* Peter Humphrey: > $ ping6 vdsl > ping: vdsl: No address associated with hostname
The outcome of ping depends on /etc/resolv.conf and /etc/hosts, and even on the OS of the IPv6 nodes involved. Apple devices will be available as somename.local, with "somename" being what the user configured as the device's name in Preferences->Sharing. I can for example ping my iPhone via "ping6 silver.local". > If I add the LAN address of the Bipac to /etc/hosts, ping finds it > okay, but what if the address changes if the Bipac reboots? Your Bipac will have multiple "LAN addresses", or rather addresses that are bound to the LAN-facing network interface. In your example, you were pinging the global scope address 2a02:x which may change over time, unless your provider assigns static networks (mine does not). However, the router should also have at least one link-local address and one unique local address (ULA): Global scope: 2a02:8010:x (may change or may not) Link local: fe80:y (may change with SLAAC privacy extensions) ULA: fd67:z (should be fixed) With my router, the ULA was set up once when I first picked a random ULA prefix, and has remained immutable since then. > I see my mobile phone has acquired an IPv6 address starting with > fe80::40be... and it doesn't look like its MAC address. That's not actually a bad thing. I mentioned SLAAC privacy extensions (RFC 4941) before; [1] offers some explanations. [1] https://www.internetsociety.org/resources/deploy360/2014/privacy-extensions-for-ipv6-slaac/ -Ralph
