How to use /networkDiscovery/arp in API

[Lambik 192]

When accessing

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I can see that there could be arp functionality.

 

Anyone know how to use this?

 

Maybe it is possible to arping a device? That would be nice to monitor mobile devices when connecting the network...

[marecki_0luk1 23]

Here you have working example

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[marecki_0luk1 23]

put in parameter dialog {"body": 0}

[Lambik 192]

put in parameter dialog {"body": 0}

Thank You!!

 

This opens a possibility to check if my phone is online, where I waited a long for!

Nice!

[fi-bar-oh 47]

Interesting little find... not sure how you would obtain the value though using lua?

[Lambik 192]

I'm a rookie in API-string-commands but I trying to find out the URL to get the json data. When found I will post it. Maybe you know a place to find the right answer? 

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[fi-bar-oh 47]

I tried the same thing

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/emoticons/default_smile.png" alt=":)" srcset="https://forum.fibaro.com/uploads/emoticons/[email protected] 2x" width="20" height="20" /> looks like it needs post prior to just obtaining the data?

[Lambik 192]

Maybe something like this?

 

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I try some stuff this week. I let you know.

[marecki_0luk1 23]

try it and see response

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[fi-bar-oh 47]

Maybe something like this?

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I try some stuff this week. I let you know.

No I don't think so they are simple get results... I think this requires post to obtain data then save it somehow then get data from json result?

[Lambik 192]

 

try it and see response

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Okay!! Thanx, I will try this later. Keep your posted.

[Lambik 192]

Here you have working example

It's working! You're the best!!!

 

Thanks!

[marecki_0luk1 23]

I know it is working, I've just made it and checked

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/emoticons/default_smile.png" alt=":)" srcset="https://forum.fibaro.com/uploads/emoticons/[email protected] 2x" width="20" height="20" /> The rest it get json from response and do with data everytthing you want. Make scene to "click" button every X minutes and you have arp checking

[fi-bar-oh 47]

I know it is working, I've just made it and checked

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/emoticons/default_smile.png" alt=":)" srcset="https://forum.fibaro.com/uploads/emoticons/[email protected] 2x" width="20" height="20" /> The rest it get json from response and do with data everytthing you want. Make scene to "click" button every X minutes and you have arp checking

Thank you works great i have managed to get it to fire a global variable based on mac address connectivity and it works very well!

 

Much appreciated...

[fi-bar-oh 47]

Actually the value seems to be a little erratic! Changes constantly even if you are connected or not... assuming network issue from my phone i will investigate further

[petergebruers 1,265]

Actually the value seems to be a little erratic! Changes constantly even if you are connected or not... assuming network issue from my phone i will investigate further

If I check this table at 10 min intervals, the entries change indeed... But I expected that behavior. If this is a standard "arp" implementation, as used on linux or windows, then the entries will time out and disappear from the table, if no data exchange took place between the HC2 and the device, or the device has not done an "arp broadcast" in a certain interval. I'm guessing this timeout would be 5 or 10 minutes, but that's a long shot... Could this explain what you call "erratic behavior"? To have something similar on windows: "arp -a" or on a mac "arp -ax".

This is scene version of the VD code:

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[fi-bar-oh 47]

timeouts as would suggest happen a LOT quicker!

 

i can be sat with a main loop checking if mac address response.match("foo") equals the mac address i want based on standard 3 seconds or even increased to 15 or so it will show connected then switch to not connected on my VD very quickly!

 

I think you are indeed correct it may show Not Connected on timeout? then once the value changes it updates mobile client which then wakes it again and show connected?

 

thank you for your help... this is not going to help regards locating the phone easily on the network using mac address rather than ip

 

you potentially saved me a day of messing about

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[Lambik 192]

Just some code I want to share to monitor arp and online devices behaviour. Copy and paste the code in a Virtual Device 'Main loop' and change it to your needs. Watch the debug-window.

 

I gratefully used the knowledge you shared to write this code. Thank you all!!

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[marecki_0luk1 23]

on Debian i suppose you can check and change ARP default time in file /proc/sys/net/ipv4/neigh/eth0/gc_stale_time

You will need root to your HC2.

[Lambik 192]

on Debian i suppose you can check and change ARP default time in file /proc/sys/net/ipv4/neigh/eth0/gc_stale_time

You will need root to your HC2.

I don't have root access to my HC2. I guess you do. Can you check what the default value is?

[samuel 27]

How to display if device 1, device 2, etc.. is online or offline in an VD?