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Switched Port Analyzer (SPAN and RSPAN)

By JMCristobal
March 9, 2022
SPAN (Switched Port Analyzer) is a feature that allows copying traffic from a source port or switch vlan to a destination port. In this article, we will discuss: ...
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Enterprise Infrastructure

Configure AAA Switch Cisco IOS

By JMCristobal
March 9, 2022
AAA – Authentication, Authorization, AccountingAuthentication: Who is the user?Authorization: What can the user do?Accounting: What did the user do? Cisco switches use two protocols for communication with AAA ...
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Enterprise Infrastructure

Configuring Port Security in Cisco Switch IOS

By JMCristobal
March 9, 2022
This feature controls the number of MAC addresses per port.The maximum number of MAC addresses per port can be configured (default is 1).The MAC addresses can be configured ...
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Security

Configure SNMP on ASA Firewall

By JMCristobal
March 9, 2022
SNMPv2 Specify the recipient of an SNMP notification, indicate the interface from which traps are sent, and identify the name and IP address of the NMS or SNMP ...
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Enterprise Infrastructure

Configure Storm Control in Cisco IOS

By JMCristobal
March 9, 2022
Storm control is a feature used to remedy broadcast, multicast, and unicast unknown overruns in the LAN network. Thresholds are configured, and action is taken if these thresholds ...
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Enterprise Infrastructure

Configuring SNMP on Cisco IOS

By JMCristobal
March 9, 2022
Simple Network Management Protocol (SNMP) Configuring SNMPv2C  The following commands are used to configure SNMPv2C: Switch(config)# snmp-server host host-address [ informs] version 2c community-string Switch(config)# snmp-server community string ...
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Enterprise Infrastructure

Configuring NTP on Cisco IOS

By JMCristobal
February 23, 2022
Network Time Protocol (NTP) is used for centralized synchronization of the date and time of devices. It works over UDP port 123.  NTP operation modes: Server: the device ...
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Security

Upgrade FMCs in a High Availability

By JMCristobal
February 17, 2022
Equipment to be used: FMC 2600 with version 6.4.0.10 The objective is to upgrade the FMC in HA to version 6.6.4 Before you begin, I recommend that you ...
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Devnet Linux

Install Visual Studio Code on Ubuntu 20.04

By JMCristobal
February 17, 2022
Visual Studio Code is a source code editor developed by Microsoft. For the installation, we will use a Snap package. Snaps are application packages that are easy to ...
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Devnet Linux

Installing Ubuntu on VMWare Fusion

By JMCristobal
February 16, 2022
Let’s see a simple guide to creating a virtual machine with Ubuntu operating system in VMware Fusion. Open the program VMware Fusion File > New Click on Continue ...
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Enterprise Infrastructure

Cisco IOS commands

By JMCristobal
February 15, 2022
Commands Used to Monitor and Manipulate the CAM Table TaskDisplay all MAC addresses learned on a specific interfaceSwitch# show mac address-table dynamic interface type number Display the current ...
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Enterprise Infrastructure

Configure Syslog on Cisco IOS

By JMCristobal
February 11, 2022
Syslog is a standard for logging messages describing important events on network equipment. These events are used for auditing to know what, when, and how the event happened. ...
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Data Center

Cisco ACI CLI Commands (APIC, Leaf/Spine)

By JMCristobal
October 30, 2021
Connect to Leaf from APICbashattach [node-name]ssh user@[node-name] Endpoint, EPG, BD form APIC<show ip interface bridge-domain [name_bd]><show epg [epg-name] [detail]> Ping from Leafiping [-dDFLnqRrv] [-V vrf] [-c count] [-i ...
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Enterprise Infrastructure

Configure DHCP in router cisco

By JMCristobal
October 22, 2021
DHCP (Dynamic Host Configuration Protocol)  The DHCP protocol allows clients to dynamically configure network parameters without the need for a manual configuration process.  Dynamically assigns an IP address to ...
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Security

Configuring OSPFv2 on ASA Firewall

By JMCristobal
October 15, 2021
Create an OSPF routing process: asa-jmcristobal(config)# router ospf process_id Define the IP addresses on which OSPF runs and the area ID for that interface: asa-jmcristobal(config)# network ip_address mask ...
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