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To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

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ICMP Message Type

Relevant ICMP Message Types

QuestionAnswer
Type 0 Echo Reply
Type 3 Destination Unreachable
Type 4 Source Quench
Type 5 Redirect
Type 8 Echo Request
Type 11 Time Exceeded
Type 3 Code 0 Destination Network Unreachable
Type 3 Code 1 Destination Host Unreachable
Type 3 Code 6 Network Unknown
Type 3 Code 7 Host Unknown
Type 3 Code 9 Network Administratively Prohibited
Type 3 Code 10 Host Administratively Prohibited
Type 3 Code 13 Communication Administratively Prohibited
Type 3 Code 0 Redirect Datagram for Network
Type 3 Code 1 Redirect Datagram for Host
Type 11 Code 0 TTL Exceeded
Created by: Dks0512