Work with virtual interfaces, you will have to set the eNB virtual interfaces up yourself (ifconfig ethx:y ipv4@ up)

small fix for mbmssim (a previous commit enabled XFORMS by default, which was not up to date in mbmssim)

because 'apt-get' may trigger interactive sessions.

Hotfix 71 freq channel

only affects dlsim, which has been tested by Elena

See merge request !12