TCP/IP Header
description
Transcript of TCP/IP Header
Referensi http://www.ietf.org http://www.sans.org http://rr.sans.org
Topologi Sebuah Paket Data
TCP Header
Contoh Aplikasi di atas TCP Mail SMTP - port 25 Mail POP3 - port 110 Web HTTP - port 80
IP Header
Format Type of Service (ToS) Bit 0-2 Precedence
111 Normal Control 110 Internetwork Control 101 CRITIC / ECP 100 Flash Override 011 Flash 010 Immediate 001 Priority 000 Routine
Format Type of Service (ToS) Bit 3 Delay
0 normal delay 1 low delay
Bit 4 Throughput 0 normal throughput 1 high throughput
Bit 5 Reliability 0 normal reliability 1 high reliability
Bit 6-7 Reserved
Flag R bit 0 is reserved & must be zero DF bit 1: don’t fragment bit
0 may fragment 1 don’t fragment
MF bit 2: more fraqments bit 0 last fragment 1 more fragment