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En-tête IP

IP:   ----- IP Header -----
IP:   
IP:   Version = 4
IP:   Header length = 20 bytes
IP:   Type of service = 0x00
IP:         xxx. .... = 0 (precedence)
IP:         ...0 .... = normal delay
IP:         .... 0... = normal throughput
IP:         .... .0.. = normal reliability
IP:   Total length = 40 bytes
IP:   Identification = 44917
IP:   Flags = 0x4
IP:         .1.. .... = do not fragment
IP:         ..0. .... = last fragment
IP:   Fragment offset = 0 bytes
IP:   Time to live = 128 seconds/hops
IP:   Protocol = 6 (TCP)
IP:   Header checksum = 3496
IP:   Source address = 194.167.200.173, dhcp-e173
IP:   Destination address = 194.167.200.199, iena
IP:   No options
IP:

On retrouve ici certaines informations de l'en-tête Ethernet, comme la source et la destination, on retrouve aussi la longueur du paquet : 40 octets (plus 20 pour l'en-tête), et le protocole de l'en-tête suivant (TCP).



Thomas VAN OUDENHOVE DE SAINT GERY 2002-11-18