Re: TCP version on the default installation of Debian
On Tue, 6 May 2003, Indika Piyasena wrote:
> Hello,
>
> I?ve been doing some TCP traces (using tcptrace) and noticed that SACKS
> (Selective Acknowledgments) are being sent. I want to confirm that the
> TCP version that I?m running is TCP-SACK. How do I check what version of
> TCP is running?
>
> I?ve done a typical installation of Debian. I?m not sure what the
> version number is, but I obtained it from a mirror ending with:
> distributions/debian testing main non-free contrib
>
> I have not installed any other versions of TCP and I'm running the
> 2.4.19 kernel. What version of TCP is shipped with Debian?
>
TCP is part of the Linux kernel. The version of kernel you're running
defines the version of TCP that you are using. I did a moment's search on
TCP SACK in Linux and found that this capability was added in the 2.4
kernel.
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