Subject: ftp.netbsd.org via CheckPoint FW-1
To: None <netbsd-users@netbsd.org>
From: John D Smerdon <jds@smerdon.livonia.mi.us>
List: netbsd-users
Date: 12/23/2002 13:49:18
When trying to use Mozilla 1.2.1 or MS IE 5.5 to browse
ftp://ftp.netbsd.org/ I get error messages like "document contains
no data" or "Cannot find server or DNS error".

A packet trace on the Internet side of the firewall shows the
"230-\r\n" response packet is sent along with the rest of the ftp
banner.

A packet trace shows a TCP reset from the Check Point FW-1 NG FP2
firewall to the client after the "230-" response packet.

Are there any known issues with Check Point firewalls not working
with the NetBSD FTP server?

Is a "230-\r\n" a valid response or does the ftp response packet
need a "230 and some text\r\n"?

Outside packet trace:

204.152.184.75 -> 1.1.1.254 FTP R port=10207 220 ftp.netbsd.org F
1.1.1.254 -> 204.152.184.75 FTP C port=10207 USER anonymous\r\n
204.152.184.75 -> 1.1.1.254 FTP R port=10207 331 Guest login ok,
1.1.1.254 -> 204.152.184.75 FTP C port=10207 PASS mozilla@example
204.152.184.75 -> 1.1.1.254 FTP R port=10207 230-\r\n
204.152.184.75 -> 1.1.1.254 FTP R port=10207     The NetBSD Proje

Inside packet trace:

204.152.184.75 -> 1.1.1.254 FTP Response: 220 ftp.netbsd.org F
1.1.1.254 -> 204.152.184.75 FTP Request: USER anonymous
204.152.184.75 -> 1.1.1.254 FTP Response: 331 Guest login ok,
1.1.1.254 -> 204.152.184.75 FTP Request: PASS mozilla@example
204.152.184.75 -> 1.1.1.254 FTP Response: 230-
1.1.1.254 -> 204.152.184.75 TCP 1793 > 21 [ACK] 
204.152.184.75 -> 1.1.1.254 TCP 21 > 1793 [RST] 

-- 
John D. Smerdon                      jds at smerdon.livonia.mi.us
Livonia, Michigan, US