If the server is rebooted after the previous two tests, all the state information about the host will be lost.
When the client request arrives with a normal CC option, the server forces a three way handshake since the CC value received from the client is undefined. The three way handshake is forced by the SYNACK segment where only the client SYN and not the data is acknowledged.
win 15928 <mss 1460,nop,nop,cc 9> (DF)
arp who-has elendil.ul.ie tell devilwood.ece.ul.ie
arp reply elendil.ul.ie is-at 0:20:af:e1:41:4e
devilwood.ece.ul.ie.8888 > elendil.ul.ie.2141: S 25337815:25337815(0)
ack 2623134528 win 17424 <mss 1460,nop,nop,cc 2,
nop,nop,ccecho 9> (DF)
elendil.ul.ie.2141 > devilwood.ece.ul.ie.8888: F 20:20(0) ack 1
win 15928 <nop,nop,cc 9> (DF)
devilwood.ece.ul.ie.8888 > elendil.ul.ie.2141: . ack 21 win 17405
<nop,nop,cc 2> (DF)
devilwood.ece.ul.ie.8888 > elendil.ul.ie.2141: FP 1:31(30) ack 21
win 17424 <nop,nop,cc 2> (DF)
elendil.ul.ie.2141 > devilwood.ece.ul.ie.8888: . ack 32 win 15928
<nop,nop,cc 9> (DF)