-E probe multiplier and -r set the return flow identifier flags

[Ibrahim Coskun]

Hello,

This is Ibrahim Ethem Coskun from University of Nevada, Reno. I'm currently working on a project and we are utilizing from paris-traceroute and modifying it's source code. At some point we needed to set the flow identifier for all probes the same. I mean no matter how many probes I sent to a target, I want the flow identifier for all probes the same (I'm already using hopbyhop algorithm).

My questions are:

1- Is there any flag where you can set the flow identifier to a constant value?

2- what is -E 'probe multiplier' flag doing?

3- what is -r 'set the return flow identifier' flag doing?

Thank you,

[Marc-Olivier Buob]

Hello,

Sorry for this very late answer.

I guess you're talking about the C++ version which is not maintained anymore.

https://code.google.com/p/paris-traceroute/wiki/BackwardCompatibilityCppInput

I believe you should rather look how to patch the new MDA or paris-traceroute implementation provided here :

https://code.google.com/p/paris-traceroute/

If the flow id remains constant, you should discover a single IP path toward the target IP (this is what we call "paris-traceroute").

If you want to discover the lattice from your vantage point to the target IP, you will rather use MDA, which makes vary the flow id to discover every paths with a fixed confidence.

In the new implementation, choosing mda or paris-traceroute is achieved using the -a (or --algorithm) option.

paris-traceroute --help

paris-traceroute -a mda 8.8.8.8

Best regards,

Marc-Olivier

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