Hi, I tried to install ipsets (http://ipset.netfilter.org/install.html) on my SuSE 10.0 OS. I could apply the kernel patches and rebuild the kernel (Step 1 to 4 on ipsets installation webpage.) But when I tried to build iptables (Step 5,) it showed the error message: /usr/src/linux/include/linux/ipv6.h:19: error: redefinition of `struct in6_pktinfo' In file included from /usr/src/linux/include/linux/netfilter_ipv4.h:11, from /usr/src/linux/include/linux/netfilter_ipv4/ip_tables.h:26, from include/libiptc/libiptc.h:6, from include/iptables.h:5, from extensions/libipt_ah.c:8: /usr/src/linux/include/net/protocol.h:38: warning: `struct sk_buff' declared inside parameter list /usr/src/linux/include/net/protocol.h:38: warning: its scope is only this definition or declaration, which is probably not what you want /usr/src/linux/include/net/protocol.h:39: error: syntax error before "u32" /usr/src/linux/include/net/protocol.h:39: warning: `struct sk_buff' declared inside parameter list /usr/src/linux/include/net/protocol.h:47: warning: `struct sk_buff' declared inside parameter list /usr/src/linux/include/net/protocol.h:52: warning: `struct inet6_skb_parm' declared inside parameter list /usr/src/linux/include/net/protocol.h:52: warning: `struct sk_buff' declared inside parameter list /usr/src/linux/include/net/protocol.h:62: error: field `list' has incomplete type make: *** [extensions/libipt_ah_sh.o] Error 1 I searched on google and found this webpage: http://lists.netfilter.org/pipermail/netfilter/2005-October.txt. It said the kernel source from kernel.org works fine with ipsets, but SuSE's kernel doesn't. If this is true, is there any other way to install ipsets on SuSE 10.0 or 9.3 OS? Thanks for your time. Regards, Hung Lin