   
      
   I did not say a word about DNS. I'm speaking about outgoing traffic on Layer 3.   
      
   Victor Sudakov, VAS4-RIPE, VAS47-RIPN   
   --- GoldED+/BSD 1.1.5-b20170303-b20170303   
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