On lun. 22 mai 14:03:54 2017, William Gathoye wrote: > Btw, if I wanted to use link local addresses to communicate with the > provider next hop gateway, how can I know the local link fe80 IPv6 > address of that gateway since my provider (OVH) doesn't disclose it?
You can try to ping6 the IPv6 multicast address for all the routers on the link: 14:07 alarig@mew ~ % ping6 -c1 ff02::2%vtnet0 PING6(56=40+8+8 bytes) fe80::a800:ff:fe93:83a3%vtnet0 --> ff02::2%vtnet0 16 bytes from fe80::209%vtnet0, icmp_seq=0 hlim=64 time=0.237 ms --- ff02::2%vtnet0 ping6 statistics --- 1 packets transmitted, 1 packets received, 0.0% packet loss round-trip min/avg/max/std-dev = 0.237/0.237/0.237/0.000 ms But, it’s possible that you don’t get any reply if they do some nasty things on their network (as Hetzner does). In that case, you’re stuck on the /56 setup. -- alarig
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