LCOS Release Candidate
For secure and future-ready networks
With LCOS 11.00 RC1, you benefit from a major milestone in future-proof network security. Modern post-quantum mechanisms for key exchange prepare IKEv2 VPN connections today for future threats posed by quantum computers, providing additional protection against potential attacks. In addition, you benefit from improved failover reliability in VoIP telephony: Thanks to VRRP support for the Voice Call Manager, the R&S®LANCOM SD-WAN VoIP gateways now also enable redundancy configurations for high-availability telephony.
Error-free software needs users who put it to the test. We cordially invite you to actively participate in our software development: Feel free to download the LCOS Release Candidate from our download portal and tell us about your experiences with it!
You can best share your feedback on the LCOS Release Candidate with us via the support portal. This portal is available to you as a R&S Networks and Cybersecurity partner or as an end customer with a R&S®NC Support contract. We look forward to receiving your feedback.
Please note: A Release Candidate has been extensively tested by R&S Networks and Cybersecurity and includes new LCOS features. It is suitable for testing and is not recommended for use in productive environments.
Future-proof VPN encryption with post-quantum cryptography
With this update, IKEv2 VPN connections can already be prepared for future threats posed by powerful quantum computers. To achieve this, LCOS uses modern post-quantum mechanisms for key exchange. Traditional encryption methods can be combined with the quantum-resistant ML-KEM algorithm. This creates a hybrid approach that combines established security mechanisms with additional protection for the future. The ML-KEM groups DH35, DH36, and DH37 are available.
VRRP for high-availability VoIP environments
To improve failover reliability in telephony infrastructures, the Voice Call Manager in R&S®LANCOM SD-WAN VoIP gateways can now also be operated redundantly using VRRP (Virtual Router Redundancy Protocol). Multiple physical R&S®LANCOM SD-WAN VoIP gateways act as a single virtual gateway, allowing a standby device to take over network communication if the active device fails. For this purpose, the Voice Call Manager is specifically bound to the corresponding virtual network. SIP endpoints register using the gateway's virtual IP address and can re-register with the new master device after a failover. This ensures that telephony functions are quickly restored even in the event of a failure.
Before any LCOS update, be sure to backup your current device configuration. Devices featuring the "Firmsafe" function have the option of an initial "test mode" firmware upload. The new firmware is activated permanently only if the device has been accessed with a log-in or for configuration purposes before the pre-set time period has expired. Otherwise, the device switches back to its former version.
Tell us about your experience with the release candidate!
You can best share your feedback on the LCOS Release Candidate with us via the support portal. This portal is available to you as a R&S Networks and Cybersecurity partner or as an end customer with a R&S®NC Support contract. We look forward to receiving your feedback.
