From DD-WRT Wiki
It is extremely important to follow the guidelines for your specific router. Please see Installation for more information. Remember to follow the peacock thread first for background , use this page to identify your router model correctly, and use the dd-wrt download search page (DD-WRT Downloads page or secure version) to ensure that you are getting the correct file (or files, as often is required) for the job.
- Belkin F5D7130 v2001 same as F5D7230 except TFTP to IP address 192.168.2.254 within 1 second of power on
- Belkin F5D7230-4 v2xxx and Lower
- Belkin F5D7230-4 v2000,v2000de + Belkin F5D7231-4 v1102,v1003ee, and v1103uk
- Belkin F5D7230-4 v3000
- Belkin F5D8235-4 v2000
Note: My F5D7130 of unknow version has its default IP 192.168.2.225, I loaded DD-WRT micro successfully, later crashed and found this address by NMAP (Quick Scan)