Cisco USB Console Port
Due to the high prices of the USB To Serial cable converter used to connect to the console cable of CISCO devices, CISCO has recently added a new USB console port to its products, that uses a cheap USB cable,…
Category: Reviews
Cisco Router with Cisco ASA for Internet Access
A classic network scenario for many enterprises is to have a Cisco border router for internet access and a Cisco ASA firewall behind this router for protection of the internal LAN or for building a DMZ network. This scenario is…
Site to Site VPN between ASA Firewall & Cisco Router
Here, in this article we will tell that how to configure Site-to-Site IPSEC VPN between a Cisco IOS Router and ASA Firewall. ASA configuration is not much different from Cisco IOS with regards to IPSEC VPN since the fundamental concepts…
Networks in 2020: More Traffic, Less Energy
The GreenTouch industry consortium says new technologies could cut power consumption by 90 percent. Networks could use far less energy by 2020 even though they’ll be carrying much more traffic, an industry group says. The GreenTouch consortium, formed in 2010 to speed…
DHCP Relay on the Nexus7000/NXOS Vs. IP Helper on the 6500/IoS
IP helper (now DHCP relay) works differently on the Nexus 7000 than on the Cisco 6500. The N7K imposes a VACL to filter local DHCP broadcast traffic, under the assumption that you’d be using DHCP relay when there is no local DHCP…
How to Configure site-to-site IPSEC VPN on Cisco ASA using IKEv2?
The scenario of configuring site-to-site VPN between two Cisco Adaptive Security Appliances is often used by companies that have more than one geographical location sharing the same resources, documents, servers, etc. The Cisco ASA is often used as VPN terminator,…
How to Troubleshoot and Verifying OSPF Configuration?
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…
EIGRP on a Cisco ASA Firewall Configuration
The Cisco Adaptive Security Appliance is an integrated security equipment that can perform a variety of functions like firewall, intrusion prevention, VPN, content security, unified communications, and remote access. Among these functions, the ASA can also perform routing using popular…
What is Cisco ASA CX Security Module?
The new series of Cisco ASA devices (ASA 5500-X models which include 5512-X, 5515-X, 5525-X, 5545-X, 5555-X and 5585-X) have the capabilities to support Next Generation Firewall Security Services. They support these security services as cloud-based services (such as Cloud…
How to Set up a Cisco ASA 5505 Firewall with a Wireless Router?
This article is written by Lauren Malhoit talking about setting up a Cisco ASA 5505 firewall with a wireless router focuses on things you might encounter when doing the setup at home. The following detailed story is Lauren Malhoit’s experience…
Cisco ASA5510 Vs ASA5512-X or Cisco 5515-X
Cisco released its announcement of EoL and EoS dates for the Cisco ASA 5500 Adaptive Security Appliances, including Cisco ASA 5550, Cisco ASA 5540, Cisco ASA 5520, Cisco ASA 5510 and Cisco ASA 5500 Series Accessories on Mar 18, 2013.…
How to Reset a Cisco Router Back to Factory Defaults?
There are two main methods to return a Cisco router to its original factory defaults. These two methods are described below. First Method This method uses the config-register 0×2102 command in global configuration mode. First check the configuration register on the router…
Use Layer-3 Switch or Router?
In general, you want to use a router when most of the time the device does routing. Likewise, you want to use a switch when when most of the time the device does switching. This statement becomes more apparent when…
Most Frequent Interview Questions for Network Engineers
In the last article we listed 100 interview questions for network engineers. May be some of them are not often asked. Again, here we gathered most frequently asked interview questions for network engineers in most of the multinational companies in India. Most Frequent Interview Questions for…
Cisco, Google Top Greenpeace IT Ranking 2013
In the middle and late of April (April 22 is the Earth Day) is every year, Greenpeace will release the latest version of its Cool IT Leaderboard, which remind us of protecting our world by possible ways. Who will be…
Secure SNMP in Cisco Switches and Routers
This article focus on the ways how we can secure SNMP access in Cisco Switches and Routers Simple Network Management Protocol (SNMP) uses the default UDP port 161 for general SNMP messages and UDP port 162 for SNMP trap messages. SNMP is a service used to perform network…
Top 100 Interview Questions for Network Engineers
What interview questions for a network engineer is going to prepare? Maybe we can list a lot of basic questions, such as the administrative distance of EIGRP, eBGP, iBGP, what a 3-way handshake is in TCP, DHCP features, a stateful…
Main Differences between Lines of Cisco 3750 Series Switches
What are the MAIN differences between Cisco’s highly successful lines of 3750 series switches? There is a brief overview of the biggest differences between the 3750 V2, 3750-E, and the 3750-X. This document does not cover the 3750 (V1) which…
How to Configure SNMP on Cisco IOS-based Router/Switch?
SNMP is an application-layer protocol that provides a message format for communication between SNMP managers and agents. The SNMP manager is the system used to control and monitors the activities of network hosts using SNMP; this is also called Network Management Station (NMS). This article explains how…
Cisco 3750 Stacking Configuration
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
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…
How to Connect to Cisco ASA?
Although Cisco ASA by default ships with a configuration that already includes 2 preconfigured networks, (Outside network and Inside network configured to 192.168.1.0 subnet with configured DHCP server), which provides an easy way for establishing initial connection over Ethernet, there might be…
