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

Steve stevewa206 at gmail.com
Sat May 3 15:51:49 PDT 2014


Well..there are tools.... But there not free!   At work, we look at all
that stuff continuously.  Takes up a bit of space too for history so you
can do queries.  Not sure if there are any free ones. It's quite a sniff.

Steve N0FPF

On Saturday, May 3, 2014, Kenny Richards <richark at gmail.com> wrote:

> I was surprised there wasn't something already out there that did this,
> but in my 10 minutes of google searching I couldn't find anything. What I
> did find was the building blocks for making a tool for Bart's IP protocol
> stress test. (BIPPST)  Someone already built the tool (
> http://nemesis.sourceforge.net/ ) to build various kinds of packets from
> a script, so you would just need to build the receiving in. This is the
> tool for generation I found, I'm sure there are lots over versions of this
> for security work floating around.
>
> For what it is worth, I also noticed a series of outages last night with
> my Comcast business line. Started just after midnight and ended around
> 02:30 this morning. I wonder if this was a more general network maintenance
> event and not something specific.
>
> Thanks
> Kenny
>
>
> On Sat, May 3, 2014 at 10:33 AM, Bart Kus <me at bartk.us<javascript:_e(%7B%7D,'cvml','me at bartk.us');>
> > wrote:
>
>> 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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>>
>
>
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