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How to Revert Mikrotik RB951 from Openwrt to RouterOS

Routing and Switching

If you’ve experimented with alternative firmware like OpenWrt on your MikroTik RB951 and are now looking to revert to the original RouterOS, you can use netinstall application from Mikrotik First Attempt Follow the instrcutions below but the “Netinstall” application never detected the RB951 device https://wiki.mikrotik.com/wiki/Manual:Netinstall Secondary Attempt Put Wireshark on the ethernet port and did […]

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How to configure Zscaler GRE tunnel on Juniper SRX with SLA

Cloud Based Security, Next Gen Firewall

Introduction Configuring a Zscaler GRE (Generic Routing Encapsulation) tunnel on Juniper SRX, along with SLA/failover capabilities, involves several steps. The process may vary slightly based on the specific Juniper SRX model and Junos OS version you are using. Below is a general configuration that you can follow. Make sure to adapt the instructions to your

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How to Migrate Firewall Configuration across Vendors

Next Gen Firewall

Migrating firewall configurations can be a complex task, but with the right tools, it becomes a much more manageable process. The Firewall Migration Tool from GitHub is a versatile solution that can bring efficiency and reliability to migrate firewall configurations such as addresses, groups, policies, and customized services etc. Big thanks to Vahid Tavajjohi!!! https://fwmig.readthedocs.io/en/latest/

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Cisco Switch Upgrade Procedures for 9500, 9300, 9200, and 3xxx Series

Routing and Switching

In this blog post, we will delve into the quick switch upgrade procedures for some of Cisco’s prominent switch series: the Catalyst 9500, 9300/9200, and 3xxx series Preparation Assume the below preparations a. Backup Configuration: Prior to any upgrade, make a complete backup of your switch configuration. This precautionary step ensures that you can restore

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How to Upgrade Old Palo Alto Firewall to New Model

Next Gen Firewall

Migrating from an old Palo Alto firewall to a new one involves a few more considerations, especially if the models or PAN-OS versions differ. Here’s a comprehensive approach: 1. Preliminary Steps: 2. Backup and Export Configuration: 3. Prepare the New Firewall: 4. Import Configuration to the New Firewall: 5. Post-Import Checks: 6. Additional Recommendations: Lastly,

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How to Disable ZTP in Palo Alto and Setup the Basic Configuration

Next Gen Firewall

Disabling Zero Touch Provisioning (ZTP) and setting up a basic configuration on a Palo Alto Networks firewall requires administrative access to the device, either through the command-line interface (CLI) or the web-based interface (WebUI). Disable ZTP using GUI 1.Connect to the firewall’s management IP address using a web browser.2.Login using the default credentials (username: admin,

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How to Fix Starlink Static Route issue in FortiGate Firewall

Next Gen Firewall

This post is about fixing Starlink static route issue in FortiGate Firewall Issue The issue comes when configuring Starlink in FortiGate Firewall; no matter how we configure the administrative distance and priority for the StarLink state route, one default configuration overrides the manual static route. Environment StarLink as secondary internet link, it should only kicks

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How to fix AWS “The requested configuration is currently not supported”

Cloud Web Hosting

Issue When launching a new instance, it pops error “The requested configuration is currently not supported” and instance lauch failed Possible reasons VPC’s tenancy setting is not Default Instance type is NOT supported in the zone or region, very likely local zone Troubleshooting and the fix In my case I am trying to deploy an

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How to Configure Trunk Port between Meraki and Cisco Catalyst Switch

Routing and Switching

This post is about cofiguring Trunk port between Meraki and Cisco Catalyst switch. Similar “cross-vendor” trunk port configuation from another post: Standard Trunk Port Configuration Meraki side Cisco Side LACP Etherchannel Configuration Meraki Side Cisco Side Useful link https://documentation.meraki.com/MS/Port_and_VLAN_Configuration/Switch_Ports

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