| Front | IP: Header: IPv4 |
|---|---|
| Back | - Version - Source and destination address (32 bits each) - Length of the datagram - Length of the header - Checksum of the header (header only!) - Upper Layer (protocol to which the data is transferred, e.g., TCP, UDP, ICMP) - TTL: Time to Live (maximum number of "hops", is counted down) - Type of Service - Fragmentation information: Identifier, Flags, Fragment offset Length: 20 bytes plus options (additional fields by header possible) -------------------------------------------------- --- Attention: The above sequence does not correspond to the order in the header, but is "Learning-optimized" |
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