[HamWAN PSDR] Request for Software - IP Protocol Filtering Measurement

[Rob Salsgiver]

Don't think these do it exactly as you indicated, but they might get you to
the ultimate goal of testing a flaky connection....

./paping
./hping  or  ./hping3

Rob

-----Original Message-----
From: PSDR [mailto:psdr-bounces at hamwan.org] On Behalf Of Bart Kus
Sent: Saturday, May 03, 2014 10:34 AM
To: Puget Sound Data Ring
Subject: [HamWAN PSDR] Request for Software - IP Protocol Filtering
Measurement

Hi,

During some cell site work last night, I seem to have experienced Comcast
dropping packets from point A to point B simply based on the fact that their
IP protocol was GRE (IP protocol 47).  I also found some posts on the
Internet that claim Comcast wishes to charge more money to transport GRE
packets.  I'm not sure if this is true, or if I made a mistake somehow in my
traffic handling.  Therefore...

Would someone be willing to create software instruments to measure this
claim in general?  I'd like to see a transmitter and a receiver piece of
software that can run on Linux to generate and record a sweep of IP packets
carrying all possible protocol numbers (0-255). The protocol payloads
themselves don't need to be well-formatted, just the protocol number in the
IP header needs to be set.  Your software will be considered successful if
it measures 100% of all protocols as available over an unfiltered (eg: LAN)
link.

The results of such a measurement would be useful in gauging the ISP quality
of any given carrier.  It seems we're moving closer to Selective Protocol
Service Providers (SPSP) and away from true Internet Service Providers (ISP)
if this GRE finding turns out to be right.

--Bart


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