Nortel VPN Router 600. Networking standards: IEEE 802.1Q. Routing protocols: RIP-1, RIP-2, Management protocols: SNMP, HTTP, Supported network protocols: PPTP, L2TP, IPSec, L2F. Authentication method: SecurID, RADIUS, PAP, CHAP, X.509, MS-CHAP, LDAP. Internal memory: 128 MB. Certification: RoHS 5/6