How to view Active clients on the LAN in OpenWrt?

guilhermetb · August 14, 2020, 4:46pm

Hello, I would like help if possible.

I used DD-WRT for a long time and recently switched to OpenWRT.
How can I activate this feature that I am using as an example of the DD-WRT printscreen (Staus -> LAN -> Active Clients) in OpenWRT?

lleachii · August 14, 2020, 6:20pm

@guilhermetb, welcome to the community!

Have you seen the main Overview page on the OpenWrt web GUI?

guilhermetb · August 14, 2020, 6:38pm

Hi.
192.168.1.1 - TL-WR1043ND v1 - OpenWrt 19.07.3 - XX:XX:XX:XX:7E:86
192.168.1.2 - TL-WA850RE - Repeater tplink - XX-XX-XX-XX-1D-79

mk24 · August 14, 2020, 6:46pm

The first section is the ARP table. This is viewable on the Status->Routes page of OpenWrt. The ARP table has the MAC, IP, and interface of any local machine that has made a layer 3 interaction with the router. Viewing this on the main router will be a pretty complete list of everything on the network.

guilhermetb · August 14, 2020, 11:18pm

Thanks for the answer.
I would like information from only the hosts that are exchanging packets on the network at the moment and not the leases granted by dhcp.

mk24 · August 14, 2020, 11:29pm

That would be ARP. It doesn't care about hostnames or DHCP. It is the kernel's cache of the low-level handshake to find the MAC of a device with a certain IP.

Though stale entries (never resolved: 0:0 MAC or long unused) are supposed to expire out of the ARP table, it may take a very long time.

guilhermetb · August 15, 2020, 2:06am

Sorry, I didn't get it right.

Is there any way to install a package through opkg that gets the information below in real time as in dd-wrt?

vgaetera · August 15, 2020, 3:24am

guilhermetb · August 15, 2020, 5:05am

Thank you all so much for your help, the tips were useful but not what I would like.
I will give an example of the feature that I miss in relation to DD-WRT, in it through the path "Status -> LAN"
What comes closest to this feature in OpenWRT is through the path "Status -> Realtime Graphs -> Traffic -> br-lan"
However in OpenWRT it does not show the ips and hosts that are using the network in real time.
Can I get this feature in OpenWRT?

vgaetera · August 15, 2020, 5:23am

File a feature request / issue here:

lleachii · August 16, 2020, 12:22pm

Press "CONNECTIONS" like @vgaetera noted.

guilhermetb · September 14, 2020, 3:26am

Thanks for your feedback @lleachii , however, in CONNECTIONS there is a large amount of information from different connections from the same host.
I would like to see only 1 entry per ip, for example, and not several equal ips with different source and destination ports.

lleachii · September 14, 2020, 3:34am

So you don't want to actually see connections?

I'll be honest, I don't understand. Perhaps others will read and be able to assist you.

Grommish · September 14, 2020, 4:28am

I believe they are looking for a status page that shows a current (active) list of client machines that are transmitting on the network at any given time.. ARP is pretty static (as was noted) and Connections shows the socket-level connections rather than an overview.

I'm not sure why they'd want this, other than for a high-level snapshot view of network activity without having to dig thru the details?

vgaetera · September 14, 2020, 4:54am

If you want to make a feature request such as grouping connection by source or destination, there's a proper place: