setting: ################################################### # Enables source route verification net.ipv4.conf.default.rp_filter = 2 # Enable reverse path net.ipv4.conf.all.rp_filter = 2 ################################################### in /etc/sysctl.conf solved the problem! thank you all! -- To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html