Documentation: networking: explain what happens if temp_valid_lft is too small

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20231024212312.299370-4-alexhenrie24@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst
index e7ec9026e5db0d0087095105016f78ef2fae3d65..6134ff4561e8f4c1fcc69edcc61a9537182b390b 100644 (file)
--- a/Documentation/networking/ip-sysctl.rst
+++ b/Documentation/networking/ip-sysctl.rst
@@ -2502,7 +2502,9 @@ use_tempaddr - INTEGER
                * -1 (for point-to-point devices and loopback devices)
 
 temp_valid_lft - INTEGER
-       valid lifetime (in seconds) for temporary addresses.
+       valid lifetime (in seconds) for temporary addresses. If less than the
+       minimum required lifetime (typically 5 seconds), temporary addresses
+       will not be created.
 
        Default: 172800 (2 days)