path: root/Documentation/networking
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authorShan Wei <shanwei@cn.fujitsu.com>2009-12-02 23:39:04 (GMT)
committerDavid S. Miller <davem@davemloft.net>2009-12-02 23:39:04 (GMT)
commit1f5865e73fb18834f52bd6e1d27bce86ff372089 (patch)
tree8a265f3f2ef76bb757838f6f6abd9a6aaf79a7b6 /Documentation/networking
parent529fab67d78747ddc3a8a2bbd0d1aab1d059439f (diff)
ip: update the description of rp_filter in ip-sysctl.txt
The commit 27fed4175acf81ddd91d9a4ee2fd298981f60295 (ip: fix logic of reverse path filter sysctl) has changed the logic of rp_filter. The document about rp_filter is out of date. Now, setting conf/all/rp_filte with 0 can also enable source validation. Update the document according to the commit. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index fbe427a..5dcc067 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -738,8 +738,8 @@ rp_filter - INTEGER
to prevent IP spoofing from DDos attacks. If using asymmetric routing
or other complicated routing, then loose mode is recommended.
- conf/all/rp_filter must also be set to non-zero to do source validation
- on the interface
+ The max value from conf/{all,interface}/rp_filter is used
+ when doing source validation on the {interface}.
Default value is 0. Note that some distributions enable it
in startup scripts.

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