After some days, I found again some strange things with the provided *.ipk.
On freifunk (v1.6.28) it is impossible to install the package from a (our) repository. ("couldnt find file xy")
I have found out, that is works when the keyword "Filenname: xy" ist removed from the control-file.
"ipkg status batmand-adv"
reports an clean install, but
"ipkg files batmand-adv"
reports no filelist...but its is working. Maybe the pakagebuilder should also include the "depends: kmod-tun"-statement in the control-file.
Thanks and sorry for these "nerv-mails"
bye, Bastian.