Re: Fragmented Packets Problem On Virtual PC for MAC(Shared Networking Mode)

From: nicholas (chaiping_at_gmail.com)
Date: 01/29/05


Date: 29 Jan 2005 06:08:29 -0800

I had tried adjusted the MTU in windows, I'm connect my iBook to cable
broadband connection(throught ethernet). The maximum size of packets
can go through ping is 1213. I'm doing ping www.yahoo.com -l 1213 -f,
size above 1213 need to be fragmented. However, no matter how I adjust
the MTU, the fragmented packets cannot able to go through(is not send
out) from the Virtual Machine on Virtual PC under Shared Networking
Mode.

Paul wrote:
> By default, the MTU settings for Windows is 1500.
>
> However, your ISP may be using something smaller if they use a PPPoE
> connection. Take a look at the link below:
>
> http://www.annoyances.org/exec/show/article04-107
>
>
> On 1/28/05 11:19 AM, in article
> 1106925550.578515.305010@c13g2000cwb.googlegroups.com, "nicholas"
> <chaiping@gmail.com> wrote:
>
> > Hi Anyone reliase there is a problem to send out fragmented packets
on
> > Virtual PC for MAC under Shared Networking Mode?
> >
> > I tried to do the following ICMP ping test to www.yahoo.com.
> >
> > Under command prompt:
> >
> > ping www.yahoo.com -> replied.
> >
> > ping www.yahoo.com -l 1210 -> replied
> >
> > ping www.yahoo.com -l 1300 -> Failed, No replied.
> >
> > ping www.yahoo.com -l 1500 -> Failed, No replied.
> >
> > Conclusion, any packets size more than 1210 cannot be send out from
the
> > Virtual machine(Windows XP/2K) on Virtual PC for MAC under shared
> > networking mode.
> >
> > Any solution to this?
> >
> > Thanks a lot.
> >



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