Hi dear list, After sometimes to get it work, I have set-up a fixed IP on my ip.access nanoBTS and thought that could be helpful to share the howto/tuto from this experience : The best way for linux user is to use the ipaccess-telnet tool from the git (git clone git://git.osmocom.org/libtelnet.git) rather than BTS installer from ip.access which doesn't easily allow the access to the flags of configuration (i.e. NV attributes) of the nanoBTS. 1/installation of ipaccess-telnet I have installed it on a debian 5.0.9 (linux 2.6.26) after git cloning git://git.osmocom.org/libtelnet.git my autotools versions : autoconf 2.61-8 + automake 1:1.10.1-3 after running into the following autotools build #autoreconf; automake --add-missing; autoreconf; autoconf; automake; ./configure --prefix=/usr/local; make -j 2; make install I ran into that error "ltmain.sh: No such file or directory" and used the following command to fix that config error #libtoolize in the libtelnet directory and I had the ipaccess-telnet tool build/installed 2/use of ipaccess-telnet on the nanoBTS once ipaccess-telnet is installed, one should first allow the telnet on port 3210 on the nanobts using that command #ipaccess-config -n 0x400/0x400 BTS_IP which set the correct mask on the flag enabling the telnet on port 3210. Then I could telnet the nanoBTS on port 3210 w/ the following command #ipaccess-telnet <ip> 3210 once on the CLI interface for the nanoBTS, you can get help w/ (...) db::setnetmask <net mask> Sets nBTS IP Net Mask db::setipaddr <ipaddr> Sets nBTS IP address (...) db::getflags (...) db::setflag <flag> Enables Config Flag db::clearflag <flag> Disables Config Flag (...) Expecting 3 arguments DHCP configuration flags in database: - DHCP enabled: TRUE - static IP Address: TRUE - static IP gateway config: FALSE - static VSI config: FALSE DHCP configuration flags in use: - DHCP enabled: TRUE - static IP Address: TRUE - static IP gateway config: FALSE - static VSI config: FALSE DHCP uptime = 52567 seconds DHCP state: BOUND T1 inactive T2 inactive Lease Timer inactive and the static ip configuration : To set-up the IP address To disable the DHCP client Xavier Carcelle