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From: "boyd, rounin" <boyd@insultant.net>
To: <9fans@cse.psu.edu>
Subject: Re: [9fans] NAT
Date: Tue, 30 Sep 2003 20:52:58 +0200	[thread overview]
Message-ID: <032901c38784$13291c40$b9844051@insultant.net> (raw)
In-Reply-To: <92f848eb1b18661062ea870639204301@caldo.demon.co.uk>

i think it's a terrible idea.  NAT'd UDP really requires state and that's
what TCP is (roughly).  but the port space is too small and with UDP
you have no idea for how long to wait or if the datagram will come back,
so you're open to a denial of service attack (the T's can be on the
inside too).

i've seen DNS's refuse UDP requests, which have been NAT'd,
'cos they don't come from port 53 -- argh ...



  reply	other threads:[~2003-09-30 18:52 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-09-30 18:05 Richard C Bilson
2003-09-30 18:12 ` Brantley Coile
2003-09-30 18:25   ` ynl
2003-09-30 19:44   ` vdharani
2003-09-30 18:36     ` Brantley Coile
2003-09-30 18:39 ` Charles Forsyth
2003-09-30 18:52   ` boyd, rounin [this message]
2003-09-30 19:14 Richard C Bilson
2003-09-30 20:42 ` vdharani
2003-09-30 21:25   ` Lyndon Nerenberg
2003-09-30 22:29     ` Charles Forsyth
2003-09-30 19:47 Richard C Bilson
2003-09-30 20:13 ` boyd, rounin
2008-11-16 15:09 [9fans] Do we have a catalog of 9P servers? sqweek
2008-11-16 15:22 ` [9fans] nat erik quanstrom
2008-11-16 15:54   ` lucio
2008-11-16 15:52     ` erik quanstrom
2008-11-16 16:21       ` lucio
2008-11-18  5:43   ` Sergey Zhilkin
2008-11-16 16:49 erik quanstrom
2008-11-16 17:28 ` Eris Discordia

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