Määritellyt optiot (RFC791)
CLASS NUMBER LENGTH DESCRIPTION
----- ------ ------ -----------
0 0 - End of Option list. This option occupies only
1 octet; it has no length octet.
0 1 - No Operation. This option occupies only 1
octet; it has no length octet.
0 2 11 Security. Used to carry Security,
Compartmentation, User Group (TCC), and
Handling Restriction Codes compatible with DOD
0 3 var. Loose Source Routing. Used to route the
internet datagram based on information
0 9 var. Strict Source Routing. Used to route the
internet datagram based on information
0 7 var. Record Route. Used to trace the route an
0 8 4 Stream ID. Used to carry the stream
2 4 var. Internet Timestamp.