const golang.org/x/sys/unix.IFLA_VXLAN_LOCALBYPASS

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L1795: 	IFLA_VXLAN_LOCALBYPASS                     = 0x1f

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)