[nycbug-talk] FreeBSD scp/sftp problems, large files

[Aleksandar Kacanski]

I had similar problem with Linux, but I had NAT to
deal with on the top of Cisco FW.
My issue was not repeating on exact MB boundary like
yours, it would fluctuate in sizes. However I never
made total of 350Mb.
My work-around was to place the data to intermediary
server in DC and push from there. Eventually, I did
bypass NAT and that solved the problem.
/s
 

--- Charles Sprickman <spork at bway.net> wrote:

> Hi all,
> 
> I'm a little stumped by this and thought I'd bring
> it up here before 
> hitting the openssh list...
> 
> I have two FreeBSD boxes, one at a datacenter
> running 4.11 (OpenSSH 3.5p1) 
> and then one at the office running 6.1 (OpenSSH
> 4.2p1).  Both are 
> stock/base-system OpenSSH installs.  The two
> locations are connected by a 
> 10Mb metro-ethernet connection.  No problems going
> from the 4.11 host at 
> the datacenter to another 4.11 host at the office.
> 
> The problem is that going from the 4.11 to the 6.1
> box is that scp or sftp 
> transfers fail consistently at about 8.3MB.  The ssh
> client reports "lost 
> connection" and exits.  Nothing in the logs on
> either machine.  The 4.11 
> box runs ipf, the 6.1 runs pf, and I see no signs of
> this in the firewall 
> logs of either box.  No evidence of problems in
> "netstat -m" on either.
> 
> If I go from the 6.1 box to the 4.11 box (ie: the
> 6.1 is the client), no 
> problems.
> 
> Any ideas where to hunt?  Why 8.3MB to failure?
> 
> Thanks,
> 
> Charles
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Aleksandar (Sasha) Kacanski

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