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Aerohive Configuration Guide: RADIUS Authentication | 2
Aerohive Configuration Guide RADIUS Authentication Aerohive Configuration Guide: RADIUS Authentication | 2 Copyright © 2012 Aerohive Networks, Inc. All rights reserved Aerohive Networks, Inc. 330 Gibraltar Drive Sunnyvale, CA 94089 P/N 330068-03, Rev. A To learn more about Aerohive products visit www.aerohive.com/techdocs Aerohive Networks, Inc. Aerohive Configuration Guide: RADIUS Authentication | 3 Contents Contents ...................................................................................................................................................................................................................... 3 IEEE 802.1X Primer................................................................................................................................................................................................... 4 Example 1: Single Site Authentication .................................................................................................................................................................... 6 Step 1: Configuring the Network Policy ..............................................................................................................................................................7 Step 2: Configuring the Interface and User Access .........................................................................................................................................7 Step 3: Uploading the Configuration and Certificates .................................................................................................................................... -
Evaluating Lora Physical As a Radio Link Technology for Use in a Remote-Controlled Electric Switch System for a Network Bridge
Evaluating LoRa Physical as a Radio Link Technology for use in a Remote-Controlled Electric Switch System for a Network Bridge Radio-Node Abdullahi Aden Hassan / Rasmus Karlsson Källqvist KTH ROYAL INSTITUTE OF TECHNOLOGY ELECTRICAL ENGINEERING AND COMPUTER SCIENCE Acknowledgments We would like to thank our academic mentor Anders Västberg for helping us with the process of writing and carrying through this degree project, answering all of our questions, and for proof reading this report. We would like to thank Amin Azari for showing genuine interest in our project and for answering some math questions we had when calculating the radio link budget, and for discovering that the formula in a book we were using had a printing error which was initially causing our results to be wrong. Thank you to fellow students Michael Henriksson and Sebastian Kullengren for a thorough opposition to this report and for much helpful feedback in keeping the text readable and scientific. Thank you to Björn Pehrson for representing AMPRNet Sweden and giving us the opportunity to work on this project, financing the system prototype and for giving helpful feedback. Finally, we would like to thank program director Bengt Molin for teaching us much of what we know of embedded systems and for lending us equipment used in the development of the hardware prototype. i Abstract This report explores the design of a system for remotely switching electronics on and off within a range of at least 15 km, to be used with battery driven radio nodes for outdoor Wi-Fi network bridging. The application of the network bridges are connecting to remote networks, should Internet infrastructure fail during an emergency. -
Internet Protocol Suite
InternetInternet ProtocolProtocol SuiteSuite Srinidhi Varadarajan InternetInternet ProtocolProtocol Suite:Suite: TransportTransport • TCP: Transmission Control Protocol • Byte stream transfer • Reliable, connection-oriented service • Point-to-point (one-to-one) service only • UDP: User Datagram Protocol • Unreliable (“best effort”) datagram service • Point-to-point, multicast (one-to-many), and • broadcast (one-to-all) InternetInternet ProtocolProtocol Suite:Suite: NetworkNetwork z IP: Internet Protocol – Unreliable service – Performs routing – Supported by routing protocols, • e.g. RIP, IS-IS, • OSPF, IGP, and BGP z ICMP: Internet Control Message Protocol – Used by IP (primarily) to exchange error and control messages with other nodes z IGMP: Internet Group Management Protocol – Used for controlling multicast (one-to-many transmission) for UDP datagrams InternetInternet ProtocolProtocol Suite:Suite: DataData LinkLink z ARP: Address Resolution Protocol – Translates from an IP (network) address to a network interface (hardware) address, e.g. IP address-to-Ethernet address or IP address-to- FDDI address z RARP: Reverse Address Resolution Protocol – Translates from a network interface (hardware) address to an IP (network) address AddressAddress ResolutionResolution ProtocolProtocol (ARP)(ARP) ARP Query What is the Ethernet Address of 130.245.20.2 Ethernet ARP Response IP Source 0A:03:23:65:09:FB IP Destination IP: 130.245.20.1 IP: 130.245.20.2 Ethernet: 0A:03:21:60:09:FA Ethernet: 0A:03:23:65:09:FB z Maps IP addresses to Ethernet Addresses -
Domain Name System System Work?
What is the DNS? - how it works Isaac Maposa | Dev Anand Teelucksingh | Beran Gillen Community Onboarding Program | 11 March 2017 Agenda 1 2 3 What is the Domain Structure of the How does the Name System? Domain Name Domain Name System System Work? 4 5 6 Who makes the Stakeholders in the Engage with ICANN Domain Name Domain Name ??? System Work? System. | 2 What is the Domain Name System (DNS)? The Internet, what is it..? ● The Internet is a network of networks that interconnects devices to exchange information. ● In order to “talk” to each other, all of these devices must have a unique numerical address called an Internet Protocol address or IP Address. An example of an IP address is 94.127.53.132 ● When you visit a website from your browser, you are requesting the website from your device’s IP address to the web server’s IP address. ● However, you don’t type in the ip address of the web server, rather the domain name of for example www.google.com ● In so doing, you have queried the DNS. ● So what is this DNS???? | 4 What is the Domain Name System? ● The Domain Name System or DNS overcomes this problem of remembering IP addresses by mapping domain names to IP addresses. ● While this sounds like a phone book, it is not a centralised database. ● The DNS is a distributed database across a hierarchy of networks of servers and provide ways for devices and software (like browsers and email) to query the DNS to get an IP address. ● Domain names must be unique. -
NAT-Aware Public-Private GSLB Configuration Avi Networks — Technical Reference (17.2)
Page 1 of 5 NAT-aware Public-Private GSLB Configuration Avi Networks — Technical Reference (17.2) NAT-aware Public-Private GSLB Configuration view online An Avi GSLB configuration can serve clients from a mixture of public and private networks. Introduction Typically, the VIP configured in a local virtual service (configured as a GSLB pool member) is a private IP address. But this IP address may not always be reachable by the client. For example, a user on a laptop could come in via the corporate intranet or VPN, but also directly from the public Internet. In the former case, the source IP address would be an intranet private IP address. In the latter case, it would be a public IP address. Note that, with resolvers (LDNS) in the middle and no support for extension mechanism for DNS (EDNS), this may not be as simple. Note ? If EDNS processing is enabled, the client's IP address is found within the ECS option. For more information, refer to the Extension Mechanisms for DNS Client Subnet Option Insertion article. The source being a certain set of resolver IP addresses could indicate that the client is coming in from a private network, and another set of IP addresses could indicate that the client is coming in from a public network. How It Works Client DNS requests coming in from within the intranet have the private IP served in the A record, and requests from outside are served the public IP address. Please note that datapath health monitoring is performed only against the private IP address. -
Ipv6 Addresses
56982_CH04II 12/12/97 3:34 PM Page 57 CHAPTER 44 IPv6 Addresses As we already saw in Chapter 1 (Section 1.2.1), the main innovation of IPv6 addresses lies in their size: 128 bits! With 128 bits, 2128 addresses are available, which is ap- proximately 1038 addresses or, more exactly, 340.282.366.920.938.463.463.374.607.431.768.211.456 addresses1. If we estimate that the earth’s surface is 511.263.971.197.990 square meters, the result is that 655.570.793.348.866.943.898.599 IPv6 addresses will be available for each square meter of earth’s surface—a number that would be sufficient considering future colo- nization of other celestial bodies! On this subject, we suggest that people seeking good hu- mor read RFC 1607, “A View From The 21st Century,” 2 which presents a “retrospective” analysis written between 2020 and 2023 on choices made by the IPv6 protocol de- signers. 56982_CH04II 12/12/97 3:34 PM Page 58 58 Chapter Four 4.1 The Addressing Space IPv6 designers decided to subdivide the IPv6 addressing space on the ba- sis of the value assumed by leading bits in the address; the variable-length field comprising these leading bits is called the Format Prefix (FP)3. The allocation scheme adopted is shown in Table 4-1. Table 4-1 Allocation Prefix (binary) Fraction of Address Space Allocation of the Reserved 0000 0000 1/256 IPv6 addressing space Unassigned 0000 0001 1/256 Reserved for NSAP 0000 001 1/128 addresses Reserved for IPX 0000 010 1/128 addresses Unassigned 0000 011 1/128 Unassigned 0000 1 1/32 Unassigned 0001 1/16 Aggregatable global 001 -
Sistemas Informáticos Curso 2005-06 Sistema De Autoconfiguración Para
Sistemas Informáticos Curso 2005-06 Sistema de Autoconfiguración para Redes Ad Hoc Miguel Ángel Tolosa Diosdado Adam Ameziane Dirigido por: Profª. Marta López Fernández Dpto. Sistemas Informáticos y Programación Grupo de Análisis, Seguridad y Sistemas (GASS) Facultad de Informática Universidad Complutense de Madrid AGRADECIMIENTOS: Queremos agradecer la dedicación de la profesora Marta López Fernández, Directora del presente Proyecto de Sistemas Informáticos, y del resto de integrantes del Grupo de Análisis, Seguridad y Sistemas (GASS) del Departamento de Sistemas Informáticos y Programación de la Universidad Complutense de Madrid, y de forma muy especial a Fabio Mesquita Buiati y a Javier García Villalba, Miembro y Director del citado Grupo, respectivamente, por el asesoramiento y las facilidades proporcionadas para el buen término de este Proyecto. 2 Índice RESUMEN ....................................................................................................................... 5 ABSTRACT ..................................................................................................................... 6 PALABRAS CLAVE....................................................................................................... 7 1-INTRODUCCIÓN....................................................................................................... 8 1.1- MOTIVACIÓN ......................................................................................................... 8 1.2 – OBJETIVO ............................................................................................................. -
Changing the IP Address Scope of the Media Gateway to Allow Use of Customer-Owned Routers
Changing the IP Address scope of the media gateway to allow use of customer-owned routers This method does not require making any changes to the customer-owned router and can be completed by accessing the Media Gateway’s router and the powercycling of devices. The HomeConnect functionality may not be available on some devices when using this method. HomeConnect functionality may not work correctly using this method and devices connected to the Gateway’s Ethernet ports or wireless may not be able to communicate with devices connected to the customer’s router. Description The wireless can be enabled on both the Ultra TV Media Gateway and the customer- owned router at the same time. The DHCP is enabled on the customer-owned router and the Media Gateway, and both have a separate IP address scope to assign to connected devices. The customer- owned router is connected to the “1” Ethernet port of the Gateway using the Internet/WAN port on the router. Example This image shows how devices are connected to the Media Gateway and the customer-owned router. Configuring the Gateway 1. Access the Media Gateway: a. Enter “192.168.0.1” into the address bar of any web browser. b. Press the “Enter” key. c. Enter “technician” in the User Name field. d. Enter “WOWpass” in the Password field. If the user name and password combination do not work, the customer must call WOW! to have the password reset. e. Click the “Apply” button. 2. Click the “LAN Setup” tab. 3. Enter “192.168.2.1” in the IP Address field. -
An Internet Protocol (IP) Address Is a Numerical Label That Is
Computer Communication Networks Lecture No. 5 Computer Network Lectures IP address An Internet Protocol (IP) address is a numerical label that is assigned to devices participating in a computer network, that uses the Internet Protocol for communication between its nodes. An IP address serves two principal functions: 1- host or network interface identification 2- location addressing. Its role has been characterized as follows: "A name indicates what we seek. An address indicates where it is. A route indicates how to get there." The designers of TCP/IP defined an IP address as a 32-bit number and this system, known as Internet Protocol Version 4 or IPv4, is still in use today. However, due to the enormous growth of the Internet and the resulting depletion of available addresses, a new addressing system (IPv6), using 128 bits for the address, was developed in 1995. Although IP addresses are stored as binary numbers, they are usually displayed in human-readable notations, such as 208.77.188.166 (for IPv4), and 2001:db8:0:1234:0:567:1:1 (for IPv6). The Internet Protocol also routes data packets between networks; IP addresses specify the locations of the source and destination nodes in the topology of the routing system. For this purpose, some of the bits in an IP address are used to designate a sub network. As the development of private networks raised the threat of IPv4 address exhaustion, RFC 1918 set aside a group of private address spaces that may be used by anyone on private networks. They are often used with network address translators to connect to the global public Internet. -
Mind the Uppercase Letters
Integration of APRS Network with SDI Tomasz Kubik1,2, Wojciech Penar1 1 Wroclaw University of Technology 2 Wroclaw University of Environmental and Life Sciences Abstract. From the point of view of large information systems designers the most important thing is a certain abstraction enabling integration of heterogeneous solutions. Abstraction is associated with the standardization of protocols and interfaces of appropriate services. Behind this façade any device or sensor system may be hidden, even humans recording their measurements. This study presents selected topics and details related to two families of standards developed by OGC: OpenLS and SWE. It also dis- cusses the technical details of a solution built to intercept radio messages broadcast in the APRS network with telemetric information and weather conditions as payload. The basic assumptions and objectives of a prototype system that integrates elements of the APRS network and SWE are given. Keywords: SWE, OpenLS, APRS, SDI, web services 1. Introduction Modern measuring devices are no longer seen as tools for qualitative and quantitative measurements only. They have become parts of highly special- ized solutions, used for data acquisition and post-processing, offering hardware and software interfaces for communication. In the construction of these solutions the latest technologies from various fields are employed, including optics, precision mechanics, satellite and information technolo- gies. Thanks to the Internet and mobile technologies, several architectural and communication barriers caused by the wiring and placement of the sensors have been broken. Only recently the LBS (Location-Based Services) entered the field of IT. These are information services, available from mo- bile devices via mobile networks, giving possibility of utilization of a mobile This work was supported in part by the Polish Ministry of Science and Higher Edu- cation with funds for research for the years 2010-2013. -
TCP/IP Protocol Suite
TCP/IP Protocol Suite Marshal Miller Chris Chase Robert W. Taylor (Director of Information Processing Techniques Office at ARPA 1965-1969) "For each of these three terminals, I had three different sets of user commands. So if I was talking online with someone at S.D.C. and I wanted to talk to someone I knew at Berkeley or M.I.T. about this, I had to get up from the S.D.C. terminal, go over and log into the other terminal and get in touch with them. I said, oh, man, it's obvious what to do: If you have these three terminals, there ought to be one terminal that goes anywhere you want to go where you have interactive computing. That idea is the ARPANET." – New York Times Interview: December 20, 1999 Overview • Terminology • History • Technical Details: – TCP – IP – Related Protocols • Physical Media • Social Implications • Economic Impact 3 Terminology • Protocol – A set of rules outlining the format to be used for communication between systems • Domain Name System (DNS) – Converts an Internet domain into an IP address • Router – A computer or software package used in packet switched networks to look at the source and destination addresses, and decide where to send the packets • Uniform Resource Indicators – Uniform Resource Location (URL) • How to find the resource: HTTP, FTP, Telnet – Uniform Resource Names (URN) • What the resource is: Not as common as URL 4 History: Pre-TCP/IP • Networks existed and information could be transferred within • Because of differences in network implementation communication between networks different for each application • Need for unification in protocols connecting networks 5 History: TCP/IP Development • 1968: Plans develop for using Interface Message Processors (IMPs) • Dec. -
Linux Networking-HOWTO
Linux Networking−HOWTO: Linux Networking−HOWTO: Table of Contents Linux Networking−HOWTO:............................................................................................................................1 Author: Joshua Drake poet@linuxports.com...........................................................................................1 1.Introduction...........................................................................................................................................1 2.Document History.................................................................................................................................1 3.How to use this HOWTO......................................................................................................................1 4.General Information about Linux Networking.....................................................................................1 5.Generic Network Configuration Information.......................................................................................1 6.Ethernet Information.............................................................................................................................2 7.IP Related Information..........................................................................................................................2 8.Advanced Networking with Kernel 2.2................................................................................................2 9.Using common PC hardware................................................................................................................2