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From: Daniel Egger <degger@fhm.edu>
To: Lars Knudsen <gandalfit@virgilio.it>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: Bug with netfilter and NFS server on same machine
Date: 24 Nov 2002 15:10:18 +0100	[thread overview]
Message-ID: <1038147021.31189.10.camel@sonja.de.interearth.com> (raw)
In-Reply-To: <3DDFCAEE.7090705@virgilio.it>

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Am Sam, 2002-11-23 um 19.37 schrieb Lars Knudsen:

> The problem is this: A machine running linux 2.4.18 or 2.4.19 works just 
> fine when running just the kernel nfsd. A single client connected to the 
> server with 100Mbit ethernet sees throughput of 5-10MByte/sec even after 
> an hour or two of continous transfers. If the nfs server is also running 
> iptables the throughput is initially the same (5-10MByte/sec) but after 
> a while (200MByte-500MByte total transfer) the client starts reporting 
> "nfs server not responding" followed after a while by "nfs server OK" 
> and of course the transfer rate goes way down (< 1MByte/sec). Using 
> tcpdump on the client seems to indicate that some packets have their 
> headers garbled - wrong fragment ids being the typical error.

Linux nicole 2.4.19-586tsc #1 Sun Oct 6 18:00:21 EST 2002 i586 unknown unknown GNU/Linux

egger@nicole:~$ sudo lsmod
Module                  Size  Used by    Not tainted
ipt_TOS                 1016  12  (autoclean)
ipt_MASQUERADE          1176   1  (autoclean)
ipt_REDIRECT             728   1  (autoclean)
ipt_REJECT              2776   4  (autoclean)
ipt_LOG                 3160   6  (autoclean)
ipt_state                568  55  (autoclean)
iptable_mangle          2100   1  (autoclean)
ip_nat_irc              2288   0  (unused)
ip_nat_ftp              2960   0  (unused)
iptable_nat            13208   3  [ipt_MASQUERADE ipt_REDIRECT ip_nat_irc ip_nat_ftp]
ip_conntrack_irc        2464   0  (unused)
ip_conntrack_ftp        3200   0  (unused)
ip_conntrack           13148   4  [ipt_MASQUERADE ipt_REDIRECT ipt_state ip_nat_irc ip_nat_ftp iptable_nat ip_conntrack_irc ip_conntrack_ftp]
iptable_filter          1672   1  (autoclean)
ip_tables              10488  11  [ipt_TOS ipt_MASQUERADE ipt_REDIRECT ipt_REJECT ipt_LOG ipt_state iptable_mangle iptable_nat iptable_filter]
nfsd                   65616   5  (autoclean)
lockd                  46864   1  (autoclean) [nfsd]
sunrpc                 57436   1  (autoclean) [nfsd lockd]
af_packet              11656   1  (autoclean)

00:12.0 Ethernet controller: D-Link System Inc Sundance Ethernet
        Subsystem: D-Link System Inc Sundance Ethernet
        Flags: bus master, medium devsel, latency 64, IRQ 5
        I/O ports at d800 [size=128]
        Memory at e2810000 (32-bit, non-prefetchable) [size=128]
        Expansion ROM at e1000000 [disabled] [size=64K]
        Capabilities: <available only to root>

No problems with NFS whatsoever. Gigabytes of traffic get from or to
this machine without any lag. The firewall is rather restricted to the
inside and NFS nailed to fixed ports.

-- 
Servus,
       Daniel

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      reply	other threads:[~2002-11-24 14:03 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-11-23 18:37 Lars Knudsen
2002-11-24 14:10 ` Daniel Egger [this message]

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