Networking - Router Switch Blog

To Answer the Questions from Cisco Nexus 1000V InterCloud Users and Analysts

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

As part of a major cloud launch that also introduced the Nexus 6000 series and updates to our Cisco ONE portfolio, Cisco unveiled its Nexus 1000V InterCloud solution, which provides a seamless and secure extension of virtual networks from on-premises…

When Do You Use Static Routes?

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

Every router must have a route to know where to send traffic. We compare this to the post office’s predetermined ways to route your postal mail to its destination. When a router receives a packet from the LAN or the…

Guide to Order Cisco Aironet 1230AG Series Access Point

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

The Cisco Aironet 1230AG Series delivers the versatility, high capacity, security, and enterprise-class features required in more challenging RF environments. It is designed for wireless LANs in rugged environments or installations that require specialized antennas, and features dual antenna connectors…

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…