Maximum User for OpenWrt router

[shuvangkar-dhar]

Is there any limitation for the maximum users for an OpenWrt-based router? How many maximum users can obtain if I use OpenWRT x86 high-end chassis with 3.24Ghz CPU and 8GB RAM?

[flygarn12]

If I remember right there was some note in the manual (the original and not OpenWRT user guide) for dnsmasq or the dhcp server to use it for small offices or home under about 1200client.

But that is more of a limit to be able to handle the ip number leases. A normal homerouter will never reach those number of clients.

In practical terms the real limit will be your internet connection capacity divided on how fast every client are supposed to to surf and how fast your hardware can move the data. This will also depend on how effective you have configured your actual network, how many switches you have, is the network divided by VLANs so not everyone gives all data.

[vgaetera]

Maximum number of devices on a wireless network?

It depends, on the hardware and to some extent also driver and firmware. The AP (and that goes down to the wireless hardware) needs to account for each connected client, reserve some (partially on-chip-) RAM for each connected STA and keep track of them (including buffering for power-saving clients), that limits the number of concurrently connected clients way before the theoretical limits. Then you also need to consider the mere availability of airtime slots, especially with older STAs in the m…

Maximum number of connected clients to a access point

The limit you hit will likely be a practical one, not a technical one. Eventually the devices start "talking over" each other causing re-transmits and the throughput to drop faster than you'd like. At some point, the bandwidth and latency get to be too high for your application. I'd guess it's in the dozens of devices somewhere for many applications. Probably a lot more if they aren't passing any data. Is it really a "mesh"? That means that the devices all connect to each other, not having to …

[shuvangkar-dhar]

@flygarn12

In practical terms the real limit will be your internet connection capacity divided on how fast every client are supposed to to surf and how fast

I will use external AP for WiFi not embedded in the OpenWRT platform. I will use it as a gateway router from where the DHCP will be served.

[vgaetera]

In short, the number of clients is virtually unlimited.
Assuming you have enough ports/switches/APs to connect them all.

[trendy]

You probably want to calculate how much memory each connection is consuming. Still this will not say how many users can connect, but how many connections can the users open.