Exhibit 23.1 CONSENT OF INDEPENDENT AUDITORS We consent to the reference to our firm under the caption "Experts," and to the use or our report dated February 21, 2000 (except for Note 14, as to which the date is April 11, 2000) in the Registration Statement (Form F-1) and related Prospectus of Viryanet Ltd. for the registration of its Ordinary Shares. Tel-Aviv, Israel August 23, 2000 /s/ Kost, Forer and Gabbay KOST, FORER & GABBAY A member of Ernst & Young international