From: Joseph Brunner (joe@affirmedsystems.com)
Date: Thu Dec 18 2008 - 15:46:19 ARST
We'll, I would still adjust mss as adding ipsec ESP overhead is still going
to come into play.
I would do GRE/IPSEC per say, as it's the standard, where Ip-Ip is not
widely used.
There is never a good reason to send packets out on a wan where packet
overhead is going to be increased during encapsulation/encryption.
The MSS is only set on the TCP connection open, so its not like every packet
gets the MSS changed! Why not do it?
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of john
edward
Sent: Thursday, December 18, 2008 11:34 AM
To: Cisco certification
Subject: IP TCP MSS-ADJUST Question
Hi Gents.
Please Whats the advantage of implementing IP-in-IP tunneling versus GRE
tunneling? Does IP-in-IP eliminate the need to adjust the ip tcp mss-adjust
settings on the routers and also MTU?
I look forward to your responses.
Thanks
John
Blogs and organic groups at http://www.ccie.net
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