path: root/networking/
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authorbnewbold <>2013-06-14 12:46:43 -0400
committerbnewbold <>2013-06-14 12:49:24 -0400
commit36543614e1b9d7dfb7f346eac9e883ee5c01e841 (patch)
tree66365ecdd290d65e3db0c91cd36310dd0e72e082 /networking/
parent297e7f772c8bb1d79e159b24a4b3673fc4d90559 (diff)
outgoing ipv6 defaults
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+Sometimes you want to listen on an IPv6 address (out of several), but don't
+want it to be used by default for outgoing connections. One resolution is to be
+very careful about what order the addresses are added (it seems the most recent
+is default). Another is to change an IPv6 address to be "less prefereed" or
+"depcrecated" using the "preferred_lft" flag to the ip command:
+ sudo ip -6 addr change 2600:3c01:e000:001a::1205/64 dev eth0:0 preferred_lft 0
+This can also be specified at 'add' time in /etc/network/interfaces. See here
+for more details, or check RFC 3484: