DNS-323 SetUp on Singtel 2WIRE Modem Router
Yes. Port 80 and 21 are closed checked using
www.grc.com as recommended by bro here.
Finally manage to get FTP and DDNS up after many trials and errors.(newbie here)
1. set up port 28 under user-defined application in firewall setting page --> solve FTP
2. change to DHCP client instead of fixed ip --> solve DDNS connection
Now I'm able to access ftp from my office computer via ddns address but still testing out for any other problems.
I'm noob to internet security. Some questions seeking for experts advises:
1. Is there any potential external threats when we run this DNS-323, 24/7 for remote access? Can anyone advise/recommend some protection measures? or is the current firewall from the router good enough?
2. Any other free Backup software would you recommend? I dun like the sw that comes with it.

(looking for something like Iomega Automatic Backup Pro, any other nice one)
3. Any other interesting functions we can try on DNS-323 besides Backup, bittorrent, ftp.?
I would like to try on wireless multimedias sharing later.
Thank you.