Netgate has released TNSR 26.02, a new version of its high-performance software router and VPN concentrator. The update brings improved high availability synchronization, new filtering capabilities for VPN statistics, and over 30 bug fixes and stability enhancements.
TNSR leverages vector packet processing (VPP) and FD.io to deliver routing and VPN performance comparable to traditional ASIC-based hardware routers. The software combines VPP with control plane components from FRR and Strongswan, offering NETCONF and RESTCONF APIs alongside a command-line interface. It is available on Netgate hardware systems and cloud platforms including AWS and Azure.
The 26.02 release introduces automatic state synchronization for VPF high availability configurations using heartbeat packets on existing channels, allowing peers to re-synchronize connection data after restarts without additional configuration. Users who created custom VPF filter rules may need to adjust them to allow the new heartbeat traffic. The update also adds connection type filtering for VPF statistics output, making it easier to troubleshoot NAT configurations and view specific connection types like endpoint-independent or endpoint-dependent NAT.
This version updates VPP to Stable/2510 and DPDK to 25.07, and corrects an issue where dynamic routing prefix list entries could incorrectly use a sequence value of 0. During upgrades, TNSR will automatically renumber affected prefix list entries starting at 1. Netgate provides upgrade instructions and backup guidance in its documentation and offers 24x365 technical support for production deployments.