Downloads LCOS


LCOS, LANCOM Switch OS, LANtools & documentation

The free operating system LCOS (LANCOM Operating System) is the in-house closed-source firmware for the entire core portfolio of products from LANCOM Systems GmbH. This is the right place for information about and free downloads of the latest LCOS version, the LANCOM Switch OS, the latest LANtools, as well as other software and documents.

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LCOS Security Updates now available

As of now LCOS Security Updates for LANCOM routers, gateways, access points, and WLAN controllers are available for download.


The updates fix a security-related vulnerability in the management functionalities.

Potentially affected are all devices running the following firmware versions:


  • LCOS 10.12 REL, SU1, RU2
  • LCOS 10.10 RU2, 10.10.0165 PR, 10.10 RU4
  • LCOS 9.24 RU6, SU7, RU8


This update is recommended for these devices. All other versions are not affected.


LCOS 10.12 - The powerhouse

Numerous new features bring even more performance, security and reliability to your network! The new LCOS version 10.12 is a genuine powerhouse for high-performance site networking.

Feature-Highlights LCOS/LANtools 10.12

  • More performance and security in the VPN thanks to modern encryption methods (AES-GCM) and elliptical Diffie-Hellmann groups (ECDH) for IKEv2
  • Maximum availability in the VPN – thanks to advanced VPN backup mechanisms
  • Maximum failover reliability in the LAN—thanks to the virtual bundling of Ethernet ports (LACP)
  • Smooth IPTV via Wi-Fi—thanks to the optional conversion from multicast to unicast data streams

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Software Lifecycle Management

With LANCOM Systems you have a manufacturer at your side who offers unparalleled investment protection. The lifecycle policies from LANCOM also provide full transparency and reliable planning with regard to the firmware updates and product support for your LANCOM infrastructure.

Click here forSoftware Lifecycle Management

LCOS version overview

Keeping track of our current LCOS versions can sometimes be difficult.


That's why we offer a LCOS version overview with a clear plan of the current software status, a comparison of the different versions, and recommended usage:

Click here for the LCOS version overview

LANCOM's release procedure

Our aim is the optimal preparation of our in-house operating system LCOS and other software, not only for its use in practice, but also to adapt it to the wishes of our customers. This is why we enter into active dialog with our customers even during the development phase as part of our release procedure. Find out more about the LANCOM release procedure


Available now: the new LANCOM Switch OS 3.30 is here!

The new LANCOM Switch OS 3.30 makes switches of the LANCOM GS-23xx series cloud-ready.

Use the LANCOM Switch OS 3.30 now!

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Contact us

You have further questions about this product or want a personal contact?

Your LANCOM Team

Phone: +49 2405 / 49 93 60

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