Do you have Any problem in NS3 installation, do the below easy steps,
Open Terminal & login as superuser
hg clone http://code.nsnam.org/ns-3-allinone cd ns-3-allinone ./download.py
You should then have the following directory structure in ns-3-allinone/
build.py* dist.py* ns-3-dev/ pybindgen/ util.py constants.py download.py* nsc/ README
If you start using these development trees a lot, you should consider learning more about mercurial and looking mercurial page.
BUILDING
Once users have downloaded ns-3 (a developement or stable version), they will want to then invoke build.py to start a coordinated build.
./build.py
If all goes well, one can cd into ns-3-dev and run the ns-3 tests:
cd ns-3-dev ./waf check
