Did you try the command :
./bsc_hack -f <n> -t nanobts1800
with 512 < n < 885
May be you forgot the type of bts in the command line and then it goes in bs11 by default.
 
Eric
2009/8/13 Nordin <bouchtaoui@gmail.com>
Hello guys,

Today I've pulled the latest sources and have issues of executing bsc_hack with config file.
It complains about:
GSM900 channel must be between 1-124.
mi_e1_line_update could not open socket Address family not supported by protocol

But I changed the config file for the nanoBTS1800, is there something missing?