[mrtg] cfgmaker error: No response from remote host

[Chris Henderson]

I have changed a switch and want to run cfgmaker again. But when I run
"cfgmaker --global 'WorkDir: /srv/www/htdocs/mrtg/172.16.20.1"
--global 'Options[_]: growright' --output /etc/mrtg/switch.cfg
--subdirs=HOSTNAME --ifdesc=nr --ifdesc=descr --ifdesc=alias
--ifref=name He at pr@172.16.20.1" I get error "SNMPWALK Problem for
ifDescr on He at pr@172.16.20.1::::::v4only: No response from remote host
'172.16.20.1' at /usr/bin/cfgmaker line 147.

I can use snmpwalk to get information out of the switch - both version
1 and 2 (snmpwalk -v 2c -c He at pr 172.16.20.1 and snmpwalk -v1 -c He at pr
172.16.20.1)

Thanks for any help.