Hello all... for about four weeks we have a strange FTP problem. A Servicemachine working for months and gathering data from a remote system suddenly makes problems. The FTP open to the remote system always gets a timout:
ftp 128.1.2.120 ( timeout 450 trace VM TCP/IP FTP Level 440 Translate Table: STANDARD about to call BeginTcpIp Connecting to 128.1.2.120, port 21 SysAct 0 21 -2147417480 CC -1 ==> Active open to host 128.1.2.120 port 21 from host 0 port 65535 Foreign host did not respond within OPEN timeout Unable to connect to 128.1.2.120 Foreign host did not respond within OPEN timeout Command: quit SysHalt has been Called Ready; T=0.01/0.02 14:08:40 Ping and traceroute are working well. This is z/VM 4.4, the remote system is an AIX system. A tcpdump analysis by a network guru shows that the z/VM FTP is resetting the packets receiving from the open request to AIX system. But in the tcpdump-file we find no reason for this behavior. Any ideas ? Thanks Ewald Roller Rolf Benz AG & Co. KG
