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-rw-r--r--Documentation/networking/ip-sysctl.txt10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 2ea4c45cf1c8..2042261408b9 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -584,6 +584,16 @@ tcp_fastopen - INTEGER
See include/net/tcp.h and the code for more details.
+tcp_fwmark_accept - BOOLEAN
+ If set, incoming connections to listening sockets that do not have a
+ socket mark will set the mark of the accepting socket to the fwmark of
+ the incoming SYN packet. This will cause all packets on that connection
+ (starting from the first SYNACK) to be sent with that fwmark. The
+ listening socket's mark is unchanged. Listening sockets that already
+ have a fwmark set via setsockopt(SOL_SOCKET, SO_MARK, ...) are
+ unaffected.
+ Default: 0
+
tcp_syn_retries - INTEGER
Number of times initial SYNs for an active TCP connection attempt
will be retransmitted. Should not be higher than 255. Default value