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Problem with file copy using Solarinds SFTP & SCP Server

I recently received some new ISR4331/K9 Cisco routers. While trying to copy newer IOS code to these devices I experience a copy failure.

%error reading scp:......transfer aborted

Has anyone else experienced this? I can complete the copy using FTP. Also Cisco TAC advised that they completed using another SCP server (not a SolarWinds product).

THoughts or ideas?

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zzmtenny

We have been experiencing this for some time as well. No solutions.

lordwulfen

I have the same issue, it stops the service on my windows 7 32 bit VM.

I did wireshark and the transfer starts off rather quick and then the TCP window updates start happening. the transfers slows to a crawl and then the SCP server resets the TCP connection to the router for some reason.

I am not forcing any modulus ( though I created a key with 4096 ) and even replicated in a lab environment.

The SCP server is from 2013 and i don't see any update on this forum or others this has ever been resolved.

bennettp07

Has anyone found a solution to this problem? Cisco seems to be using larger file sizes these days and my SFTP server is producing the same error.

JustinY

I was having a similar problem managing an ISR4321 that is connected through a VPN tunnel. I was getting a different error "invalid argument" but that could be differences in IOS versions.

After checking the basics on the Orion SCP/SFTP server:

Service is running.
Firewall rule enabled.
Authentication configured or disabled.

I had to configure the source-interface on my router so it would source traffic from a tunneled interface.

conf t
 ip ssh source-interface Loopback0
end

Then I was able to SCP from the router back to the server.