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Routing & SwitchingSecurity

Packet Capture – Cisco IOS

Certainly, here’s the packet capture procedure on Cisco IOS with specific source IPs, destination IPs, and ports incorporated into the...
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Routing & SwitchingSecurity

Palo Alto – Incomplete , Not-Applicable, Unknown-tcp/udp , Insufficient Data , tcp-rst-from-client , tcp-rst-from-server

Incomplete = The three-way TCP handshake didn’t complete. (Routing issue or destination server not listening on the port) Not-applicable =...
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Routing & Switching

Control Plane vs Data Plane

Let’s say you and I are in charge of public transportation for a small city....
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Routing & Switching

Protected: Cisco IP SLA for BGP and HSRP

There is no excerpt because this is a protected post....
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Routing & Switching

Dual Redistribution between BGP and EIGRP TAGs Prevent Loop

ISSUE:...
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Routing & Switching

Cisco 3850 Upgrade IOS (Includes Stacking)

Step 1 – Copy the new image to the 3850...
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Routing & SwitchingWireless

Copy Configs via TFTP

Routing & Switching

Netflow on a Cisco ASR1002-X for Orion

I ran into an issue with configuring Netflow on a Cisco ASR1002-X. I was getting an error when I went...
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Routing & Switching

Cisco ARP and MAC Address Aging

If you migrate from a Cisco 6500 to a Cisco Nexus switch, keep in mind that the ARP Default Timeout...
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Routing & Switching

Cisco TACACS+ Configs for ACS (Nexus, ASR_IOS-XE, IOS, ASA, Wireless)

Below are some examples pulled from a working configuration. Enjoy!...
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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 OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS snmp 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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