I have a problem setting up an Auth TLS FTP connection with the Firefox add-on FireFTP to a none-Bubba-FTP-server. When connecting from LAN everything works okay, but when I want to connect from WAN a strange thing occurs:
Code: Select all
220 *********** FTP server ready.
AUTH TLS
234 AUTH SSL command successful.
PBSZ 0
200 PBSZ command successful (PBSZ=0).
USER **********
331 Password required for **********.
PASS (password not shown)
230 User ********** logged in.
FEAT
211- Extensions supported:
AUTH TLS
PBSZ
PROT
SIZE
MDTM
REST STREAM
UTF8
211 End.
PWD
257 "/" is current directory.
TYPE A
200 Type set to A.
PROT P
200 Protection level set to Private.
PASV
227 Entering Passive Mode (yyy,yyy,yyy,yyy,217,84)
LIST -al
QUIT
220 ********** FTP server ready.
AUTH TLS
234 AUTH SSL command successful.
PBSZ 0
200 PBSZ command successful (PBSZ=0).
USER **********
331 Password required for **********.
PASS (password not shown)
230 User ********** logged in.
CWD /
250 CWD command successful.
TYPE A
200 Type set to A.
PASV
227 Entering Passive Mode (yyy,yyy,yyy,yyy,217,80)
LIST -al
150 Opening BINARY mode SSL data connection for 'file list'.
As you can see the first connect and the second connect differs. In the first connect there's a reconnect after 'LIST -al' and all connects ands with '150 Opening BINARY mode SSL data connection for 'file list'.'
Some config data:
Bubba|Two:
Package name Package version
bubba-frontend 1.2.0.50
bubba-backend 1.2.0.44
bubba-album 1.2.0.4
filetransferdaemon 0.50.16
Port 21 (TCP for FTP) and Port 55536:55663 (TCP and UDP for passive FTP) are forwarded to my FTP-server.
The FTP-server service is not used.
FireFTP:
FireFTP 1.0.4 'Human Being'
FTP-Server:
Synology DS 207+ with firmware version DSM 2.2-0942 (latest)
Listening on port 21, passive port-range 55536-55663
UTF-8 filename support switched on
On several forum is said that this is due to a (nat) router problem. Is there a way to solve that?
Thanx!