Tag: Networking

  • Disabling SIP ALG on a Fortigate Firewall

    Disabling SIP ALG This article will guide you through the steps required to disable the SIP ALG (Session Initiation Protocol Application Layer Gateway) setting on a Fortigate Firewall. Disabling SIP ALG can help resolve issues related to VoIP (Voice over IP) communications by ensuring that the SIP traffic is not altered or interfered with by…

  • Picking the Right Wi-Fi Band: 2.4 GHz, 5 GHz, and 6 GHz

    Picking the Right Wi-Fi Band: 2.4 GHz, 5 GHz, and 6 GHz

    Wi-Fi technology has evolved significantly over the years, offering users more options in terms of speed, range, and reliability. The choice between 2.4 GHz, 5 GHz, and the newer 6 GHz Wi-Fi bands can greatly impact your network’s performance. Understanding the differences between these bands is crucial for optimizing your wireless experience, whether you’re setting…

  • Setting Up a UniFi Guest Captive Portal: Branding, Authentication, and Settings

    Setting Up a UniFi Guest Captive Portal: Branding, Authentication, and Settings

    A guest captive portal is essential for providing controlled access to your network while offering a user-friendly interface for visitors. UniFi’s management system offers extensive customization for captive portals, from branding to authentication, making it a robust tool for managing guest access. Below is a step-by-step guide on setting up a UniFi Guest Captive Portal,…

  • UniFi Network Settings Explained: A Deep Dive into Configuration Options

    UniFi Network Settings Explained: A Deep Dive into Configuration Options

    UniFi network devices provide a wide range of customizable settings, allowing you to tailor your network to meet specific needs. Below, we’ll go over the key settings found in your UniFi network interface and explain what each one does. VLAN ID Guest Network Isolate Network Allow Internet Access Network Group IGMP Snooping Multicast DNS DHCP…

  • How to Set Spanning Tree Priority in a UniFi Network

    How to Set Spanning Tree Priority in a UniFi Network

    Spanning Tree Protocol (STP) is a network protocol designed to prevent loops in network topologies by creating a loop-free logical topology. In a UniFi network, understanding how to configure Spanning Tree Priority is essential for optimizing the network’s efficiency and reliability, especially in environments with multiple switches. In this article, we will guide you through…

  • Choosing Between STP and RSTP for UniFi Networks: A Guide to Configuration

    When setting up a UniFi network, one crucial decision you need to make is whether to use Spanning Tree Protocol (STP) or its faster variant, Rapid Spanning Tree Protocol (RSTP). Both protocols are designed to prevent network loops, but they differ in how quickly they respond to network changes and in their overall efficiency. This…

  • T1 and PRI Troubleshooting and Fun At Layers 1 and 2

    T1 and PRI Troubleshooting and Fun At Layers 1 and 2

    Believe it or not in 2021 T1 lines are still fairly common in many enterprise and rural settings. T1s can be used for both voice and data, the most common circuit these days is a PRI for voice. I’ve found support for these circuits are often non-existent at the lower levels of carrier and vendor…

  • PD Overload Error on ICX Switches

    PD Overload Error on ICX Switches

    Recently I was asked to take a look at an issue where POE devices kept rebooting. Upon looking at the device errors like PD Overload and random ports having POE disabled kept appearing. Doing a show inline power command returned the below output Everything looked good at a glance; we had 124 watts budget total…