Forum Discussion
Mike_Ho
Nov 17, 2015Cirrus
Here's an HTTP connection attempt between the same client and VIP whereas in the OP it was HTTPS. In this instance notice how the TCP ISN sent by the BigIP (as recorded by tcpdump) does not match the ISN received by the client (as recorded by tcpdump). On retransmitted SYN/ACK packets however the ISN matches on both ends. I'm scratching my head on this. Not all but most HTTP (TCP/80) connection attempts result in this behavior.
BigIP sees:
Client sees: