Hi,

I'm troubleshooting a very strange problem, where my ssh connection to a few different OpenBSD machines drops suddenly, with the client machine receiving a TCP RST from the server. I've taken tcpdump captures on both sides (in different sessions, so the tcpdump process doesn't die with my shell), and the OpenBSD machine's capture doesn't log the RST it apparently sends.

Now the machines are in a complex network, so it's possible that the packet is being generated spuriously by something else. My question is: is there any way that the OpenBSD kernel could sent a TCP RST that is always missed by tcpdump running on the same machine?

Thanks for any help
- Ian

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Ian Chard, Senior Unix and Network Gorilla | E: ian.ch...@sers.ox.ac.uk
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