[issue32572] Add the ftplib option, overrides the IP address.
New submission from Hideyuki : Add the ftplib's option, overrides the IP address to be used with the PORT command. Currently, the PORT command is sending its self IP address. If the host is connected with NAT, it will not work. If that command has a NAT external IP address, it is working. So add an option to overrides the IP address sending with the PORT command. This is useful when active FTP transfer needed on a 1:1 NAT connected host so like AWS VPC. -- components: Library (Lib) messages: 310102 nosy: hideyuki priority: normal severity: normal status: open title: Add the ftplib option, overrides the IP address. type: enhancement versions: Python 3.6, Python 3.7, Python 3.8 ___ Python tracker <https://bugs.python.org/issue32572> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue32572] Add the ftplib option, overrides the IP address.
Change by Hideyuki : -- keywords: +patch pull_requests: +5061 stage: -> patch review ___ Python tracker <https://bugs.python.org/issue32572> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue32572] Add the ftplib option, overrides the IP address.
Hideyuki added the comment: I understand that it is best to use PASV. But this FTP server is managed by another person, and that server required active mode. Also, my host is in a VPC environment, it is connected by 1:1 NAT. This NAT BOX does not support FTP transparent. In this case, we recognize that IP packet received by the FTP server is from the external IP address of the NAT BOX, but ftplib will send the IP address on host NIC. So dose not match IP packet source address and PORT address, it will be closed with the indicated code. The purpose of this feature is to communicate by overriding the IP address sending by PORT command with the NAT external IP address(so the client IP address seen by server). -- ___ Python tracker <https://bugs.python.org/issue32572> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
