As you probably have heard already, a new OpenSSL vulnerability (called “Heartbleed” ) was recently found. A bounds checking bug made it possible for an attacker to exploit the SSL heartbeat functionality to uncover sensitive data from the web server process memory. xkcd’s Randall Munroe did a wonderful job explaining it here: http://xkcd.com/1354/ While indeni […]
In today’s business networks, the demand for high bandwidth throughput, a flexible network and easy maintenance is critical. Metro Ethernet Area Network (MAN) comes as a simple and familiar technology, derived from local area networks (LAN), and used as a carrier link (WAN) by ISPs for enterprises. The advantages of Metro Ethernet are enormous. From […]
MPLS (Multiprotocol Label Switching) is a data forwarding method using labels instead of IP addresses. It is a simple, secure and fast technology that can encapsulate and transport many kinds of protocols (Ethernet, ATM, Frame-Relay, etc.), hence the name Multiprotocol. Also, there is visibility of IP addressing, as MPLS operates both in Layer 2 and […]
Many of you have problems finding a comprehensive guide to load balancing for EIGRP. Using routing capabilities is a must in today’s evolving networks. In an enterprise environment, using EIGRP (Enhanced Interior Gateway Protocol) is your best choice because EIGRP is fast and agile. Here is brief recap of EIGRP attributes.
Not a week goes by without someone asking me – “So, what’s indeni?”. Those who know me well, know that when I notice something repeating itself, I try to find a permanent solution for it. So what’s a better solution than writing a post about it? When we first started off working on what today […]
So what is BGP? In this series of posts I will be explaining the main principles of BGP. BGP–Border Gateway Protocol–is the de facto core routing protocol of the Internet. It operates by exchanging routes among Internet Autonomous Systems, and it is considered a path vector protocol. Routing is performed by shortest path possible and according […]
Network summarization is rather simple to setup, yet may be potent if not done properly. I wanted to share some of my insight with you regarding this topic. We all know that some of the most popular dynamic routing protocols would summarize network automatically for you if you configured them to, for example, EIGRP and […]
For those of you who don’t know what HSRP is, here is a quick explanation (for those who do, just skip to the 2nd paragraph). HSRP is ‘Hot Standby Router Protocol’. It is a Cisco-proprietary redundancy protocol for establishing a fault-tolerant default gateway–basically, redundancy for routers. It is crucial for all devices communicating with routers […]