On Aug 2, 2011, at 10:28 AM, Joel Jaeggli wrote: > > On Aug 2, 2011, at 10:17 AM, Owen DeLong wrote: > >>> >>> en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 >>> ether 60:33:4b:01:75:85 >>> inet6 fe80::6233:4bff:fe01:7585%en1 prefixlen 64 scopeid 0x5 >>> inet 192.168.191.223 netmask 0xffffff00 broadcast 192.168.191.255 >>> inet6 fd92:7065:b8e::6233:4bff:fe01:7585 prefixlen 64 autoconf >>> inet6 2001:470:1f00:820:6233:4bff:fe01:7585 prefixlen 64 autoconf >>> media: autoselect >>> status: active >>> >>> Note the multiple prefixes. IPv6 is not just IPv4 with bigger addresses. >>> If you want to give your printers, etc. stable IPv6 addesses use ULAs. >>> >> >> Icky. >> >> >> Better yet, just subscribe to an ISP that will give you a static prefix. > > Some (probably all) networks need addressing even when they're not attached > to a provider. >
I don't understand why this is a problem if your ISP gives you a static address. There are, of course, other sources of addresses available as well. Nobody has yet presented me a situation where I would prefer to use ULA over GUA. > while link-local is necessary it's also probably not sufficient. > True. Owen
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