different values on remote and local snmpwalk

[modules]

Hello,

I am running snmpd on a debian machine. If i do a local snmpwalk on ifOutOctets
i got the right values. If i do the same from a remote machine, the
value for ifOutOctets
ist empty.

Local walk:
$ snmpwalk -Os -c publica -v 1 192.168.0.5 | grep Oc
ifInOctets.1 = Counter32: 802467492
ifInOctets.2 = Counter32: 362656
ifInOctets.3 = Counter32: 0
ifOutOctets.1 = Counter32: 11331569552
ifOutOctets.2 = Counter32: 364406
ifOutOctets.3 = Counter32: 0
hrSWRunParameters.24074 = STRING: "Oc"

Remote walk:
$ snmpwalk -Os -c publica -v 1 192.168.0.5 | grep Oc
ifInOctets.1 = Counter32: 802401967
ifInOctets.2 = Counter32: 353255
ifInOctets.3 = Counter32: 0
ifOutOctets.1 = Counter32: 0
ifOutOctets.2 = Counter32: 353255
ifOutOctets.3 = Counter32: 0

The relevant part (i think) of my snmpd.conf looks
like this:

agentaddress udp:192.168.0.5:161
com2sec readonly 192.168.0.0/24 publica

Maybe its a problem with permissions or something,
can somebody give a hint?

Regards, Tobias.