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-rw-r--r--Documentation/networking/ip-sysctl.rst9
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diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst
index 727b25cc7ec4..7fbd060d6047 100644
--- a/Documentation/networking/ip-sysctl.rst
+++ b/Documentation/networking/ip-sysctl.rst
@@ -3127,6 +3127,15 @@ ecn_enable - BOOLEAN
Default: 1
+l3mdev_accept - BOOLEAN
+ Enabling this option allows a "global" bound socket to work
+ across L3 master domains (e.g., VRFs) with packets capable of
+ being received regardless of the L3 domain in which they
+ originated. Only valid when the kernel was compiled with
+ CONFIG_NET_L3_MASTER_DEV.
+
+ Default: 1 (enabled)
+
``/proc/sys/net/core/*``
========================