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Re: Enabling SLAAC for IPv6 by default
On 25/09/2018 18:07, Andy Ruhl wrote:
Sorry for the possible hijack.
Can someone educate me or point me to documentation on how NetBSD (or
possibly anything else) uses these various IPv6 addresses from
I play with IPv6 a little. I set up ipsec between 2 machines using
their SLAAC address which stayed stable. If I set up some other
listener I probably would want to use that address as well, or some
other permanent address.
But if I want to, say, browse the internet from one of those machines,
I think I want the outbound connection to be initiated from a
How does the OS decide?
I've not checked extensively, but each time a new outbound connection is
made without specifying an address to send from, the OS will select the
newest address with the longest matching prefix for the destination.
The only way to affect this is to set net.inet6.ip6.prefer_tempaddr = 1
where it will always try to use a temporary address.
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