wgengine/magicsock: set Geneve header protocol for WireGuard (#16350)

Otherwise receives interpret as naked WireGuard. Updates tailscale/corp#27502 Signed-off-by: Jordan Whited <jordan@tailscale.com>
2025-06-21 21:14:42 -07:00
parent 61958f531c
commit 0905936c45
2 changed files with 4 additions and 1 deletions
@@ -85,7 +85,8 @@ func (c *RebindingUDPConn) WriteBatchTo(buffs [][]byte, addr epAddr, offset int)
 			var gh packet.GeneveHeader
 			if vniIsSet {
 				gh = packet.GeneveHeader{
-					VNI: addr.vni.get(),
+					Protocol: packet.GeneveProtocolWireGuard,
+					VNI:      addr.vni.get(),
 				}
 			}
 			for _, buf := range buffs {