Hello, i made a kernel 2.4.21 with HTB support directly compiled in (no module), but "grep -i htb /proc/ksysms" find's nothing. When i try "tc qdisc add dev eth0 root handle 1: htb default 12" i get the error : RTNETLINK answers: Invalid argument I made a second version of this kernel with all possible QoS options and queueing disciplines on/enbaled without success. I get the same error. My system is Debian Woody. I grabed a copy of the tc-binary from luxik.cdi.cz/~devik/ . # QoS and/or fair queueing # CONFIG_NET_SCHED=y CONFIG_NET_SCH_CBQ=y CONFIG_NET_SCH_HTB=y CONFIG_NET_SCH_CSZ=m CONFIG_NET_SCH_PRIO=y CONFIG_NET_SCH_RED=y CONFIG_NET_SCH_SFQ=y CONFIG_NET_SCH_TEQL=y CONFIG_NET_SCH_TBF=y CONFIG_NET_SCH_GRED=y CONFIG_NET_SCH_DSMARK=y CONFIG_NET_SCH_INGRESS=y CONFIG_NET_QOS=y CONFIG_NET_ESTIMATOR=y CONFIG_NET_CLS=y CONFIG_NET_CLS_TCINDEX=y CONFIG_NET_CLS_ROUTE4=y CONFIG_NET_CLS_ROUTE=y CONFIG_NET_CLS_FW=y CONFIG_NET_CLS_U32=y CONFIG_NET_CLS_RSVP=y CONFIG_NET_CLS_RSVP6=y CONFIG_NET_CLS_POLICE=y Does anyone has had the same problem ? Or does anybody know what to do now ? regards Joerg -- Jörg Hartmann Tel: +49 391 40 00 125 J.Hartmann@xxxxxxxxxxxx