Nortel Contivity 251 VPN Router ADSL Annex A. DSL connection type: ADSL, Downstream data rate: 8 Mbit/s, DSL specification: ITU G.992.1 (G.DMT) Annex A. Switching protocols: Ethernet, Routing protocols: RIP-1, RIP-2, Data link protocols: Ethernet, Fast Ethernet. Security algorithms supported: 3DES, DES, MD5, SHA-1. Certification: FCC Class B, CE, CSA, FCC Part 68. Weight: 0.468 kg