Source port of 1079 (asprovatalk) to destination port 1025 (blackjack) - required for Microsoft Windows networking?

Gurus,

I have a small network of machines all running on the same subnet, running
TCP/IP. There is no and has never been any connection to the Internet or to
other subnets for any of them. I'm starting to analyze TCP/IP traces using
wireshark to get a better fell of the normal kinds of traffic Microsoft
Windows machines send each other. One thing I couldn't figure out was
traffic generated from a source port of 1079 (asprovatalk) on one machine to
destination port 1025 (blackjack) on another. Curious, because these ports
aren't required by Microsoft Windows networking - at least not that I've
ever read about.


--
Spin

On Tue, 07 Oct 2008 10:16:18 -0400, Spin wrote:

> Gurus,
>
> I have a small network of machines all running on the same subnet,
> running TCP/IP. There is no and has never been any connection to the
> Internet or to other subnets for any of them. I'm starting to analyze
> TCP/IP traces using wireshark to get a better fell of the normal kinds
> of traffic Microsoft Windows machines send each other. One thing I
> couldn't figure out was traffic generated from a source port of 1079
> (asprovatalk) on one machine to destination port 1025 (blackjack) on
> another. Curious, because these ports aren't required by Microsoft
> Windows networking - at least not that I've ever read about.

AFAIK port 1025 is used by Windows for some kind of RPC.

M4