Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
remaining cards
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.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

ICMP Message Type

Relevant ICMP Message Types

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