Path: blob/main/website/content/en/status/report-2025-10-2025-12/geneve-support.adoc
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=== GENEVE Tunnel Links: + link:https://reviews.freebsd.org/D54172[Add Support for Geneve (RFC8926)] URL: link:https://reviews.freebsd.org/D54172[] Contact: Seyed Pouria Mousavizadeh Tehrani <[email protected]> I have been working on GENEVE tunnel implementation for three months and it is now under review. GENEVE creates a generic network virtualization tunnel interface for tenant systems over an L3 (IP/UDP) underlay, providing Layer 2 (ethernet) or Layer 3 services using the GENEVE protocol. Here is what I have done: * Support for unicast and multicast underlay for both IPv4 and IPv6. * Jail support and per-VNET geneve tunnel. * RXCSUM/TXCSUM/TSO offload capabilities. * Support for inheritance and configuration of ToS, TTL, and DF values. * Support for NETLINK/WITHOUT_NETLINK for if_geneve. * Updated ifconfig to support tunnel creation and modification using NETLINK for if_geneve. * Wrote man page for man:geneve[4] and updated man:ifconfig[8] to include geneve parameters. * Wrote tests. Dependencies and related reviews to support geneve implementation: * Bug fix on netlink dump assignment link:https://reviews.freebsd.org/D54190[D54190] (done) * Bug fix on netlink credential inheritance link:https://reviews.freebsd.org/D54109[54109] (under review) * Update ECN tunneling behavior per RFC6040 (required by GENEVE) link:https://reviews.freebsd.org/D53516[53516] (under review) The review is large because I implemented features that are already available on other platforms before submitting. You can help to speed up the process by reviewing and providing feedback on phabricator.