Teltonika TRB255000000, SNMP, TCP, UDP, IPv4, IPv6, ICMP, NTP, DNS, HTTP, HTTPS, FTP, SMTP, SSL v3, TLS, ARP, PPP (planned),..., Pre-shared key, digital certificates, X.509 certificates, 10,100 Mbit/s, IEEE 802.3,IEEE 802.3u, RS-232/485