Functional limitations of devices
Keenetic routers have certain functional caps that are related to software (at the KeeneticOS operating system level) or hardware specs. Keep these in mind when picking models, setting up your local network and Wi-Fi System.
Number of registered clients: up to 512 (OS version 3.8 and higher).
Number of IP addresses leased via DHCP: up to 250 by default, but this value can be increased to 1250 (use 255.255.248.0 or wider mask).
NAT table size: 32768 sessions (for ARM-based models with 64-bit architecture), 16384 (for higher-end models with 32-bit architecture), 4096 (lower-end models).
Number of user accounts: up to 200 (for higher-end models and ARM-based models) and up to 100 (for all other models).
Username length: up to 64 characters.
Password length: minimum 8 characters and maximum 64 characters.
Number of DNS records: up to 64.
Number of DoT/DoH servers: up to 8.
Number of entries in the Black and White Wi-Fi access lists (in MAC filters, in the web interface in the Wi-Fi Access Control menu): up to 222 (OS v.3.6.1 and higher).
Number of Wi-Fi access points (SSIDs: up to 7 per band (up to OS v.4.1, it was possible to create up to 4 SSIDs). On a dual-band router, you can create up to 14 access points — 7 in the 2.4 GHz band and 7 in the 5 GHz band.
Number of additional segments without Wi-Fi access points: no restrictions.
Number of simultaneously connected Wi-Fi clients: depends on the model; additional information is provided in the article How many Wi-Fi clients can I connect to my router?.
Number of port forwarding rules: there are no software restrictions in the operating system, but at the hardware level, the number of rules is limited by the amount of free memory in the ROM. If there are too many rules, memory overflow may occur, which may cause the device to malfunction.
Number of characters in interface description: up to 256 (ASCII characters).
Maximum number of IP alias entries: up to 250 (OS v. 4.1 and higher; prior to this, the value was up to 8).
Number of HTTP Proxy entries (4th level domains, set up in the web interface in the Access to Web Applications Running on Your Network section): up to 160.
Number of IP address bindings to a domain name via the ip host command: up to 64.
Number of simultaneous PPPoE Pass-Through sessions: up to 16.
Number of lines in a bat file containing static routes: up to 1024.
Number of VPN connections: depends on the model, protocol, and role (client or server) used on the router. For more information, see the article VPN types on your device.
On older router models with up to 32 MB of internal flash memory (Dual Image), it is not possible to install the entire set of KeeneticOS operating system components. This is due to a hardware limitation on the amount of flash memory in which the router's OS is stored. We recommend that you first remove any components you do not use, and then install only those you need. Models with internal flash memory capacity exceeding 32 MB do not have this limitation.
Number of extenders that can be connected to the Mesh Wi-Fi System: there are no restrictions. You can add as many extenders to the Wi-Fi System as you need to expand your Wi-Fi network. In our lab, we test a Wi-Fi System consisting of 25 extenders connected via a wired connection. If you want to set up a Mesh Wi-Fi System by connecting extenders exclusively via Wi-Fi, it is recommended to limit the maximum number of extenders in the network to five, including the Main Router (Wi-Fi System controller).
When using dual-band models of an extender and main router to connect them into a Mesh Wi-Fi System, is it possible to connect the extender in the 2.4 GHz band instead of the 5 GHz band, as is the default? No, this is currently a limitation of the Wi-Fi System design. The connection between dual-band models in a Wi-Fi System is established exclusively in the 5 GHz band. If you need an extender to connect to the main router in the 2.4 GHz band, use a single-band extender model.
Is it possible to install OPKG on a router without a USB port? No, the OPKG package manager can only be used on models with a USB port and support for connecting USB drives.