From: Adam Dunkels <adam@sics.se> Subject: Re: Version Of TCP. Date: Tue, 6 Mar 2001 08:44:36 +0100 Message-Id: <01030608443600.10884@sidewalker.sics.se>
On Tuesday 06 March 2001 00:20, Ivanovich, Milosh wrote:
> Hi,
>
> I have used TCPTrace to analyse data gathered for FTP from Windows NT
> servers down to Windows 98 clients.
>
> In relation to the question on TCP version, I have an ancilliary question.
> Without using a tool like "tbit", is there a way of telling exactly which
> TCP version (and "flavour") the Win NT, Win 98 and RedHat Linux 7.0 boxes I
> am testing use, from some system admin. type config menu? I have full
> rights to all three machines, and am unable to probe back inside a series
> of firewalls to get to them with a tool like "tbit", hence I need an
> alternative method of deducing the TCP versions.
Hi!
In general, there is no way to select the TCP version that should be used by
your operating system(s). The TCP "version" is a combination of the
congestion control and retransmission algorithms that are used. Most newer
operating systems use either TCP Reno or NewReno [RFC2582].
Since you are unable to reach your machines from the outside, it might be
possible to modify tbit so that it can probe the machine on which it is
running (it does not seem possible to do this with the current version, 0.5).
Of course, tbit does not work under MS-DOS so this would only apply to your
Linux box.
/adam
-- Adam Dunkels <adam@sics.se> http://www.sics.se/~adam ---------------------------------------------------------------------------- To unsubscribe, send a message with body containing "unsubscribe tcptrace" to majordomo@tcptrace.org.
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