Turns out I need the latest and greatest version of msf on my ubuntu portable for work, so I've been following the instructions on their site which (I have to say so far) are pretty good. In compiling lorcon, however, I noted a couple of warnings that I cannot quite interpret and am hoping someone here can help with - checking for linux/if_arp.h usability... no checking for linux/if_arp.h presence... yes configure: WARNING: linux/if_arp.h: present but cannot be compiled configure: WARNING: linux/if_arp.h: check for missing prerequisite headers? configure: WARNING: linux/if_arp.h: see the Autoconf documentation configure: WARNING: linux/if_arp.h: section "Present But Cannot Be Compiled" configure: WARNING: linux/if_arp.h: proceeding with the preprocessor's result configure: WARNING: linux/if_arp.h: in the future, the compiler will take precedence checking for linux/if_arp.h... yes checking for linux/wireless.h usability... no checking for linux/wireless.h presence... yes configure: WARNING: linux/wireless.h: present but cannot be compiled configure: WARNING: linux/wireless.h: check for missing prerequisite headers? configure: WARNING: linux/wireless.h: see the Autoconf documentation configure: WARNING: linux/wireless.h: section "Present But Cannot Be Compiled" configure: WARNING: linux/wireless.h: proceeding with the preprocessor's result configure: WARNING: linux/wireless.h: in the future, the compiler will take precedence checking for linux/wireless.h... yes configure: WARNING: Missing libnl netlink library will not be able to control mac80211 vaps no libnl/libnl doesn't have mac80211 support I did check for these header files and they are on the system under /usr/src/linux-headers-2.6.32-25/include/linux/ (as well as under the 25-generic subdir) Am I missing something else? Thanks, as always for the input. Jack