On 2020-10-27 18:52, Steve Hill wrote:

This solution certainly works (for the IPv4 case), it just feels like there should be a 
better way of saying "answer ARP / neighbour discovery for anything in this whole 
network", rather than having attach each individual IP address to the NIC.

For IPv6 I've got a working setup with a /64 by doing

    sysctl -w net.ipv6.conf.all.proxy_ndp=1     ### this is the trick
    sysctl -w net.ipv6.conf.all.forwarding=1

after assigning a single /128 address to the SIT tunnel interface and the 
entire /64 to eth0.

Best regards.

--
   Roberto Ragusa    mail at robertoragusa.it
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