Deciphering the third transport protocol's four RFCs is a task to rival the proverbial blind man trying to understand an ...

Have you ever performed surgery on data packets? There are times when that may be the best way to troubleshoot and optimize your network. This edition of the Packet Professor will get you started in ...

In the last newsletter, we dug into some of the details of TCP and how the protocol would typically handle a lost packet in the middle of a transmission. This time, our reader Ken offers another ...

Security and networking platforms for large enterprises and data centers are rapidly evolving in sophistication and performance. In the security space, simple packet-filtering firewalls are evolving ...

When working with TCP/IP, the model is simplified to four layers plus the physical layer as shown in Figure 2-4. This figure depicts the encapsulation process with protocol overhead down to Ethernet, ...

Scott Reeves demonstrates the flow graph feature of the Wireshark tool, which can help you check connections between client server, finding timeouts, re-transmitted frames, or dropped connections. I ...