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Re: kern/25702 (ftp transfer from client panics 2.0 NAT router)
Martin Husemann wrote:
On Thu, Jan 24, 2008 at 10:37:31AM +1100, matthew green wrote:
i was able to fetch this file from behind a netbsd/sparc64
4.0_BETA2 system from a netbsd/i386 client.
I am still unable to fetch it with a router running 4.0/sparc64.
Maybe it's not the machine, but the mtu or something?
Having looked at some tcpdump data, it would appear that either:
(a) the packet is being truncated and the TCP header length is
not being fixed or;
(b) the TCP header length is being incorrectly set.
The problematic packets are coming from the host being connected
to (la.causeuse.org) and are not coming from your host. Who is
at fault here, I'm not sure yet...if you could run tcpdump on
the physical NIC that you're running pppoe0 on top of, that
might help some (i.e are the packets bad before they arrive at
NetBSD or does something go wrong, somewhere?)
What does "ipfstat -s | grep bad" show you?
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