ZyXEL Communications NAS320 User Manual page 217

Chapter 10 Applications
• Anti-virus to check files you download for computer viruses.
P2P Download and Your Firewall
The anti-virus feature on a firewall probably cannot check P2P downloads for viruses, so use anti-
virus software on your computer to scan the NSA for viruses.
When you download using P2P download, many other P2P download users are also trying to
download the file from you. The firewall slows this down because by default, it only allows traffic
from the Internet in response to a request that originated on the LAN (it lets you get files from the
Internet and blocks those on the Internet from getting files from you).
Figure 96 Firewall Blocking Incoming P2P Download Requests
To speed up P2P download file transfers, configure your firewall's port forwarding to send incoming
TCP port 9090 and UDP port 9089 connections to the NSA. You probably need to use your firewall's
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Media Server User's Guide