Troubleshooting Cisco 9800-CL HA on VMware ESXi
After months of effort, I finally resolved the issues when configuring a Cisco 9800 VM pair with…
Networking
Networking articles.
Configuring Siemens Profinet on Cisco Catalyst Switches
This project was quite a challenge! I was tasked with setting up a training lab featuring IoT…
Setting up a Palo Alto GlobalProtect Lab: CVE-2024-3400
Hey tech enthusiasts! Long time, no post. It’s been a whirlwind first half of 2024, packed with…
Configuring Cisco IOS-XE IP Directed Broadcast for Microsoft SCCM Wake on LAN
Microsoft SCCM is deployed generally in a centralised manner – in the datacentre and with some downstream…
Setting up a Cisco IOS-XE Web UI Lab: CVE-2023-20198 and CVE-2023-20273
As reported by Cisco back in mid-October 2023. Two vulnerabilities exist in IOS-XE that allow an unauthenticated…
Configuring VMware VAMI for Internet Access via a Proxy Server
While upgrading VMware vSphere Replication 8.7 to 8.7 recently, I encountered a noteworthy issue. It appears that…
Configuring STP interoperability between Dell and Cisco Switches
Consider the following network diagram: – Dell OS10 Cores in VLT mode. – Cisco Switches running IOS-V…
UCCX 12.5.(1)SU3 Upgrade – Switch Version ERROR: Acquiring lock failed
Last weekend I completed a Cisco UCCX 12.5(1)SU1 to SU3 in place ugprade. The reason for doing…
Riverbed Steelhead – Failed to join domain using ads: failed to lookup DC info for domain ‘company.com’
I recently had a Riverbed Steelhead CX3070 fail (fan tray was screaming randomly so I did an…
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