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...
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,...
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...
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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…
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,…
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…
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…
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…
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…
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…
Configuring a Cisco Wireless Network
In this article it will walks you through how to configure a Cisco wireless network. Modern business wireless networks are complicated, so configuration of the actual network should happen after…
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…
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…
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…
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…
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