Date: Wed, 24 May 2000 13:17:27 -0500 (CDT) From: Mike Silbersack <silby@silby.com> To: Nick Rogness <nick@rapidnet.com> Cc: Steve Shah <sshah@clickarray.com>, Olaf Hoyer <ohoyer@fbwi.fh-wilhelmshaven.de>, freebsd-net@FreeBSD.ORG Subject: Re: BPF vs. promiscuous mode Message-ID: <Pine.BSF.4.21.0005241307280.21535-100000@achilles.silby.com> In-Reply-To: <Pine.BSF.4.05.10005241122320.48936-100000@rapidnet.com>
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On Wed, 24 May 2000, Nick Rogness wrote: > On Wed, 24 May 2000, Mike Silbersack wrote: > > [snip] > > > > Bah! I'm giving you the no fun network administrator badge. NATing might > > help in the short-term, but it also breaks stuff like ICQ/video games/etc, > > I have yet to have problems with FreeBSD's NAT working with ICQ or > games. Which games are you talking about? ICQ starts out ok, but due to their server jumping around the destination port it uses for the udp channel to the client, people behind nat become inaccessable to others and don't see status updates of others after a few minutes of being connected. The tcp ports used for direct connections can be told to be outgoing only by telling ICQ you're behind a firewall, but then two people behind firewalls can't establish direct connections. While you could manually setup specific tcp ports, ICQ still won't allow communication between two firewalled clients (an error on their part, IMHO - they probably didn't consider such setups as common.) I know age of empires won't work through nat whatsoever, and since starcraft uses port 6112 (udp) as source for all packets, I'm under the impression that NAT would quickly get confused if multiple people from behind the same NAT gateway were playing in the same game, or if you wanted to host a game. Don't get me wrong, I love NAT, it's great for home networks and certainly for businesses (where you'd have none of the above traffic), but you're going to just have a large, screaming mass of students if you try it at a school, I suspect. Next on fox: When silby uses too many commas and not enough periods. Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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