Digi 70002257. Management protocols: SNMP traps, HTTP/HTTPS, SNMPv3, PPP, RIP, Command Line, Port triggers. Authentication method: RADIUS, TACACS+, Secure LDAP, Security algorithms supported: SSH. Console port: RJ-45. Operating system installed: Linux Kernel 2.6. Dimensions (WxDxH): 155 x 203 x 29 mm, Weight: 0.94 kg