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Sending unsolicited ACK to a virtual server increments the counter 'Total Software Rejected' from tmsh show ltm virtual 'name_of_virtual_server' when syn cookie status is not activated.
Potentially inaccurate statistics in tmsh show ltm virtual.
This has been observed under the following conditions: 1. The client sends a SYN, the LTM sends an SYN/ACK and then the client sends a bad ACK. 2. A client sends an ACK for a connection that does not exist in the connection table (either it never existed or had been closed).
None.
In this release, the system increments the syncookie reject stat only if a bad ACK could correspond to a syncookie the system issued.
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