Product: D-Link DIR-605L Firmware Version: v2.13B01
Manufacturer's website information:http://www.dlink.com.cn/
Firmware download address :https://support.dlink.com/resource/SECURITY_ADVISEMENTS/DIR-605L/REVB/DIR-605L_REVB_FIRMWARE_v2.13B01_BETA.zip
There is a hard code password for root in /etc/passwd.
The decrypted password is realtek.