topic Issue with WinSCP Connection to Smart-1: SFTP Packet Size Error in Firewall and Security Management

Issue with WinSCP Connection to Smart-1: SFTP Packet Size Error

IGSSV — Fri, 02 Aug 2024 08:27:26 GMT

Hello Check Point Community,

I am experiencing an issue when trying to connect to my Smart-1 appliance using WinSCP. The following error message is displayed, preventing me from uploading files:

Received too large (1129072974 B) SFTP packet. Max supported packet size is 1024000 B.
The error is typically caused by a message printed from a startup script (like .profile). The message may start with "CLIN".
Cannot initialize SFTP protocol. Is the host running an SFTP server?

Environment Information:

WinSCP Version: 6.3.4
Smart-1 Device: R81.20 VM

Has anyone encountered this problem before? Any suggestions on how to resolve this would be greatly appreciated.

Re: Issue with WinSCP Connection to Smart-1: SFTP Packet Size Error

rrbranco — Mon, 05 Aug 2024 09:06:08 GMT

Check this.

https://support.checkpoint.com/results/sk/sk42178

How to connect with WinSCP to Gaia OS / Gaia Embedded OS / SecurePlatform

Does the user has the correct rights / roles and the expected shell ?

Try also to change winscp protocol from SFTP to SCP .

Re: Issue with WinSCP Connection to Smart-1: SFTP Packet Size Error

IGSSV — Thu, 08 Aug 2024 09:24:14 GMT

Thank you.

Following the best practices outlined in this article allowed me to successfully connect using WinSCP. Your guidance was incredibly helpful.