Virtual private network explained (09/10/2010)
(...) Simply because most router implementations sustain software-defined tunnel interface, consumer-provisioned VPNs regularly include just a arranged of tunnels more than which conservative routing protocols run. For instance, Building blocks: depending on whether the PPVPN runs in layer two or layer three, the structure blocks expressed below may be L2 only, L3 simply, or perhaps a blend of the two. RFC 4026 generalized these expressions to cover L2 and L3 VPNs; they had been launched in RFC 2547 as Customer edge gadget (CE), Provider edge gadget (PE), and Provider gadget (P) Kinds of VPN services This component deals with the kinds of VPN presently regarded as dynamic in the IETF; a number of historical names experienced been replaced with these phrases. (...)

Multiprotocol Label Switching Label Distribution Protocol (09/01/2010)
(...) Synchronized here means that the local label bindings have been sent over the Label Distribution Protocol session to the Label Distribution Protocol peer. However, when the synchronization is turned on at router A and that router has only one link to router B and no other IP connectivity to router B via another path (this means via other routers), the OSPF adjacency never comes up. OSPF waits for the Label Distribution Protocol session to come up, but the Label Distribution Protocol session cannot come up because router A cannot have the route for the Label Distribution Protocol router ID of router B in its routing table. (...)

What is better: The IGP or Label Distribution Protocol (09/01/2010)
(...) To create these LVCs, you must configure the Asynchronous Transfer Mode interfaces on the Asynchronous Transfer Mode switches and routers to be Label Switching Controlled-Asynchronous Transfer Mode (LC-Asynchronous Transfer Mode) interfaces. Each such LC-Asynchronous Transfer Mode interface must have the control virtual circuit. On routers and Asynchronous Transfer Mode switches that are running Cisco IOS, this is by default the virtual circuit /32. (...)

Multiprotocol Label Switching Virtual Private Network (09/01/2010)
(...) Path MTU Discovery and careful usage of the IP MTU and Multiprotocol Label Switching MTU commands generally get you far. Sometimes fragmentation is unavoidable, as regarding Path MTU Discovery not working because of firewalls blocking the ICMP messages needed for Path MTU Discovery to work properly. If the payload is IP traffic, the ingress PE router can fragment the IP packet before it enters the pseudowire. (...)

Importance of Virtual Private LAN services (09/01/2010)
(...) This is equivalent to for Ethernet over Multiprotocol Label Switching (EoMultiprotocol Label Switching). However, EoMultiprotocol Label Switching is a service that is point-to-point in nature, whereas VPLS emulating a LAN is point-to-multipoint in nature and therefore must support replicating broadcast and multicast frames. Finally, VPLS must perform some features that are inherent to an Ethernet switch such as MAC address learning and aging if the virtual switch will be emulated. (...)

How PCs Connect towards the Internet (08/31/2010)
(...) The two terms modulate and demodulate give the modem its name. There are several modems that are not modems at all because they function with digital signals. Among them are cable modems, which connect a PC towards the Internet using precisely the same pathways as cable television, and electronic subscriber line (DSL) modems, which send purely electronic signals more than telephone lines. (...)

How the Web Moves Information (08/31/2010)
(...) whitehouse.gov, www.ucla. (...)

How We Reach Every Other Via the Net (08/31/2010)
(...) The reason customers of AOL can communicate with individuals outside AOL is that America On the internet utilizes gateway software that translates in between various email protocols. The entire body of an email message is precisely where you kind your note. But email has moved beyond mere words to encompass the capability to enclose complex document files, graphics, seem, and video clip. (...)

How the world wide web works (08/31/2010)
(...) (Ordered any groceries on the internet lately?) And it is fulfilled other promises, but not inside the way we expected. Previously, I wrote concerning the Internet fulfilling the promise of Gutenberg, with everyone turning out to be a publisher. But I did not expect them to be known as blogs, nor that they will be as well-known as they've become. (...)

Can Class c IPs aid in solving deadlocks (08/27/2010)
(...) Let us obtain the case of an IP 112.45.78. (...)

Need TFTP Tools (07/13/2010)
(...) That’s why, if you’re already using a TFTP tool, you may want to consider using something that is able to integrate a good portion of your tools together into something known as the Engineer’s Toolset, which is highly customizable and allows you to have a control panel that is capable of reporting back important information about your system. Free tools are great, but once you’ve unlocked their potential, you need to have more visibility and better customization options. Fortunately, there are options out there, offering a complete set of network management software packages that can help you to keep on top of networking problems that always come up in a complex system. (...)

VPN Internet To Unblock Youtube Skype Facebook (06/24/2010)
(...) Although we can not 100% guarantee your data safety but probability of tracking is extremely low. These VPN solutions are commonly used by many companies all over the world. Virtual Private Network, or VPN, is a private network which with the help of public network space i. (...)

How to unblock websites with vpn worldwide (06/24/2010)
(...) This is done by creating a secured connection of 128-bit encryption through the PPPT from the local computer to the VPN servers. You can well consider the connection to be absolutely secured as the data and both the addresses of the source network and the destination are in encrypted form. It is the Internet through which the virtual connections of VPN work and get connected with the remote networks and sites. (...)

Choosing the best VPN service provider is the key to safe anonymous surfing (06/24/2010)
(...) They are facing problems related to blocking or restricting of online services like VoIP, Skype, TV streams etc. However, these problems can be solved with VPN, which is mainly used to unblock websites like Skype, Youtube, Facebook, Twitter etc. Public Wi-Fi hotspots are unsecured. (...)

Enjoy unresistricted access with VPN technology (06/24/2010)
(...) You will enjoy unrestricted access over the Internet and the best part is that you will be able to maintain your anonymity with the help of the virtual private network. If you live in a country like Saudi Arabia or China where the Government monitor all your activities over the Internet then VPN will come to your aid by helping you to unblock websites of your choice. VPN Worldwide service is compatible with either Windows or Mac. (...)

Basic Structure of the Internet (06/21/2010)
(...) From the address itself, neither you nor a computer can tell where that address is or, more importantly, how to connect to it. The routers in the Internet regional centers maintain tables to help quickly send packets to the proper address. Without such guidance, packets wander throughout the world looking for the right address. (...)

MNP: Microcom Networking Protocol Standards (06/19/2010)
(...) As with MNP Class 1, it is designed for asynchronous operation at the byte level. MNP Class 2 achieves somewhat higher efficiency and takes only about a 16 percent toll on throughput. MNP Class 3 improves on MNP2 by working synchronously instead of asynchronously. (...)

Digital Telecommunications Standards (06/19/2010)
(...) 544 Mbps 1.544 MBps T1 Digital 1.544 Mbps 1. (...)

Protocols for controlling data transmission errors (06/19/2010)
(...) If errors are to be exorcised, the two ends of the standalone connection must negotiate it themselves. They have two choices: hardware-based error correction such as MNP5, and v.42 or software protocols. (...)

Short History of the Internet (06/19/2010)
(...) suddenly seem technologically backward. In response, President Dwight D. Eisenhower launched the Advanced Research Project Agency as part of the Department of Defense in January 1958. (...)

CCITT/ITU Standards (06/11/2010)
(...) V.22bis was the first true world standard, adopted into general use in both the United States and Europe. It allows a transfer rate of 2400 bits per second at 600 baud using a technique called trellis modulation that mixes two simple kinds of modulation, quadrature and amplitude modulation. (...)

RFID TECHNOLOGY AND INFORMATION SYSYTEM SECURITY (Part I) (05/11/2010)
(...) It is, therefore, important that the security risks and the solutions for mitigating these risks be identified and appropriately dealt with. The issue of RFID and Information System Security is discussed in a three part series. In part one RFID technology is reviewed as well as the application areas and the application requirements. (...)

RFID TECHNOLOGY AND INFORMATION SYSTEM SECURITY (Part II) (05/11/2010)
(...) the effects and implications of these characteristics are considered in this paper. RFID Application Types The application types are many but the most widely used applications may be grouped as asset management, asset tracking, automated payment, and supply chain management [1]. The application type must be carefully selected with the appropriate security features in mind. (...)

Distinct advantages that bulk SMS will give you (03/10/2010)
(...) No matter whichever categories of people your target customers are, as mobile phones have become the must-haves of all types of people, reaching your target people will not become a matter of concern for you. Spam-free way of communication: If you think about another effective marketing medium like e-mail then you will find that most of the people have a tendency of ignoring email messages that come from any unknown sender, they simply consider such messages as Spam and delete them without even opening them. But, the bulk SMS is not treated in this manner, the receivers of bulk SMS messages are seen to show their interest on such messages and read them carefully. (...)

MIL STD 130 A Standard Protocol For Unique Identification (11/04/2009)
(...) These plates can be made of metal or a stiff plastic material and must be securely fastened to the item or applied directly to the item itself. The MIL STD 130 standard also requires the marking to be placed somewhere on the item where it is visible and can be easily read. The marking also has to be permanent, lasting the life of the item. (...)

SCAP (10/21/2009)
(...) Authenticated vulnerability and patch scanner: A product with the ability to scan a target system to locate and identify the presence of known software flaws and evaluate the software patch status to determine compliance with a defined patch policy using target system log-on privileges. Unauthenticated vulnerability scanner: A product with the ability to determine the presence of known software flaws by evaluating the target system over the network. Intrusion detection and prevention systems: Products that monitor systems or networks for unauthorized or malicious activities. (...)

NAS in Our Daily Lives (10/14/2009)
(...) A double NAS advantage is that it permits administrators to either consolidate or increase the infrastructure of the storage. Storage extension is virtually unrestricted as one is liberated from the restriction of storage value of individual servers and the quantity of disk they are able to maintain. Meantime, one NAS setting up is enough to substitute several file servers, which are working on their own, this consequently leads to integration. (...)

Limitations of IPv4 (01/05/2009)
(...) With more computers and devices using IP, there is a need for a simpler and more automatic configuration of addresses and other configuration settings that do not rely on the administration of a DHCP infrastructure. ■ The requirement for security at the Internet layer Private communication over a public medium such as the Internet requires cryptographic services that protect the data being sent from being viewed or modified in transit. Although a standard now exists for providing security for IPv4 packets (known as Internet Protocol security, or IPsec), this standard is optional for IPv4 and additional security solutions, some of which are proprietary, are prevalent. (...)

Features of IPv6 (01/05/2009)
(...) 4 × 1038 possible combinations, the large address space of IPv6 has been designed to allow for multiple levels of subnetting and address allocation, from the Internet backbone to the individual subnets within an organization. Even with all of the addresses currently assigned for use by hosts, plenty of addresses are available for future use. With a much larger number of available addresses, address-conservation techniques, such as the deployment of NATs, are no longer necessary. (...)

IPv6 Routing Protocols (01/05/2009)
(...) A network administrator, with knowledge of the network topology, manually builds and updates the routing table, entering all routes in the routing table. Static routers can work well for small networks, but they do not scale well to large or dynamically changing networks because they require manual administration. Static routers are not fault tolerant. (...)

NAS Caveats (11/08/2008)
(...) The monolithic nature of their databases can therefore force all traffic into a single path or device creating a performance bottleneck and recovery problem if the storage device or path is encumbered in any way. On the other hand, NAS provides the most cost-effective solution for applications that are file-oriented, contain read-only files, or which have large user bases. The architecture behind NAS within these application environments provides a scalable way for large numbers of users to obtain information quickly without encumbering the servers. (...)

Caveats for SAN (11/08/2008)
(...) I/O functions must extend into the fabric itself and operate through Fibre Channel software, storage software, and device micro-code, all being remote to the server. These new software functions encapsulated within the FC fabric (some of them user accessible and some micro-code enabled) drive the next logical caveat: management. Management of the SAN remains problematic even though new products and solutions continue to appear. (...)

The Most Common Types of Voice Messages (09/18/2008)
(...) In these instances, you can use outbound interactive voice messages to identify the right party and then automatically direct connect the call to a call center agent. These messages are very effective for renewal campaigns, credit card balance transfers, and large balance overdue payments. They help improve call center effectiveness and agent utilization by delivering warm inbound inquiries—or right-party debtors in the case of collections—to your call center staff. (...)

3G Mobile Technology (01/09/2008)
(...) Countries where 3G currently exist? 10. Pricing Concerns 11. Disadvantages 12. (...)

Fundamentals of Networking (01/04/2008)
(...) TCP: Transmission Control Protocol When using the TCP protocol in networking, you are first required to create a connection to another computer. This may seem obvious, but not all protocols require a connection, as with the UDP protocol. Once a connection is established, you can then use incoming and outgoing streams to send and receive data over the network. (...)

IPv4 vs IPv6: Comparison (11/24/2007)
(...) A DNS resolver running on a dual-stack host must be capable of resolving both IPv4 and IPv6 address types. Generally, all applications running on the dual-stack host must be capable of determining whether this host is communicating with an IPv4 or IPv6 peer. In a dual-stack network, you need to have a routing protocol that can deal with both protocols (such as IS-IS) or a routing protocol for the IPv4 network (such as OSPFv2) and another routing protocol for the IPv6 network (such as OSPFv3). (...)

IPv6 Integration Scenarios (11/24/2007)
(...) If you have a public IPv4 address and want access to the IPv6 Internet, 6to4 or a Tunnel Broker can be used. If you have NAT in place and make use of private IPv4 addresses, you may choose to use Teredo or Proto 41 Forwarding if the NAT box supports it. Organizations that have the privilege of their providers offering native IPv6 connections can have a dual-stack Internet connection. (...)