[e2e] Legal fragment sizes
su.jeno at gmail.com
Wed May 17 03:12:25 PDT 2006
Oops, I forgot the units for fragment-offset field and total
length. Yes, whatever you have mentioned should be
On 5/17/06, Jeno Jeno <su.jeno at gmail.com> wrote:
> The fragment-offset field is just 13-bits. So you cannot
> specify a fragment offset of ~64k.
> On 5/16/06, Fernando Gont < fernando at gont.com.ar> wrote:
> > Folks,
> > I was going through the IP specs, and there was a point on which
> > there seems to be some ambiguity (or, well, at least it's not that
> > clear to me). I wonder what your interpretation is.
> > Is the maximum "legal" IP payload defined by "Total_Length -
> > IP_Header" ( i.e., around 65K), or should it be considered to be the
> > maximum payload that can be encapsulated, by using the "trick"
> > described bellow? (i.e., which would then result in a maximum payload
> > size of around 128K)
> > (The "trick" would be to send a ~65K fragment with the MF bit set,
> > followed by a second 65K fragment with an offset of ~65K)
> > Thanks!
> > --
> > Fernando Gont
> > e-mail: fernando at gont.com.ar || fgont at acm.org
> > PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1
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