Hi, We are facing a peculiar issue in our network. From the ethreal packet capture on the client side, I see the following behaviour which appears quite strange to me:
1 Client --> Server [SYN] seq=0
2 Server --> Client [SYN, ACK] seq=0 ack=1
3 Client --> Server [ACK] seq=1 ack =1
4 Client --> Server [PSH] seq=1 ack =1 len=488
5 Client --> Server [FIN, ACK] seq =489 ack =1
6 Server --> Client [SYN, ACK] seq=0 ack=1 retransmission
7 Client --> Server [ACK] seq=490 ack=1( I don't know why the seq is 490,because I think it should be seq =1 ack=1)
8 Client --> Server [FIN,PSH,ACK] seq=1 ack=1 len=488
9 Server --> Client [ACK] seq=1 ack=490
Any ideas as to why this could be happening?