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Re: Changing the MTU

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Re: Changing the MTU

Subject: Re: Changing the MTU
From: Peter Sichel <email@hidden>
Date: Mon, 14 Oct 2002 12:12:56 -0400

At 1:02 PM +0100 10/14/02, <email@hidden> wrote:

Hi,

Does anyone know how to change some the settings associated with TCP/IP
networking. e.g. MTU, receive windows size etc. on OS8.6-9x and OSX.

I do remember seeming these, but I cannot remember where seeing them.

Thanks

Mark.

Check out IPNetTuner for Mac OS 9 and Mac OS X from my website
<http://www.sustworks.com>.

To do this programmatically under Mac OS 9:

You can use Mentat's Named Dispatch mechanism for most parameters.
See Quinn's Dump ARP Cache sample code.

You can use the SIOCSIFMTU ioctl to set interface MTU.

and for Mac OS X:

Use sysctl and the SIOCSIFMTU ioctl.
You also need root privileges.

Kind Regards,

- Peter
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	>Changing the MTU (From: <email@hidden>)

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