When you configure the serial ports on IM/CM/SD4000 gateways you first set the protocols and the RS232 parameters that are to be used for the data connection to that port (e.g. baud rate). Then you must select what mode the port is to operate in. Each serial port can be set to support one of five operating modes:
- Console Server mode enables remote network access to the attached devices serial console port
- SDT mode - This Secure Tunneling setting allows SSH port forwarding of RDP, VNC, HTPP, HTTPS, SSH, Telnet and other LAN protocols through to computers which are locally connected to the IM/CM4000 by their serial COM port. This port forwarding requires a PPP link to be set up over this serial port
- Power Device mode sets up the serial port to communicate with an intelligent serial controlled power strip. Refer faq 231
- Terminal Server mode enables agetty and sets the serial port to await an incoming terminal login session. Refer faq 246
- Serial Bridge mode enables the transparent interconnection of two serial port devices over a network Refer faq 254
