> I am currently doing a project on "Satellite IP Network Emulator" > whereby I have to setup a bridge and then through the bridge (emulator), I > need to add satellite link elements (such as longer delay, diff. queue, > higher BER etc. etc.) to the emulator to create a synthetic satellite > environment.
Is this for GEO satellites (constant delay), or for MEO / LEO (delay varying with orbit location, needs orbit estimation)? > Here's the questions and doubts that I have:- > > [1] Is Netfilter suitable for my project? It certainly provides the tools you need: > [2] If yes, please give me some pointers on where and how should i start? > (I am currently trying to digest all the documentations about Netfilter and >iptables.) Have a look at the QUEUE target, i.e. the userlevel queueing component. This lets you pass packets to a userlevel daemon, which can then queue them for some time, and reinject them after the simulated delay. If I remember correctly, there are sample userlevel daemons, which you would then have to adapt to implement your delay logic. best regards Patrick
