----- Original Message -----
From: "Rogier R. Mulhuijzen" <[EMAIL PROTECTED]>
To: "Marcel de Vries" <[EMAIL PROTECTED]>; "Leif Neland" <[EMAIL PROTECTED]>;
<[EMAIL PROTECTED]>
Sent: Sunday, March 10, 2002 9:35 PM
Subject: Re: Changing MTU via dhcp (OT: how to see it in windows)
> With windows this would be a bit dodgy though. Even if it is stored in the
> registry, I doubt it reflects runtime values. And thus you still don't know
> whether or not the MTU setting is accepted from the DHCP server.
>
> I would suggest using tcpdump or some other sniffing tool to see how large
> the packets on the wire are.
>
Windows ping can set the "don't fragment" bit, and then determine the mtu that way by
trial and error / binary search.
fpsd ping doesn't have that option. However, if I ping the win-box with packets of
10000 bytes, I see the ping gets fragmented in pieces of 1480. So it appears that
win98 doesn't obey the mtu size dhcp sets. Damn...
Leif
R{.n+zwfj)mfhkyR+a{.n+盱)w* z
