This document presents extensions to Version 1 of RSVP. These extensions permit support of individual data flows using RFC 1826@ IP Authentication Header (AH) or RFC 1827@ IP Encapsulating Security Payload (ESP). RSVP Version 1 as currently specified can support the IPSEC protocols@ but only on a per address@ per protocol basis not on a per flow basis. The presented extensions can be used with both IPv4 and IPv6.