This post is about fixing “%PM-4-ERR_DISABLE: pagp-flap error detected” error on Cisco switch Error log Root cause From the log, we can see the related ports just flap like crazy Fix Find out the reason for the physical connectivity issue. To configure auto recovery and extend the threshold, please use the command below: Useful link […]
How to fix “pagp-flap error” on Cisco Switch Read More »
This post is about fixing Ubuntu 22.04 Freeze at login screen and no Wi-Fi Adapter found issue, following with the previous post: Environment Dell Latitude 7390 Intel Integrated Graphic card UHD 620 Intel(R) Dual Band Wireless-AC 8265 Ubuntu Freeze at Login Screen It is frustrating when you just completed the Ubuntu 22.04 installation on the
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This post lists two methods to install Ubuntu on an External Hard Drive or USB Drive. Preparation Method 1 — Persistent mode This is the easiest way, as all you need is to utilize the “Persistent partition size” option in Rufus so that this partition will retain the personal data. Warning and progress Note: Method 1 has
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This post is to list out the compatible configuration to allow default VLAN1 traffic between Cisco and Juniper. In this post, let’s assume VLAN1 are used for Switch Management, yes it is bad practice 🙁 Single Connection Between Cisco and Juniper Cisco Juniper Please define your VLAN 1 as native vlan on the Juniper side:
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This post is about fixing the Forti Manager and Fortigate firewall out-of-sync error – “the category is already set in another filter” Troubleshooting * Upgrade the Fortigate firewall version to match up the version with Forti Manager, but it does not help * Check the installation log and the error is as below: Fix After
This Post is the last part of Configuring Azure Hub and Spoke – Configure Forced Tunnel so all traffic (paritcularly internet traffic) can be routed via the IPsec tunnel. Overall Topology Environment *On-prem Environment has a pair of Fortinet Fortigate firewalls with a public IP of 4.4.4.4 *Hub and Spoke are on different subscriptions. Note:
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This post is about configuring VRRP between Fortinet Fortigate and Cisco Environment Fortigate firewall and Cisco router’s interfaces are configured using sub-interface, the physical interface will also work here. 100 is the VRRP Group ID FortiGate Firewall has a higher priority 255, so it will be the master Cisco Configuration Fortinet FortiGate Firewall Configuration As
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Environment Forti AP U431F – WiFi 6/AX enabled access points FortiGate Firewall is used as Wireless Controller to upgrade the firmware for Forti AP FortiGate Firewall and Forti AP are on different VLAN/Networks DHCP Option 138 is configured on Windows Server 2022 to point to the FortiGate (Wireless Controller) address Issue Solution Go to the
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Environment Forti AP U431F – WiFi 6/AX enabled access points FortiGate Firewall is used as Wireless Controller FortiGate Firewall and Forti AP are on different VLAN/Networks. DHCP Option 138 is configured on Windows Server 2022 to point to the FortiGate (Wireless Controller) address Error You can see the Image ID is “MERU SECONDARY“ Solution You
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Issue Summary FortiGuard ID: FG-IR-22-377CVE ID: CVE-2022-40684Severity: Critical / CVSS: 9.6 Specific versions of Fortinet FortiOS (FortiGate Firewall) and FortiProxy may allow an unauthenticated attacker to perform operations on the administrative interface via specially crafted HTTP or HTTPS requests. Affected Products FortiOS version 7.0.0 to 7.0.6 FortiOS version 7.2.0 through 7.2.1 FortiProxy: From 7.0.0 to
