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Top 10 Cisco IOS Configuration Mistakes

Posted on August 21, 2013 by RouterSwitch Tech | 0 Comments

There are a number of common mistakes that are made while learning something about Cisco IOS. In this article it covers the largest of these misconfigurations. This list is of course subjective, but it should provide a good reference for…

Cisco IOS Versions and Naming Overview

Posted on August 6, 2013 by RouterSwitch Tech | 0 Comments

One thing that is often confusing to any network engineer (regardless of level) is the version and naming structure used by Cisco for their IOS images. Although the naming used for some of the newer devices is changing to a…

Basic HSRP Configuration Example On Cisco IOS XR

Posted on August 2, 2013 by RouterSwitch Tech | 0 Comments

The Hot Standby Router Protocol (HSRP) is an IP routing redundancy protocol designed to allow for transparent failover at the first-hop IP router. HSRP provides high network availability, because it routes IP traffic from hosts on networks without relying on…

Conditional Route Origination in OSPF Domain

Posted on July 31, 2013 by RouterSwitch Tech | 0 Comments

Cisco device uses “default-information originate” statement to generate a default route in OSPF domain. There are two ways to originate default route by using this command: 1) When you configure “default-information originate” under OSPF process without any argument after this statement, OSPF process…

Router-switch.com Uploaded a Number of Data of Popular Cisco Hardware

Posted on July 1, 2013 by RouterSwitch Tech | 0 Comments

Recently, although Cisco is suffering a trust crisis because of the Prism Project in China, for worldwide network users Cisco hardware, especially those popular items (such as Cisco 800 series, Cisco 1900, 2900, Catalyst 2960-S, Cisco 3750-X/3560X switches, Cisco ASA…

How to Configure the Voice VLAN Feature on the Catalyst 2960 and 2960-S Switches?

Posted on June 24, 2013 by RouterSwitch Tech | 0 Comments

In this article we will describe the Voice VLAN CONFIGURATION on Cisco 2960 and Catalyst 2960-S switches? You need to be clear that the term switch refers to a standalone switch and a switch stack. Voice VLAN is referred to…

Cisco Catalyst 3750-X: Redundant StackPower Cabling Information

Posted on June 19, 2013 by RouterSwitch Tech | 0 Comments

In this article we will describe the recommended cabling configurations for a StackPower stack. There are two types of StackPower cables. The cable in Figure 1 connects a Catalyst 3750-X switch to another 3750-X switch in a power stack. The cable in Figure…

How to Troubleshoot and Verifying OSPF Configuration?

Posted on May 15, 2013 by RouterSwitch Tech | 0 Comments

There are several ways you can verify and troubleshoot OSPF configuration and operation, listed below are the necessary command to do this: How to verify OSPF Configuration: Show IP route command Show IP ospf command Show ip ospf database command…

Cisco 3750 Stacking Configuration

Posted on April 20, 2013 by RouterSwitch Tech | 0 Comments

Process for replacing a failed master switch in a Cisco 3750 switch stack 1. Upgrade or downgrade the software on the replacement switch to match the rest of the switch stack The version of IOS running on the switch must…

The Way to Activate Your Cisco ASA 5500

Posted on April 18, 2013 by RouterSwitch Tech | 0 Comments

We will show the Latest to activate the Cisco ASA 5500 firewall. Detailed info you can check as follows (Taken from Cisco’s Forum) CiscoASA# show activation-key Serial Number: ************ Running Activation Key: 0x7905c844 0x2c16a53f 0xe430dd6c 0xa6e428a8 0x05260b8b Licensed features for…

EoS and EoL Announcement for the Cisco Aironet 1260 Series

Posted on April 15, 2013 by RouterSwitch Tech | 0 Comments

Cisco announces the end-of-sale and end-of-life dates for the Cisco Aironet 1260 Series. The last day to order the affected product(s) is October 7, 2013. Customers with active service contracts will continue to receive support from the Cisco Technical Assistance…

EoS and EoL Announcement for the Cisco Aironet 1140 Series & Cisco Aironet 1040 Series

Posted on April 9, 2013 by RouterSwitch Tech | 0 Comments

Cisco announces the end-of-sale and end-of-life dates for the Cisco Aironet 1140 Series & the Cisco Aironet 1040 Series. The last day to order the affected product(s) is October 1, 2013. Customers with active service contracts will continue to receive…

FAQs: Pay Attention to EOL&EOS Announcement for Cisco 1800, 2800, 3800 ISR G1

Posted on March 4, 2013 by RouterSwitch Tech | 0 Comments

Cisco announced the end-of-sale and end-of-life dates for the Cisco Integrated Services Router G1. Every Cisco lover and user knows what Cisco ISR G1 REALLY is. For its greater performance, reliability and good price, Cisco Integrated Services Routers G1 won…

What is Exact Cisco Catalyst 2960-S FlexStack?

Posted on February 22, 2013 by RouterSwitch Tech | 0 Comments

Cisco FlexStack stacking for Cisco Catalyst 2960-S Series Switches provides a true stacking solution with all switches in a FlexStack stack acting as a single switching unit. FlexStack provides a unified data plane, and single configuration for a group of stacked Cisco…

Understanding Different Router Numbers

Posted on February 1, 2013 by RouterSwitch Tech | 0 Comments

Many of the routing protocols implemented in Cisco’s IOS require a number to follow the command that enables the routing protocol in question. For example: “router eigrp 1,” “router bgp 1” or “router ospf 1”. If you’re new to routing,…

Routing Information Protocol & RIP Configuration

Posted on January 31, 2013 by RouterSwitch Tech | 0 Comments

Introduction to Routing Information Protocol (RIP) IP RIP (Routing Information Protocol) comes in two different versions: 1 and 2. Version 1 is a distance vector protocol (RFC 1058) and Version 2 is a hybrid protocol (RFCs 1721 and 1722). Routing Information Protocol Version 1…

Cisco SDN Strategy Doubles Cisco Software Business

Posted on January 29, 2013 by RouterSwitch Tech | 0 Comments

As part of its goal to surpass $100-billion companies like Hewlett Packard and IBM to become the number one IT company in the world, Cisco will double its software business in the next five years, a Cisco executive said. The…

Cisco to Acquire Israeli Mobile Startup Intucell for $475 Million

Posted on January 24, 2013 by RouterSwitch Tech | 0 Comments

Cisco announced it intends to buy Israeli software maker Intucell for about $475 million in cash to expand its mobile network management offerings. Cisco said Intucell’s software “enables mobile carriers to plan, configure, manage, optimize and heal cellular networks automatically,…

Cisco Unified Computing System: UCS Components

Posted on January 22, 2013 by RouterSwitch Tech | 0 Comments

Cisco’s Unified Computing System (UCS) provides a solution that integrates the server, network and storage resources that are used within a modern datacenter. It does this through the deployment of equipment that is managed through a single management system (UCS…

Port Forwarding a Range of Ports on Cisco IOS

Posted on January 18, 2013 by RouterSwitch Tech | 0 Comments

One question that routinely comes up in a particular forum that we frequent is “How do I port forward a range of ports?” Usually, this question is met with one of two answers: 1) you don’t, or 2) manually enter…

How to Configure Static NAT for Inbound Connections?

Posted on January 16, 2013 by RouterSwitch Tech | 0 Comments

Someone recently asked me how to configure Network Address Translation (NAT) so that computers on the Internet could access his internal Web and mail server through his Cisco router. This requires configuring a static NAT translation between the dedicated public…

What’s the Order of Operations for Cisco IOS?

Posted on January 15, 2013 by RouterSwitch Tech | 0 Comments

“What’s the order in which IOS processes the running config between the following items? ACL Distrubute list, Route map Routing Protocol Routing What im looking for is the packet flow when it arrives thru an interface for better understanding? Does…