[PATCH] tcp-window-tracking patch with sysctl support

Brad Chapman kakadu_croc@yahoo.com
Wed, 3 Oct 2001 12:19:22 -0700 (PDT)


Mr. Kadlecsik,

--- Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> wrote:
> Hello,
> 
> This is the new version of my tcp-window-tracking patch. The modifications
> are:
> 
> - the default timeout value for the CLOSE_WAIT state is raised to 12 hours
> - sysctl support added (/proc/sys/net/ipv4/netfilter/), which means:
> 	- all conntrack timeout values can be adjusted via sysctl
> 	- logging of out of window packets and packets with invalid
> 	  window scale value can be disabled/enabled via sysctl
> 	- a new flag ip_ct_tcp_be_liberal added. With it, one can
> 	  almost completely disable the window tracking code.
> 	  If ip_ct_tcp_be_liberal is set to 0, all out of window
> 	  packets are marked as INVALID, while if it's set to 1,
> 	  out of window RST segments are marked as INVALID only.
> - logging of out of window packets are made more verbose
> 
> Regards,
> Jozsef

	Does this patch remove the problem which caused the excessive 
"Out of window" error messages that a lot of netfilter users have reported for
the past few months?

Thanks,

Brad



=====
Brad Chapman

Permanent e-mail: kakadu_croc@yahoo.com
Current e-mail: kakadu@adelphia.net
Alternate e-mail: kakadu@netscape.net

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