Here is the summary of the Traffic. IP 192.168.1.233 is my PC and IP 192.168.1.239 is the uClinux board.
Frame number 1 - 9 is the small index.html -> its ok
Frame number 11 - 19 is the large index.html (index_old.html) -> not ok
No. Time Source Destination Protocol Info
1 0.000000 192.168.1.233 192.168.1.239 TCP 1059 > http [SYN] Seq=0 Ack=0 Win=64240 Len=0 MSS=1460
2 0.004007 192.168.1.239 192.168.1.233 TCP http > 1059 [SYN, ACK] Seq=0 Ack=1 Win=5840 Len=0 MSS=1460
3 0.004033 192.168.1.233 192.168.1.239 TCP 1059 > http [ACK] Seq=1 Ack=1 Win=64240 Len=0
4 0.004553 192.168.1.233 192.168.1.239 HTTP GET /index.html HTTP/1.1
5 0.005852 192.168.1.239 192.168.1.233 TCP http > 1059 [ACK] Seq=1 Ack=266 Win=6432 Len=0
6 0.017285 192.168.1.239 192.168.1.233 HTTP HTTP/1.0 200 OK (text/html)
7 0.153002 192.168.1.233 192.168.1.239 TCP 1059 > http [ACK] Seq=266 Ack=347 Win=63894 Len=0
8 10.017317 192.168.1.239 192.168.1.233 TCP http > 1059 [FIN, ACK] Seq=347 Ack=266 Win=6432 Len=0
9 10.017377 192.168.1.233 192.168.1.239 TCP 1059 > http [ACK] Seq=266 Ack=348 Win=63894 Len=0
10 10.027148 192.168.1.233 192.168.1.239 TCP [TCP ZeroWindow] [TCP Dup ACK 9#1] 1059 > http [RST] Seq=266 Ack=348 Win=0 Len=0
11 11.036714 192.168.1.233 192.168.1.239 TCP 1060 > http [SYN] Seq=0 Ack=0 Win=64240 Len=0 MSS=1460
12 11.037430 192.168.1.239 192.168.1.233 TCP http > 1060 [SYN, ACK] Seq=0 Ack=1 Win=5840 Len=0 MSS=1460
13 11.037454 192.168.1.233 192.168.1.239 TCP 1060 > http [ACK] Seq=1 Ack=1 Win=64240 Len=0
14 11.037967 192.168.1.233 192.168.1.239 HTTP GET /index_old.html HTTP/1.1
15 11.039311 192.168.1.239 192.168.1.233 TCP http > 1060 [ACK] Seq=1 Ack=338 Win=6432 Len=0
16 11.050942 192.168.1.239 192.168.1.233 HTTP Continuation
17 11.050983 192.168.1.233 192.168.1.239 TCP [TCP Dup ACK 13#1] 1060 > http [ACK] Seq=338 Ack=1 Win=64240 Len=0 SLE=2575009540 SRE=2575009617
18 21.045938 192.168.1.239 192.168.1.233 TCP http > 1060 [FIN, ACK] Seq=1102 Ack=338 Win=6432 Len=0
19 21.045984 192.168.1.233 192.168.1.239 TCP [TCP Dup ACK 13#2] 1060 > http [ACK] Seq=338 Ack=1 Win=64240 Len=0 SLE=2575009540 SRE=2575009618