SNMP V2 Causes Error

[bigwave]

Adding a new target as public:10.90.2.68 causes the following error for each network interface:

2025-04-11 09:06:15: ERROR: Target[10.90.2.68_eth0][_IN_] ' $target->[11]{$mode} c' (warn): Bareword found where operator expected (Missing operator before "c"?) at (eval 35) line 1, near "} c"

As far as I can tell the funtion get_snmp_version() in files/mrtg.sh is not required.

Removing the c in the generated config file and restarting docker solves this.
Target[10.90.2.68_eth0]: \eth0:public@10.90.2.68:161::::2c
Target[10.90.2.68_eth0]: \eth0:public@10.90.2.68:161::::2

[macmenco]

After reading the cfgmaker documentation, I think this line should just use 2 instead of 2c

router[:[prt][:[tmout][:[retr][:[backoff][:vers]]]]]

Of special interest may be the last parameter, vers. If you set this to '2' then your device will be queried with SNMP version 2 requests.

dckr-mrtg/files/mrtg.sh

Line 66 in 48a3687

[[ "$1" -eq "2" || -z "$1" ]] && echo "2c" || echo "$1"