[cisco-voip] IP Precedence and IPSec

Walenta, Phil philip.walenta at berbee.com
Fri Feb 4 18:52:15 EST 2005


By default the prec bits or DSCP will not be copied.  You need to
perform a "qos pre-classify" in your tunnel to allow this to happen. 

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of su1droot
Sent: Friday, February 04, 2005 4:44 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] IP Precedence and IPSec

Hello,
I have a problems that I can't seem to find any documentation either
way on.   We are running voice over a GRE/IPSec tunnel.  I know when a
packet is encapsulated in a GRE tunnel the IP Precedence bits are copied
on to the GRE packet, but I am unable to find any docs that say if the
Precedence bit is copied outside an IPSec packet.  Does anyone know if
it does or does not copy this bit?  I'm guessing it does not.
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