Changes between Version 1 and Version 2 of Experimenters/FAQ


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Timestamp:
08/25/14 11:02:00 (10 years ago)
Author:
sedwards@bbn.com
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  • Experimenters/FAQ

    v1 v2  
    2424
    2525When you are designing your experiment only include a raw PC if you absolutely need to. In most cases you can do everything you want with a Virtual Machine (VM). This way you will leave the raw PCs to experimenters that really need them. If you are not sure if a VM is appropriate for your experiment don't hesitate to send an email to geni-users@googlegroups.com.
     26
     27= Turning off Reverse Path Filtering =
     28
     29'''When does this apply?''' You have a multi-homed system (i.e. it has multiple data plane interfaces) which appears to only be able to receive traffic from a given traffic source on one interface.
     30
     31'''What's happening?''' ''Reverse path filtering'' may be enabled.  We most often see this issue on Ubuntu systems because reverse path filtering is enabled by default.
     32
     33'''How to fix it'''
     34On Ubuntu 12.04 run the following command:
     35{{{
     36sudo sysctl -w net.ipv4.conf.all.rp_filter=0
     37}}}
     38