The ZyXEL Communications Corporation first introduced ZyNOS in 1998.
Web and/or command line interface (CLI) depending on the device. Web access is accomplished by connecting an ethernet cable between a PC and an open port on the device and entering the IP address of the device into the Web browser. An RS-232 serial console port is provided on some devices for CLI access, which is accomplished by using SSH or telnet.
CLI command types
Listed below are the categories that the CLI commands are grouped by.
- System Related Commands
- Exit Command
- Ethernet Related Commands
- WAN Related Commands
- WLAN Related Commands
- IP Related Commands
- PPP Related Commands
- Bridge Related Commands
- RADIUS Related Commands
- 802.1x Related Commands
- Firewall Firewall Related Commands
- Configuration Related Commands
- SMT Related Commands - these commands appear to be menu-driven commands for system, WAN, LAN, IP and WLAN.
- Basic Setting
- Advanced Application
- IP Application
Secunia reports 7 advisories and 6 vulnerabilities on ZyNOS version 3.X. 5 advisories are unpatched. Secunia rates the most severe unpatched advisory as less critical.