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What does DUP mean on a ping?
duplicate packet
DUP means duplicate packet. From man ping : Duplicate and Damaged Packets ping will report duplicate and damaged packets. Duplicate packets should never occur, and seem to be caused by inappropriate link-level retransmissions.
What is DUP in terminal?
If (DUP!) is displayed in the ping command output, the device has received Echo Reply packets with the same sequence number. In this case, you need to check the network environment.
What does it mean when the ping command returns a result of?
The ping command sends a request over the network to a specific device. A successful ping results in a response from the computer that was pinged back to the originating computer.
What DUP means?
(in Northern Ireland) abbreviation for. (Government, Politics & Diplomacy) Democratic Unionist Party.
What is dup for?
The dup() system call creates a copy of a file descriptor. It uses the lowest-numbered unused descriptor for the new descriptor. If the copy is successfully created, then the original and copy file descriptors may be used interchangeably.
What does a successful ping indicate?
A successful ping typically indicates that the z/OS® system can communicate with the printer; however, you might receive a successful ping even though the IP address of the TCP/IP-attached printer is a duplicate of another IP address.
What could DUP mean when using ping in Linux?
From man ping: ping will report duplicate and damaged packets. Duplicate packets should never occur, and seem to be caused by inappropriate link-level retransmissions. Duplicates may occur in many situations and are rarely (if ever) a good sign, although the presence of low levels of duplicates may not always be cause for alarm.
Why do I get duplicate packets in Ping?
ping will report duplicate and damaged packets. Duplicate packets should never occur, and seem to be caused by inappropriate link-level retransmissions. Duplicates may occur in many situations and are rarely (if ever) a good sign, although the presence of low levels of duplicates may not always be cause for alarm.
What does DUP stand for in networking terms?
DUP means duplicate packet. Duplicate and Damaged Packets ping will report duplicate and damaged packets. Duplicate packets should never occur, and seem to be caused by inappropriate link-level retransmissions.
Why do my devices keep responding to Ping?
This is tricky to give an exact reason for this…here are some possibilities: 1) 2 devices respond to ping. 2) Echo requests are getting duplicated in network and end host is responding to each. 3) End device receives correct echo request, and the response is getting duplicated somewhere in the network.