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-rw-r--r--Documentation/networking/ip-sysctl.txt15
1 files changed, 12 insertions, 3 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index c532884..2dc7a1d 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -852,9 +852,18 @@ arp_notify - BOOLEAN
or hardware address changes.
arp_accept - BOOLEAN
- Define behavior when gratuitous arp replies are received:
- 0 - drop gratuitous arp frames
- 1 - accept gratuitous arp frames
+ Define behavior for gratuitous ARP frames who's IP is not
+ already present in the ARP table:
+ 0 - don't create new entries in the ARP table
+ 1 - create new entries in the ARP table
+
+ Both replies and requests type gratuitous arp will trigger the
+ ARP table to be updated, if this setting is on.
+
+ If the ARP table already contains the IP address of the
+ gratuitous arp frame, the arp table will be updated regardless
+ if this setting is on or off.
+
app_solicit - INTEGER
The maximum number of probes to send to the user space ARP daemon
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