no - the c67x family doesn't support snmpv3.  not a whole lot of
devices do actually unless there's well a defined need for the
partitioning capability that SNMPv3 provides.  

there were several bugs with the SNMP support in cbos.  i don't know
if these have been resolved in the latest release.  you might want to
consult the errata/release notes for the rev of code you're running

when last we saw our hero (Thursday, Aug 15, 2002), 
 Michael D. Cassano was madly tapping out:
> Hello group,
> 
> I've got two routers in two different locations, one is a Cisco 678
> and one is a Cisco 675.  They both have built in SNMP (of course)
> and I'm trying to track their usage with MRTG on a linux box.  I am
> successfully tracking several boxes but the Cisco routers always
> return zeros for their traffic which I know is inaccurate.  I can
> snmpwalk them just fine, but MRTG can't get their traffic data in.
> Does it have anything to do with SNMPv3?  
> 

-- 
steve ulrich                       sulrich at botwerks.org
PGP: 8D0B 0EE9 E700 A6CF ABA7  AE5F 4FD4 07C9 133B FAFC