Hi, the Advanced routing HOWTO says: "Configuration is achieved using 'tc filter police' commands." in section 14.4. However in section 15.2 "Protecting your host from SYN floods" the sample script calls tc filter add. I get the following error when using the sample script:/sbin/tc filter add dev eth0 parent ffff: protocol ip prio 50 handle 1 fw police rate 1kbit burst 40 mtu 9k drop flowid :1 RTNETLINK answers: Invalid argument Here are my kernel settings: CONFIG_NETFILTER=y CONFIG_NETLINK_DEV=m CONFIG_IP_NF_MATCH_MARK=m CONFIG_IP_NF_MANGLE=m CONFIG_IP_NF_TARGET_MARK=m CONFIG_NET_SCHED=y CONFIG_NET_SCH_CBQ=m CONFIG_NET_SCH_CSZ=m CONFIG_NET_SCH_SFQ=m CONFIG_NET_SCH_TBF=m CONFIG_NET_SCH_INGRESS=m CONFIG_NET_QOS=y CONFIG_NET_ESTIMATOR=y Can someone shed a light why the sample script won't work please ? It'd be greatly appreciated. Cheers, Darko