Well I finally got interfaced to my router and OMG ! I cannot believe that it provided a total of 119 entities for displaying information about my router. Not that I'm going need anywhere near that.
At the moment I'm showing the following:

CPU's 0-3 temperatures
Memory used
Uptime since last boot
WAN PPPoE Status
OPNsense Integration Updates Available
WAN IN/OUT graphs
LAN IN/OUT graphs


https://github.com/travisghansen/hass-opnsense

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