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FTP in transparent mode - issue in download/upload

Hello, 
we are experiencing issue in FTP proxy in both download/uploads. There are frequent disconnection with remote hosts... I don't understand why

this is a part of today log, during this session the file transfer was aborted:
2011:09:30-15:32:27 firewall frox[30537]: Connect from MY_IP_CLIENT_WITH_ISSUE(***.***.***.local)

2011:09:30-15:32:27 firewall frox[30537]: ... to 94.33.2.x()
2011:09:30-15:32:39 firewall frox[30537]: PASV: 94.33.2.x:33409
2011:09:30-15:32:40 firewall frox[30537]: PASV: 94.33.2.x:33410
2011:09:30-15:32:40 firewall frox[30537]: Flushing server buffer
2011:09:30-15:32:40 firewall frox[30537]: id="0101" severity="info" sys="SecureWeb" sub="ftp" name="send file, not scanned" srcip="MY_IP_CLIENT_WITH_ISSUE" dstip="94.33.2.xx" url="aaaa.aaa.aaa/x.zip" user="username" size="0"
2011:09:30-15:32:41 firewall frox[30537]: PASV: 94.33.2.x:33411
2011:09:30-15:35:12 firewall frox[30623]: Connect from yyy.yyy.yyy.yyy(yyy.yyy.yyy.local)
2011:09:30-15:35:12 firewall frox[30623]: ... to zzz.zzz.zzz.zzz()
2011:09:30-15:35:12 firewall frox[30623]: Client closed connection
2011:09:30-15:35:12 firewall frox[30623]: Closing session
2011:09:30-15:37:41 firewall frox[30537]: Connection timed out.
2011:09:30-15:37:41 firewall frox[30537]: Closing session


someone can help me?

Note: the dimension of file was very high so the antivirus check should be bypassed


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  • Is this behavior new since upgrading to V8, a new configuration or did the old configuration just stop working?

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • Is this behavior new since upgrading to V8, a new configuration or did the old configuration just stop working?

    Cheers - Bob


    Hi Bob,
    I notice this behaviour since v8 upgrade. I have v8.103... The first times I supposed that there was an issue on remote ftp, now I see that it happens very often. With v7 no issue at all. I upgraded with one touch upgrade
  • Well, mi amico, you know all my clients still are on 7.511 (except the newest ones that bought after Astaro stopped shipping ASGs with V7.5).  I'm not yet convinced that 8.202 will be robust enough to meet my demands for my customers.  I'll begin testing it after it's released next week.

    If you don't want to downgrade to 7.511, then I bet your only choice is to be sure you have a Packet Filter rule in place to allow FTP traffic and to disable the FTP Proxy until you can upgrade to 8.2. [:(]

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA