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Routing & Switching

Subnet Mask Cheat Sheet

Security

Cisco ASA Static NAT

Below I am going to give some examples for Policy Static NATs and Regular Basic NATs. Configuring Policy Static NAT...
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Routing & Switching

Cisco CLI PIPE and Regular Expressions (RegEx)

Some common ones I use:...
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Data CenterRouting & Switching

Cisco Stack Port Channel Issues with MAC Address Persistency

When a switch stack forms a port-channel, the active stack member’s MAC Address is used for the LACP ID. The...
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Routing & Switching

RFC1918 Private IPv4 Address Spaces

RFC1918 name IP address range number of addresses largest CIDR block (subnet mask) host id size mask bits classful description...
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Security

Cisco Switch Security

Below I will go over the different security threats that can happen on our network and a way to mitigate...
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Data Center

Type-2 consistency status = failed

Here’s something you can come accross. When you do a “sh vpc“, you’ll notice that your Type-2 consistency status is...
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Routing & Switching

RIBs vs FIBs vs CEF and Data Plane vs Control Plane (How it all works)

RIB vs FIB In Cisco networking, the Routing Information Base (RIB) and Forwarding Information Base (FIB) are two separate but...
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Security

How to view the PSK (pre-shared key) on a Cisco ASA

There are times you might have to find the PSK in order to share it with a 3rd party vendor...
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Data CenterRouting & Switching

Cisco ASR 1004 L2TPv3 Pseudowire IPSec Encryption

Here I’m going to show a basic configuration on how to Encrypt a 10G link that has a stretched subnet....
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  • Home
  • About
  • Disclaimer
  • Guides and Slides
    • AWS Well-Architected Framework
    • Facebook – Running BGP in the Data Center at Scale
    • Microsoft – Experiences with BGP in Large Scale Data Centers
    • Palo Alto PCNSE Study Guide
  • IP Calculator
  • Links
  • Contact

Categories

  • AI
  • Business Management
  • Cloud
  • Code
  • Data Center
  • Laptops & Desktops
  • Load Balancing
  • Routing & Switching
  • Security
  • Servers
  • Uncategorized
  • VOIP
  • Wireless

Tags

Active Directory (AD) AWS Azure Best Practices BGP Certificates Cisco Cisco ACI Cisco ASA Cisco ASR Cisco Catalyst Cisco CLI Cisco ISE Cisco Nexus Cisco Stack DDOS Design DNS EIGRP F5 HTTP(S) IP Addressing and Subnetting Microsoft IIS Microsoft SQL Microsoft Windows Netflow OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS Splunk SSL Storage Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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Troubleshooting Palo Alto Microsoft Windows F5 Cisco
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