doc: Add documentation about use_oif_addrs_only

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
This commit is contained in:
Donald Sharp 2021-08-07 08:06:26 -04:00
parent 52e458d922
commit 48dbe48a99

View File

@ -1353,6 +1353,15 @@ Optional sysctl settings
When ndisc_notify is set to 0, no U-NA is sent. When ndisc_notify is set to 0, no U-NA is sent.
When ndisc_notify is set to 1, a U-NA is sent when the interface comes UP. When ndisc_notify is set to 1, a U-NA is sent when the interface comes UP.
Useful sysctl settings
----------------------
.. option:: net.ipv6.conf.all.use_oif_addrs_only=1
When enabled, the candidate source addresses for destinations routed via this interface are
restricted to the set of addresses configured on this interface (RFC 6724 section 4). If
an operator has hundreds of IP addresses per interface this solves the latency problem.
Debugging Debugging
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