No. 519 | EZL70 in ATC(1) TCP-Connection not runs | 2009-07-23 | ||
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additional to my request 517 (one week ago) now I tried to connect the EZL via ATC-mode to a apach-server in the same network area with following result: After I put the ATDT-command via RS232 to the EZL it aswered "NO CARRIER". Then I sniffs the TCP messages with the ethereal-tool on the server side: the 1. TCP-step, request from EZL: IP, Port all OK SYN=1 the 2. TCP-step, respons from apach: same all OK ACK=1/SYN=1 ACK-No.=1 but in the 3. Tcp-step from EZL: ACK=1/RST=1 and ACK-No.=3501708736 then the EZL sends a 4. message with ACK=1/RST=1 and ACK-No.=1 result is: not connected The same result I get if I try to connect to an external server. The ethereal-sniff shows for the 1. and 3. TCP-steps the same. In COD-mode with fixed peer-IP in the EZL the connection is established well. But I can not change the peer-IP via serial. I hope you can help me |
Writer | Altmann | Company | |
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