Hi Ludwig, I'm sorry to be extreme hard-headed, but I would have still a short question concerning this IPv6 topic. I commented out this line in /sbin/SuSEfirewall2 : modprobe ip6table_filter ip6table_mangle and the previously mentioned error-message disappeared! But in the same time I tried this command as root from a shell, and immediately got an error-message: khazad-dum # modprobe ip6table_filter ip6table_mangle FATAL: Error inserting ip6table_filter (/lib/modules/2.6.5-7.108-default/kernel/net/ipv6/netfilter/ip6table_fi lter.ko): Unknown symbol in module, or unknown parameter (see dmesg) Interestingly when I cut this command to two pieces, there was no error-message at all: khazad-dum: # modprobe ip6table_filter khazad-dum: # modprobe ip6table_mangle Could it be, that in /sbin/SuSEfirewall2 the line I detailed would be rather put on TWO distinct modprobe lines, or do I miss an important point?! Thanks for your help, Peli