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How to Use OSPF Point-to-Multi-Point on Ethernet?
Some people point out that it looks like running OSPF in point-to-multipoint mode over Ethernet provides a rather clean solution to what is potentially a rather messy problem. They have…
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 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…
Configuring Static NAT on a Cisco ASA Security Appliance
Two of the most common forms of network address translation (NAT) are dynamic port address translation (PAT) and static NAT. PAT is the many-to-one form of NAT implemented in many…
Switchport Security & Configuration
One of the most overlooked security areas is the configuration of individual switchport security configuration. The reason may be that it requires a more granular configuration; this is because a…
NAC Appliances: Shortcut to Access Control
To share a article about NAC Appliances From http://searchnetworking.techtarget.com/feature/NAC-appliances-Shortcut-to-access-control Infrastructures that check endpoint health before network access have generated plenty of buzz, but precious little deployment. Some companies are waiting for a…
Is Cisco Bothering With “Open” EIGRP?
EIGRP is an example of an Interior Gateway Protocol (IGP), which is a network routing protocol that routers use to exchange routing information within an autonomous system (AS). EIGRP takes…
Networking Tutorial Goes to Basic PPP Configuration
This tutorial will be going over Basic Configuration of PPP (Point-to-Point Protocol). It includes Basic Configuration tasks on a router, configuring OSPF routing protocol, and configuring PPP PAP and CHAP…
When Do You Use Static Routes?
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…
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