Tait Cyrus (email@example.com)
15 Apr 88 17:15:33 GMT
I have been comparing the lengths of packets specified in IP headers
against actual packet lengths. What I am seeing, ignoring IP packets
smaller than the minimum packet size, is that a fair number of machines
send out packets that are 1-3 bytes longer than is specified by the
IP length. Although this does not hurt anything, I am wondering
why this is. Is it because some machines short/long/quad align the
end of the packet before sending?
Also, this phenomenon appears to be protocol dependent. For example,
I saw several 4.3 machines doing this when sending out timed packets
and routed packet, but not with other packets. I've seen our IP/TCP
Imagen sending out UDP packets doing this.
Although this does not hurt anything, I am just curious as to the reason
-- @__________@ W. Tait Cyrus (505) 277-0806 /| /| University of New Mexico / | / | Dept of Electrical & Computer Engineering @__|_______@ | Parallel Processing Research Group (PPRG) | | | | UNM/LANL Hypercube Project | | hc | | Albuquerque, New Mexico 87131 | @.......|..@ | / | / e-mail: @/_________@/ firstname.lastname@example.org
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