This post is to document the process of configuring dynamic IPsec VPN from Juniper SRX to FortiGate Firewall, then configure OSPF over IPsec tunnel interfaces with a bit of OSPF route filtering. Environment 1 x Fortinet FortiGate Firewall with dynamic WAN IP address 1 x Juniper SRX firewall with Static WAN IP address Requirement is […]
How to Configure Dial-up IPsec VPN from Fortinet FortiGate to Juniper SRX Read More »
This post is about fixing Cisco C9200L-24P uplink Issue on IOS version 17.3.4b. Issue and Environment 1x Cisco 9200L-24P with 4x 10G SFP module Cisco 10G SFP uplink to another Cisco Core Switch IOS version is 17.3.4b on Cisco 9200L-24, it was the “recommended” version on Cisco website before Physical link between Cisco 9200L-24P and
How to fix Cisco C9200L-24P Uplink Issue on 17.3.4b Read More »
This post is to document the process of migrating VMware Standard Switch to Distributed Switch. The purpose of this change is to enable LACP on both VMware Hosts and Core/Top of Rack Switch. Environment Three-node cluster connected to Two-Switch stack with redundant connection for each switch On each switch port, it is configured with standard
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This post is about configuring IPsec VPN between Cisco FTD/FMC Firepower and Fortinet FortiGate firewall Environment Cisco FTD firewall on routed mode and managed by FMC Fortinet FortiGate Firewall Note: Feel free to modify the Phase1 and Phase2 settings based on your security requirements Fortinet FortiGate Firewall Configuration Go to “VPN – IPsec Tunnels –
How to Configure IPsec VPN between Cisco FTD/FMC and Fortinet Firewall Read More »
This post is to document the process to upgrade vSphere ESXi from 6.5 U2 to 7.0 U2 using Offline Bundle. Preparation Check the VMware official doc from the link below, confirmed it is ok to upgrade from 6.5 U2 directly to 7.0 U2 https://kb.vmware.com/s/article/70785 Download the Offline bundle from the link below Download VMware vSphere
How to Upgrade vSphere ESXi from 6.5 U2 to 7.0 U2 with Offline Bundle Read More »
This post is about using iPerf to test link speed/bandwidth under windows environment. Environment 1 x Point to Point (MPLS) link provided by ISP 2 x Windows Server 2022 Server 64bit on each side of the link, Windows 10/11 will do the job as well iPerf3 downloaded on both Windows Servers from iPerf official link
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This post is to document the PowerShell script to bulk change Team upgrade policy: coexistence mode. It is helpful when you are handling a Team migration or you are having an issue with globally enabling “UpgradeToTeams”/ “Teams Only” mode. Error like below is caused by Teams Public DNS records, but in this case we don’t
How to Bulk Change Teams Upgrade Policy via PowerShell Read More »
This post is about fixing Microsoft Teams PowerShell error: The ‘Connect-MicrosoftTeams’ command was found in the module ‘MicrosoftTeams’, but the module could not be loaded. For more Information, run “Import-Module MicrosoftTeams”. The Initial Error Tried uninstall and install again but not helping, we can see the module is correctly installed Now we run “import-module MicrosoftTeams”,
How to Fix the ‘Connect-MicrosoftTeams’ Could Not be Loaded error Read More »
This post is to document the process of configuring Guest WIFI using Cisco Wireless LAN Controller (WLC), ideally you would configure a Anchor WLC in a DMZ and use EoIP tunnel to send all guest traffic to anchor controller. However, in this example, we only have a HA pair of WLC without the luxury of
How to Configure Guest WIFI Using Cisco Wireless LAN Controller (WLC) Read More »
This post is to document the process to configure DHCP option 119 in Windows DHCP Server and Cisco Switch. Environment Windows Server 2022 Domain Controller with DHCP roles configured Windows 10 devices on the end user side Multiple Domains with two-way trust configured DNS Suffix needs to be configure for both domains: ICTFella.com and DomainAA.com
How to Configure DHCP Option 119 in Windows DHCP Server and Cisco Switch Read More »
