IP: Difference between revisions
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==Source IP Address== | ==Source IP Address== | ||
==Destination IP Address= | ==Destination IP Address== | ||
==Options== | ==Options== | ||
Latest revision as of 21:00, 3 April 2018
Internal
IPv4 Header
Version
IHL
DSCP
ECN
Total Length
Identification
Flags
Fragment Offset
Time To Live
Eight-bit counter that prevents the datagram being routed endlessly. It represents the hop count: when the datagram arrives at a router, the router decrements TTL field by one. If the value after decrement is zero, the router drops the datagram and sends a "ICMP Time Exceeded" to the sender. The field is used by the traceroute implementation.