SANGFOR IAM v2.1 User Manual14such as router, optical fiber transceiver, ADSL Modem, etc.Use standard RJ-45 Ethernet cable to connect DMZ interface to the DMZ zone network. Generally,the Web server and Mail server providing services to wide area network (WAN) are placed at theDMZ zone. The IAM device provides secure protection for these servers. Multi-line function of the IAM gateway device allows multiple Internet lines to be connectedin. You can connect the second Internet-access device to the WAN2 interface. When IAM gateway device runs normally, the POWER indicator (in green) will keep onlighting, and the WAN LINK and LAN LINK indicators (in orange) will keep on lighting.The ACT indicators (in green) will flicker if there is data flow. The ALARM indicator willbe lighted only for about one minute due to system loading when the device is starting andthen go out, indicating successful startup of the device. If the ALARM indicator stays lightedduring startup, please switch off the power and restart the device. If it still keeps on lightingand does not go out, please contact us. Please use straight-through cable to connect a WAN interface with the Modem, and crossovercable to connect a WAN interface with the router. Use straight-through cable to connect theLAN interface with the switch, and crossover cable to connect the LAN interface on thedevice with the network interface on the computer. If connections cannot be establishedwhile the corresponding indicator functions normally, please check whether the cables arecorrectly used for connections. The differences between straight-through cable and crossovercable are the wire sequences at both ends are different, as shown in the next figure.
