While long ago I did such a thing on Cisco gear, I found it was my error about tftp. I ended up using a Linux boot and got the job done. I'm not an expert on Linux by any means. Yes I do use it, have developed on Linux for years but one of the nice things is flexibility. It gives me another tool or exit.
In parting many of these switches or routers have support systems. I'd be guessing here but as gear aged and went out on Ebay I see a lot more odd questions like this that would normally be handled by the equipment maker. Not that' is a bad thing but it's something you see today. That is, folk want to use gear that used to mandate support without the support.
I'm using scp to backup flash from a switch to a computer. as tftp doesn't transfer xorrectly. the file is larger and crc32 fails so i opted for scp instead.
I'm trying to copy from a fastiron switch to a raspberry pi 2
Here's what i'm trying
>scp frank@192.168.1.3:flash:primary FGS07202a.bin
frank@192.168.1.3's password:
scp image copy from device's flash accepts only following syntax: scp <username>@<ipaddress>:flash:<primary/secondary> <destination filename>
lost connection
Having checked the log it gives me this.
00 days 00h:35m:25s infomational Security: SSH logout by public key from src IP 192.168.1.67, src MAC b827.eb13.853c
00 days 00h:35m:25s infomational Security: SSH login by public key from src IP 192.168.1.67, src MAC b827.eb13.853c to USER EXEC mode
00 days 00h:32m:55s infomational Security: SSH login by public key from src IP 192.168.1.67, src MAC b827.eb13.853c to PRIVILEGE EXEC mode
00 days 00h:32m:44s infomational Security: SSH login by public key from src IP 192.168.1.67, src MAC b827.eb13.853c to USER EXEC mode
As you can see, it's not an authntication problem. I know the scp isn't standard format but it seems to demand that unusual format.
Has anyone else exnountered this and found a way around it.

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