[c-nsp] Improve VPN performance by reducing MTU via DHCP?

[Ted Mittelstaedt]

I don't think windows clients pay attention to the mtu size
option from dhcp.

ethernet is 1500 bytes so unless your running token ring, your
workstations won't generate larger then 1500 byte packets anyway.

There are a lot of things you can do that in theory will work
but in practice do not.  Playing around with MTU size, in my
experience, is one of these things.

Ted

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net]On Behalf Of Vincent De Keyzer
> Sent: Thursday, June 07, 2007 7:27 AM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] Improve VPN performance by reducing MTU via DHCP?
>
>
> Hello list,
>
>
>
> our company is about to build a corporate European network over
> VPNs, and a
> colleague of mine read somewhere that VPN performance can be improved by
> changing the MTU of workstations (this seems to be an option of DHCP
> server). In this way, the encapsulated packets are not bigger than 1500
> bytes, and no fragmentation is required, hence improving performance.
>
>
>
> Does that sound good to you? Anybody ever tried this? Can you think of any
> side effect of changing the MTU of all PCs?
>
>
>
> Vincent
>
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