ip: update the description of rp_filter in ip-sysctl.txt

The commit 27fed4175a (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document about rp_filter is out of date.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>
This commit is contained in:
Shan Wei 2009-12-02 15:39:04 -08:00 committed by David S. Miller
parent 529fab67d7
commit 1f5865e73f

View File

@ -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.