Hi I've patched net-mrtg http://www.net-snmp.org/ with http://x-ray.prokon.cz/data/snmp/ sucefully Also I've copied QOS.TXT to /usr/local/share/snmp/mibs when I make a normal use of snmp, with mrtg in order to monitor all traffic on eth0 and eth1, it works OK. But, how must I do in order to get monitor for a specific class ? If I make a snmpwalk (like README suggest), I get a error: # snmpwalk -c public 127.0.0.1 enterprises.18756 snmpwalk: No securityName specified I'm lost...!!! Bests andres _______________________________________________ LARTC mailing list / LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/