I have found that in SUSE Linux Professional 9.1 and 9.2, the powertweak settings are missing an important feature of at least the 2.6 kernels: /proc/sys/net/ipv4/conf/*/arp_filter. When my noteboook is plugged into the ethernet LAN and well as connected to the WLAN, the wireless AP/router/bridge cannot discern properly between the two interfaces, since without arp_filter activated the Linux kernel responds on all physical interfaces to requests for all logical IPV4 interfaces. This confuses the AP, undermining it's firewalling, for instance. As a result, the MAC-addressed based DHCP IP number assigments don't work, but instead IP addresses from the dynamic address pool are used. It would be trivial for me, or any so inclined SUSE developer, to add this setting to the powertweak package. I am just desparing over how to push such a fix into the main distro, and optimally, distribute it as a security fix (which in cases like mine it really is). Any takers? -Dirk