Troubleshooting Localized DHCP Failures on Aruba CX Switches
A practical walkthrough of troubleshooting a localized DHCP failure on an Aruba 6200 CX switch caused by strict DHCP snooping and stale client bindings.
#networking
Archive of posts categorized under this tag.
Upgrading to FortiGate 70G: Resolving IPsec VPN Sync Issues
Resolving dropped packet and sync issues over IPsec VPNs when upgrading to FortiGate 70G by migrating from MTU overrides to TCP-MSS clamping.
Secure File Transfers: Moving Beyond TFTP to SCP in Enterprise Networks
Upgrade your network management security. A practical guide to configuring and using SCP for firmware and configuration transfers on Cisco switches.
Configuring Switch Ports for IP Telephony
Master IP telephony port configuration. Learn how to handle Voice VLANs, LLDP-MED, and QoS on Aruba CX and Cisco switches while avoiding common DHCP and PoE pitfalls.
Configuring FortiGate Local-In Policies: Hardening the Control Plane
Learn how to secure your FortiGate's control plane using local-in policies. Learn CLI configuration, handle auto-created rules, and restrict VPN access by geography.
Automating FortiGate Configuration at Scale with Python and Netmiko
Stop wasting time with manual CLI updates. Learn how to use Python and Netmiko to push standardized configuration blocks to multiple FortiGate firewalls efficiently.
Azure Application Gateway: Implementing Path-Based WAF Policies
Eliminate WAF false positives for admins without compromising public security. Learn to architect a dual-policy WAF in Azure Application Gateway using path-based routing.
Automating ArubaOS-CX Backups with Python and Paramiko
Learn how to automate ArubaOS-CX configuration backups to a TFTP server using Python and Paramiko. A practical guide for ensuring switch consistency.
How to Restart the DHCP Service on a FortiGate Firewall
A practical guide to restarting the FortiGate DHCP daemon (dhcpd) via CLI to resolve hangs or failures without rebooting the firewall or interrupting traffic.
The Hidden Culprit Behind 'Slow' Enterprise Wi-Fi: Apple Private Relay Exposed
Apple Private Relay can cause 'slow internet' complaints on enterprise networks. Learn why this privacy feature breaks security and how to fix it at the firewall.