"Alexander Dalloz" wrote: >You need to insert a command set into the .spec file which adds >"CONFIG_IPSEC_NAT_TRAVERSAL=y" (or =m; don't know what that is best >here) to all the .config files the kernel src.rpm ships with. ..sorry for my disattention but also with: CONFIG_IPSEC_NAT_TRAVERSAL=y ..I have the following error: CONFIG_IPSEC_NAT_TRAVERSAL make[1]: *** [nonint_oldconfig] Error 1 make: *** [nonint_oldconfig] Error 2 error: Bad exit status from /var/tmp/rpm-tmp.36916 (%prep) RPM build errors: Bad exit status from /var/tmp/rpm-tmp.36916 (%prep) ..however now I try to upgrade kernl with kernel-2.6.12-1.1378_FC3.i686.rpm file. still thanks. Salvatore.