ipv4: add option to drop unicast encapsulated in L2 multicast

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / Documentation / networking / ip-sysctl.txt

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 99d2164180613804ecc3e210879ff96760636e16..ce81223e8e78ccfbdf864ac810a0f1b7afb8c5ab 100644 (file)
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1038,7 +1038,12 @@ disable_policy - BOOLEAN
 disable_xfrm - BOOLEAN
        Disable IPSEC encryption on this interface, whatever the policy
 
-
+drop_unicast_in_l2_multicast - BOOLEAN
+       Drop any unicast IP packets that are received in link-layer
+       multicast (or broadcast) frames.
+       This behavior (for multicast) is actually a SHOULD in RFC
+       1122, but is disabled by default for compatibility reasons.
+       Default: off (0)
 
 tag - INTEGER
        Allows you to write a number, which can be used as required.