[cisco-voip] Slightly OT: Ephemeral port range question

[Mike Lay (milay)]

Ed,
 
Everything I have see is 1024 - 65535 in regards to Windows. I can def.
tell you DCOM uses this range.
 
Mike

________________________________

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Ed Leatherman
Sent: Friday, November 02, 2007 8:23 AM
To: Cisco Voip Mailing list
Subject: [cisco-voip] Slightly OT: Ephemeral port range question


Probably a dumb question...

I'm a little confused about the "official" ephemeral port range and
cisco callmanager/related products. i've always ran across at least two
different definitions of this port range, example from wikipedia: 


BSD <http://en.wikipedia.org/wiki/Berkeley_Software_Distribution>  used
ports 1024 through 4999 as ephemeral ports, though it is often desirable
to increase this allocation. 
The IANA
<http://en.wikipedia.org/wiki/Internet_Assigned_Numbers_Authority>
suggests 49152 to 65535 as "dynamic and/or private ports".

The ncFTP page that it lists as a source is even less specific and has
different ranges for different OS platforms. 


Does callmanager use the IANA version, or some larger range for example
for H.245, TFTP, etc?

The port usage document that I have on ccm 4.1 just lists "ephemeral"
for the ports on some of these protocols, and it even has ephemeral in
its glossary but doesn't define what range its using. 

-- 
Ed Leatherman
Senior Voice Engineer
West Virginia University
Telecommunications and Network Operations 
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