snmp config in 1.2b20

Hi,

I have problem configuring SNMP on squid 1.2b20. Here is what I use in my
config:

snmp_port 3401
snmp_do_queueing on
snmp_mib_path /usr/local/squid/etc/mib.txt
snmp_agent_conf view all .1.3.6 included
snmp_agent_conf view squid .1.3.6 included
snmp_agent_conf user squid - all all public
snmp_agent_conf user all all all all squid
snmp_agent_conf community public squid squid
snmp_agent_conf community readwrite all all

My problem is that I can't seem to be able to get cache statistics from
the server. Here's what I got when I use snmpwalk to get statistics from
the cache:

$ snmpwalk -p 3401 proxy3 public
system.sysDescr = OCTET STRING: "1.2.beta20"
system.sysObjectID = Wrong Type (should be OBJECT IDENTIFIER): OCTET STRING: "1.2.beta20"
system.sysUpTime = Timeticks: (8118) 0:01:21
system.sysContact = OCTET STRING: "proxy3.ksc.net.th"

The mib.txt file is from squid-1.2b20 distribution.

Regards,

--
aet