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fragmatiation with port-forwarding
- To: Linux-IL mailing list <linux-il(at-nospam)linux.org.il>
- Subject: fragmatiation with port-forwarding
- From: Tzafrir Cohen <tzafrir(at-nospam)technion.ac.il>
- Date: Tue, 28 Aug 2001 10:47:57 +0300 (IDT)
- Delivered-To: linux.org.il-linux-il@linux.org.il
- Sender: linux-il-bounce(at-nospam)cs.huji.ac.il
Hi
I have a web server that has recently moved to serve as port-forwarded
beond an ipchins linux box.
I suddenly noticed frgamation problems: pages from the server don't load
if I get them fast enough. reducing the MTU to 1494 seems to solve the
problem (and setting it back to 1500 reproduces it).
While I'll probably leave those MTU settings to prevent unnecessary
fragamantation, I can't exactly figure out how exactly the web server is
supposed to get the Fragment packets.
I can't find any trace to dropped unlogged ICMP packets on the linux box
or the web server (and I'm pretty sure I currently log them all)
Is there an explicit rule I need to add to forward the relevant ICMP
packets to a port-forwarded connection?
(It worked before the server was inside the NAT network, so I currently
suspect my own settings.)
Thanks
--
Tzafrir Cohen
mailto:tzafrir@technion.ac.il
http://www.technion.ac.il/~tzafrir
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