Network Engineering

JANUARY 15, 2025

I have a TCP server running on my Ubuntu gateway computer at 10.0.0.1:8080. My Wi-Fi is connected to the gateway's LAN (enp4s0) port, and my modem is in bridge mode and plugged into enp3s0. 8080 [link] , I see the correct traffic returning and logs showing from my server on 8080.

LAN 130

LAN Gateway TCP Port 130

CATO Networks

SEPTEMBER 11, 2023

With Catos LAN Firewall policy, you can configure rules for allowing or blocking LAN traffic directly on the Socket, without sending traffic to the POP. Figure 3 – LAN Firewall Policy When to use a LAN firewall policy There are several scenarios in which it could make sense to apply a LAN firewall policy.

LAN 52

LAN Cloud Firewall WAN 52

Kentik

JANUARY 13, 2021

Send these pings using the Internet Control Message Protocol (ICMP) or TCP to one or any of the devices you believe to be involved. Ping is a utility that’s available on practically every system, be it a desktop, server, router, or switch. If that’s the case, you should consider TCP Traceroute on Linux, which switches to TCP packets.

Network 114

Network Networking TCP Protocol 114

CATO Networks

JUNE 14, 2023

In most cases, these patterns are evaluated on a single network packet, rather than a sequence of flows between a client host and a server. MAC address in the data link layer of a packet capture Moving up the stack, at the network and transport layers, is a much more granular source of information, the TCP/IP stack.

IoT 52

IoT TCP Protocol Server 52

Kentik

JULY 28, 2021

It isn’t so much that packet loss is a huge problem — TCP and QUIC were engineered in anticipation that lost packets would be inevitable. Latency : Missing packets in connection-oriented protocols such as TCP and QUIC result in lost packets getting resent. UDP vs. TCP. Packet Loss Causes Problems with Cloud Applications.

Cloud 116

Cloud TCP Routers Protocol 116

Network Engineering

JANUARY 31, 2025

Let's say I'm looking to have a PLC as a Modbus TCP server with dual Ethernet ports. On one port I would like to connect the PLC to a LAN either in star or ring topology. I'm getting confused finding terms such as DSA (Distributed Switch Architecture) and Virtual LANs. The PLC has a host processor with an integrated MAC.

Ethernet 130

Ethernet Port LAN Topology 130