I think I know why: the initial post was made with exec directive which was deprecated and extend was only added in version 384.8 https://www.asuswrt-merlin.net/changelog-382
As 380.69 is a legacy firmware (released way before 384.8) it means no extend support.
Change extend to exec in all the scripts and then run snmpwalk again to get the OIDs (the values of OIDs from my post will not work).
Well, changing extend -> exec helped - at least values can be read by snmpwalk.
Here is a csv-table with added data:
So here are my sensors:
- platform: snmp
host: !secret router_1_ip
port: 161
community: fortress
baseoid: 1.3.6.1.2.1.25.1.8.101.1
name: snmp_router_1_dhcp_leases
accept_errors: true
default_value: 0
value_template: "{{ value | float | round(0) }}"
version: 2c
unit_of_measurement: ' '
scan_interval: 60
- platform: snmp
host: !secret router_1_ip
port: 161
community: fortress
baseoid: 1.3.6.1.2.1.25.1.9.101.1
name: snmp_router_1_connected
accept_errors: true
default_value: 0
value_template: "{{ value | float | round(0) }}"
version: 2c
unit_of_measurement: ' '
scan_interval: 60
- platform: snmp
host: !secret router_1_ip
port: 161
community: fortress
baseoid: 1.3.6.1.2.1.25.1.10.101.1
name: snmp_router_1_24_temp
accept_errors: true
default_value: 0
value_template: "{{ (((value | float) / (2 | float)) + (20 | float)) | round(0) }}"
version: 2c
unit_of_measurement: "\u00b0C"
scan_interval: 60
- platform: snmp
host: !secret router_1_ip
port: 161
community: fortress
baseoid: 1.3.6.1.2.1.25.1.11.101.1
name: snmp_router_1_5_temp
accept_errors: true
default_value: 0
value_template: "{{ (((value | float) / (2 | float)) + (20 | float)) | round(0) }}"
version: 2c
unit_of_measurement: "\u00b0C"
scan_interval: 60
- platform: snmp
host: !secret router_1_ip
port: 161
community: fortress
baseoid: 1.3.6.1.2.1.25.1.12.101.1
name: snmp_router_1_mem_used
accept_errors: true
default_value: 0
value_template: "{% set mem_total = 239524 -%}
{{ ((((value | replace('K','')) | float) / (mem_total | float)) * (100 | float)) | round(0) }}"
version: 2c
unit_of_measurement: '%'
scan_interval: 60
- platform: snmp
host: !secret router_1_ip
port: 161
community: fortress
baseoid: 1.3.6.1.2.1.25.1.13.101.1
name: snmp_router_1_proc_load
accept_errors: true
default_value: 0
version: 2c
value_template: "{{ (100 - ((value | replace('%','')) | float)) | round(2) }}"
unit_of_measurement: '%'
scan_interval: 60
- platform: snmp
host: !secret router_1_ip
port: 161
community: fortress
baseoid: 1.3.6.1.2.1.25.1.15.101.1
name: snmp_router_1_jffs_used
accept_errors: true
default_value: 0
version: 2c
value_template: "{{ ((value | replace('%','')) | float) | round(2) }}"
unit_of_measurement: '%'
scan_interval: 60
Notes:
Thank you very much for the help!
Can someone please explain how can I implement this to the setup Petricia explained above? thanks in advance
Should we be using SNMPv2 or v3?
What are the “SNMP get community” and “set”? Should these two names be different or the same?
I figured out a way to extend Petrica’s implementation to include wan transmit and receive speed using the script in pnakashian’s link. Mbit/s is used to match what the ASUSWRT integration. Warning, this works for me but I’m new to SNMP so please feel free to let me know if I did something wrong.
You’ll need the following 2 scripts which are almost identical except for the last line. There’s probably a more elegant way to do this with just 1 script and passing a variable but I wasn’t sure how to do that when calling the script though SNMP.
NOTE: The scripts will produce errors the first few times as they need to create /tmp/ files. This was also the case with the original script.
download.sh
#!/bin/sh
maxint=4294967295
scriptname=${0##*/}
old="/tmp/$scriptname.data.old"
new="/tmp/$scriptname.data.new"
old_epoch_file="/tmp/$scriptname.epoch.old"
old_epoch=`cat $old_epoch_file`
new_epoch=`date "+%s"`
echo $new_epoch > $old_epoch_file
interval=`expr $new_epoch - $old_epoch` # seconds since last sample
if [ -f $new ]; then
awk -v old=$old -v interval=$interval -v maxint=$maxint '{
getline line < old
bytes = $1 - line
if(bytes < 0) {bytes = bytes + maxint}
mbps = (8 * (bytes) / interval) / 1024 / 1024 # mbits per second
printf "%.2f \n", mbps
}' $new
mv $new $old
fi
cat /proc/net/dev | tail -1 | tr ':|' ' ' | awk '{print $2}' > $new
upload.sh
#!/bin/sh
maxint=4294967295
scriptname=${0##*/}
old="/tmp/$scriptname.data.old"
new="/tmp/$scriptname.data.new"
old_epoch_file="/tmp/$scriptname.epoch.old"
old_epoch=`cat $old_epoch_file`
new_epoch=`date "+%s"`
echo $new_epoch > $old_epoch_file
interval=`expr $new_epoch - $old_epoch` # seconds since last sample
if [ -f $new ]; then
awk -v old=$old -v interval=$interval -v maxint=$maxint '{
getline line < old
bytes = $1 - line
if(bytes < 0) {bytes = bytes + maxint}
mbps = (8 * (bytes) / interval) / 1024 / 1024 # mbits per second
printf "%.2f\n", mbps
}' $new
mv $new $old
fi
cat /proc/net/dev | tail -1 | tr ':|' ' ' | awk '{print $10}' > $new
Add the following to /jffs/configs/snmpd.conf.add
extend .1.3.6.1.2.1.25.1.17 download /bin/sh /jffs/scripts/snmp/download.sh
extend .1.3.6.1.2.1.25.1.18 upload /bin/sh /jffs/scripts/snmp/upload.sh
Lastly, add this to your home assistant config
- platform: snmp
host: my_ip
community: public
baseoid: 1.3.6.1.2.1.25.1.17.3.1.1.8.100.111.119.110.108.111.97.100 # Found via snmpwalk, but looks unusually long
name: bespin_download_speed_negative # Negative value looks better in history graph
accept_errors: true
default_value: 0
version: 2c
value_template: '-{{value | float | round (2)}}'
unit_of_measurement: 'Mbit/s' # Use the same units as the ASUSWRT integration
scan_interval: 15
- platform: snmp
host: my_ip
community: public
baseoid: 1.3.6.1.2.1.25.1.18.3.1.1.6.117.112.108.111.97.100
name: bespin_upload_speed
accept_errors: true
default_value: 0
version: 2c
value_template: '{{value | float | round (2)}}'
unit_of_measurement: 'Mbit/s' # Use the same units as the ASUSWRT integration
scan_interval: 15
This is tested on an ASUS RT-AX86U. If it’s not working on your router then it could be that the order of devices in /proc/net/dev is different.