IP

From NovaOrdis Knowledge Base
Revision as of 21:00, 3 April 2018 by Ovidiu (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

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.

Protocol

Header Checksum

Source IP Address

Destination IP Address

Options