Technology - Router Switch Blog

BGP Routing Protocol Tips You Need to Know

Posted on February 5, 2013 by RouterSwitch Tech | 0 Comments

Perhaps you are thinking that you could care less about some routing protocol called BGP. Could it possibly have anything to do with your everyday life? The answer is yes. BGP is the routing protocol of the Internet. BGP is…

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…

How to Configure IGRP (Interior Gateway Routing Protocol)?

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

Interior Gateway Routing Protocol (IGRP) is a distance vector interior routing protocol (IGP) invented by Cisco. It is used by routers to exchange routing data within an autonomous system. IGRP is a proprietary protocol. IGRP was created in part to…

CCNP SWITCH 642-813 Guide: Configuring IP SLA

Posted on January 25, 2013 by RouterSwitch Tech | 0 Comments

A key topic on the CCNP SWITCH exam, the Cisco IOS IP Service Level Agreement (IP SLA) feature, can be used to gather realistic information about how specific types of traffic are being handled end-to-end across a network. In this…

How to Use Cisco IP SLA to Manipulate Route Forwarding Decisions?

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

Cisco’s IP SLAs are one of the most versatile tools we have as network engineers. You can monitor various things from TCP connection times to device availability via ICMP ping. (See here for a more exhaustive list.) With endless possibilities comes great fun!…

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…

How to Configure Cisco IP SLA?

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

Cisco IOS IP SLA (Service Level Agreement) is a tool that can be used to generate synthetic network traffic used for network management. SLA can be configured to send TCP connects, ICMP or even UDP packets. These packets can be…

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 Basic NAT with Overloading?

Posted on January 17, 2013 by RouterSwitch Tech | 0 Comments

Here’s a lab that might be helpful for those working towards the CCNA examination. We have a simple topology consisting of three routers. R8 will simply be used as a host on our “internal” network and R7 will be used…

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…

To Recognize Cisco Catalyst 6500 Series 8-Port 10 Gigabit Ethernet Module

Posted on January 14, 2013 by RouterSwitch Tech | 0 Comments

Cisco’s new 8-port 10 Gigabit Ethernet module doubles the 10 Gigabit Ethernet density on the Catalyst 6500 Series, providing up to 64 ports of 10 Gigabit Ethernet in a single Catalyst 6500 chassis. It is ideal for deployment in the…

How to Set up NAT Using the Cisco IOS?

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

Network address translation (NAT) is one of those rare information technology buzzwords that do exactly what its name implies. In this case, it translates one network address into another network address. The most popular use for NAT is to connect…

How to Configure Dual ISP on Cisco ASA 5505?

Posted on January 8, 2013 by RouterSwitch Tech | 0 Comments

This is article that explains how to configure dual ISPs on a Cisco ASA 5505 firewall for redundancy purpose. Suppose we have a primary high-speed ISP connection, and a cheaper DSL line connected to a Secondary ISP. Normally all of our traffic should…

How to Configure NAT in Cisco IOS?

Posted on January 8, 2013 by RouterSwitch Tech | 0 Comments

NAT (Network Address Translation), it in simple terms translates an IP address into another. Network Address Translation is of different types like Static NAT (One to One) Dynamic NAT (Many to Many) Overloading (Many to One) The main purpose of…

Basic Information of Configuring HSRP on a Cisco Router

Posted on December 31, 2012 by RouterSwitch Tech | 0 Comments

Hot Standby Routing Protocol or HSRP, is a Cisco proprietary protocol that allows two or more routers to work together to represent a single IP address for a particular network. HSRP, as well as Virtual Route Redundancy Protocol (VRRP) are…

Cisco Ushers in the Next Generation in Enterprise Class Wi-Fi Connectivity

Posted on December 26, 2012 by RouterSwitch Tech | 0 Comments

Cisco unveiled the Aironet Access Point 2600 and Aironet Access Point 1600. They join the Aironet Access Point 3600 (launched earlier this year) to make up Cisco’s second generation “G2” enterprise class 802.11n Cisco Aironet Access Points, a key component of Cisco’s Unified Access solution: one…

What the Main Difference between HSRP, VRRP and GLBP Protocols

Posted on December 26, 2012 by RouterSwitch Tech | 0 Comments

In this article we will cover comparison of various first hop redundancy protocols. HSRP, VRRP and GLBP are the main three first hop redundancy protocols. In order to take the right decision for your network you should know the basics regarding all…

Cisco Catalyst 6500 vs. Cisco Nexus 7000 Switch

Posted on December 21, 2012 by RouterSwitch Tech | 0 Comments

Campus vs. data center applications can determine which Cisco Ethernet switch to use These days, Cisco network administrators are a nation divided. It is not enough for the network admin to say he works in a Cisco shop. The admin should also…