[lkml]   [2021]   [Nov]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH net-next] ipv6: don't generate link-local addr in random or privacy mode
> Can't 4 be the same as 3? The same netlink message can configure both
> the addr_gen_mode and the token, no?
> It seems to me that the following should work, and would be much simpler.
> 1. Bring the interface down. All addresses are deleted.
> 2. Send a netlink request to set addr_gen_mode RANDOM_LL_TOKEN or
> PRIVACY_LL_TOKEN and set the token.
> 3. Bring the interface up. Autoconf runs. The link-local address is
> generated from the token. An RS is sent. When the RA is received, the
> global address is generated using RFC 7217 or randomly.

Could you simply manually add an ipv6 link local address to the
interface while it is down (ip -6 addr add fe80::..../64 dev X), then
bring the interface up (ip link set dev X up)...
All that would need to happen is the automatic link local generation
would need to be suppressed if there's already a link local ip
configured - which sounds like a good idea anyway, since why have two?
(btw. even a manually added link local ip will get deleted when the
interface gets brought back down)

 \ /
  Last update: 2021-11-17 10:51    [W:0.071 / U:1.244 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site