UPnP, NATs, and P2P
Bill Cox <[email protected]> Mon, 14 Feb 2005 05:24:08 -0500
| Newsgroups | gmane.network.bit-torrent.general |
|---|---|
| Organization | ViASIC |
| Message-ID | <1108376648.29903.41.camel@swordfish> |
>From what I can tell, enabling UPnP on NAT enabled gateway is not
currently a good idea. There are too many computers with spy-ware and
worse, and allowing those applications to open ports through your fire-
wall is risky.
The problem this causes is that P2P enabled applications like BitTorrent
aren't able to contact peers behind NATs unless the users are computer-
savvy enough to forward a BitTorrent port.
Is this a long-term problem, or is there some solution out there? IPv6
wont do it: we don't use NATs just to save IP address space, we use NATs
for security.
Bill
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