Routing & Switching Archives - CLI Warriors

Cisco switch show MAC address lookup

In this post, we will look at how to lookup a mac address on a Cisco switch. List dynamic MAC addresses List MAC addresses on a specific VLAN Address to lookup in the table List MAC addresses on a specific interface Number of MAC addresses in the table Clear all dynamic entry type by address, …

How to backup a Cisco Router | Switch Configuration using TFTP

You can save a Cisco Router or Switch configuration over the network to a TFTP server running on your computer. Solarwinds TFTP server is available for Windows and its FREE.

Routing & Switching Security

How to encrypt all Cisco passwords

Setting the “service password-encryption” will encrypt all passwords in the show running-config Ex. Enable and Line clear text passwords. Passwords are encrypted with the MD5 hashing algorithm. Before applying: service password-encryption Enable: service password-encryption Verification:

Routing & Switching

Basic EIGRP Configuration | Cisco Router

Enhanced Interior Gateway Routing Protocol (EIGRP) is an open-standard distance vector protocol developed by Cisco. Routers running EIGRP must form neighbors before they can begin to exchange routes. The multicast address for EIGRP communication is over 224.0.0.10.

Routing & Switching

Configure LACP EtherChannel on Cisco Switch

In this lab we will look at the minimum configuration required to build a redundant and high speed link between two Cisco switches. Configuration Depending on your requirements you will need to use either active or passive. Verification

Routing & Switching Security

Configure Telnet on Cisco Router

Telnet allows you to remotely manage a Cisco router over a TCP connection. Keep in mind that telnet is not secure and everything is transmitted in clear-text.

Routing & Switching Security

Configure Enable Secret / Console Password and Timeout

In this lab we will configure the enable secret and console passwords to help secure your routers and switches from unauthorized access. We will also configure the console timeout to 10 minutes. ConfigurationEnable Secret Password Console password & Timeout Verification

Routing & Switching Security

Configure Standard ACL Numbered | Cisco Router

You can use a Standard Access Control List to allow or deny traffic to a host, network, or any host. In our example below we will deny traffic from the 20.20.20.0/24 to the 10.10.10.0/24 network Topology used: Router-on-a-stick Configuration VerificationOur pings begin to drop from PC-2 to PC-1 after applying the ACL to interface Gi0/0.20

Routing & Switching

Basic OSPF Configuration | Cisco Router

In this lab we will configure the Open Shortest Path First routing protocol (OSPF) between two routers in the same area. With OSPF you must use a wildcard mask in your network statements as shown below. CIDR Information OSPF Configuration Verification From the output above we can see that R2 is the Designated Router (DR) …

RIPv2 Configuration | Cisco Router

RIP (Routing Information Protocol) is a distance vector protocol which uses Hop Counts (Max 15 hops) as a routing Metric. Default RIPv2 Timers Update – 30 Sec Invalid – 180 Sec Hold Down – 180 Sec Flush – 240 Sec Admin Distance – 120 UDP Port – 520 Authentication – MD5 & Plain Multicast Address …

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Routing & Switching Archives - CLI Warriors

Cisco switch show MAC address lookup

How to backup a Cisco Router | Switch Configuration using TFTP

How to encrypt all Cisco passwords

Basic EIGRP Configuration | Cisco Router

Configure LACP EtherChannel on Cisco Switch

Configure Telnet on Cisco Router

Configure Enable Secret / Console Password and Timeout

Configure Standard ACL Numbered | Cisco Router

Basic OSPF Configuration | Cisco Router

RIPv2 Configuration | Cisco Router

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