Duplicate packets are an often observed network behaviour. A packet is duplicated somewhere on the network and received twice at the receiving host. It is very often not desireable to get …

When the response on the first packet comes back all responses on the following (re-send) packets will be marked as duplicates (DUP). In normal traffic the duplicates are discarded but …

It means the reply packet is a duplicate. ICMP responses contain a sequence number. Sometimes you'll actually get more than one reply with the same sequence number. This is usually caused …

Jun 25, 2020 · Duplicate packets should be flagged as "TCP Spurious Retransmission" or "TCP Out-of-Order" in the info column. It has the same SEQ and ACK values as the original packet, …

duplications are good indicators to find the clues. We use Wireshark and CLI tools to find, recognize and dissect network/security anomalies to solve the issues. Duplications exist in …

Apr 25, 2023 · If you are having intermittent issues on your network or total outage, there is a possibility of having a duplicate ip on your network. One can quickly find a duplicate ip using …

Nov 30, 2014 · Tools such as ethtool can be used to diagnose your network interface card (NIC), triaging your wiring will typically require either a dedicated tester, or by using it continuously …

Sep 25, 2012 · A packet sniffer, such as WireShark can also help you to identify if the loop. Look for duplicate packets, with increased TTL. Look in several places around the network.

In Linux how can I ping a list of IP addresses (in a text file) and only output those that have duplicate ping replies?

Jun 27, 2020 · "True Duplicate" packets are completely identical, meaning that if you compare their bytes in the hex view you'll see that nothing changes when you jump between them in the …