Gateway Networking

Sep 10, 2012Download as ppt, pdf

2 likes830 views

Gateway nodes control traffic within networks like a company or local Internet service provider and act as an entrance between networks. A gateway is a network point that allows access to another network, while host nodes are either computers of Internet users or those that serve web pages to users.

What is Gateway?
A gateway is a network point that acts as an entrance to another network.
On the Internet, a node or stopping point can be either a gateway node or a
host (end-point) node. Both the computers of Internet users and the
computers that serve pages to users are host nodes. The computers that
control traffic within your company's network or at your local Internet service
provider are gateway nodes.

The document discusses the goals and history of the Gateways East Bay STEM Network, which aims to improve STEM education outcomes across Alameda and Contra Costa counties. It outlines the Network's successes and challenges over its first four years. The meeting aims to share lessons learned, discuss partner recruitment strategies, and identify actionable steps to strengthen STEM education from early learning through college.

Basics of Gateway By Naveen KarnNaveen Karn

A gateway is a network element that connects two different networks, even if they use different protocols. It allows communication by stripping off the old protocol and assigning a new protocol. There are two main types of gateways: transport gateways connect networks using different transport protocols, while application gateways can translate between application-layer formats. Gateways expand networks but have drawbacks like inability to filter noise, slower transmission due to protocol conversion, and increased cost.

Bridges and gateways 52myrajendra

This document discusses bridges and gateways. It defines a bridge as a connecting device with its own processor and memory that uses two network interface cards to connect two portions of a network at the physical and data link layers. Bridges are used to divide large networks into smaller subnetworks and connect two local area networks. The document also defines a gateway as a device that connects two networks using different protocols by operating at all seven layers of the OSI model and translating between different frame formats and protocols. Gateways are more powerful than bridges and used to connect incompatible networks.

IBM DataPower Gateway - Common Use CasesIBM DataPower Gateway

The document discusses common use cases for IBM DataPower Gateways, which provide security, integration, control and optimized access to mobile, API, web, SOA, B2B and cloud workloads. It summarizes the gateway's capabilities for security and optimization, mobile connectivity, API management, integration and mainframe integration. Use cases include serving as a security and optimization gateway, multi-channel gateway, and securing the Bluemix platform as a service.

Cloud ComputingNaveen Karn

Cloud computing provides on-demand access to computing resources and applications from the internet. There are different deployment models including public, private, hybrid, and community clouds. The main service models are infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS). IaaS provides hardware and software infrastructure, PaaS provides development tools, and SaaS provides access to applications remotely.

PPT on Basic of GatewayNaveen Karn

Timing Analysis of a Linux-Based CAN-to-CAN GatewayMichal Sojka

This presentation reports the results of thorough analysis of timing properties of CAN-to-CAN gateway built with Linux kernel CAN subsystem. The latencies induced by this gateway are evaluated under many combinations of conditions, such as when traffic filtering is used, when the gateway is configured to modify the routed frames, when various types of load are imposed on the gateway or when the gateway is run on different kernels (both rt-preempt and vanilla are included). From the detailed results, we derive the general characteristics of the gateway. Some of the results apply not only for the special case of CAN-to-CAN routing, but also for the whole Linux networking subsystem because many mechanisms in the Linux networking stack are shared by all protocols.

Fundamental networking conceptsreachsrirams

The document discusses the fundamental networking concepts of a typical home network including subnet mask, default gateway, and DNS server. It explains that when a user enters a URL like google.com in their browser, the DNS server is queried to convert the URL to an IP address. It then describes how the subnet mask is used to determine if the destination IP is local or not, and if not, the default gateway is used to route the packet between the LAN and internet.

Web Api services using IBM DatapowerSigortam.net

This document discusses IBM DataPower and how it can be used to securely expose APIs and services. It provides an overview of DataPower's key capabilities including security, protocol support, and an application development model. Specific services that DataPower provides are discussed such as the web service proxy, XML firewall, and web application firewall. The document also covers how DataPower can implement various security features and policies to control access and traffic. Finally, it presents some high-level questions to consider when shaping an API strategy.

Smtp protocolalibefkani

Simple Mail Transfer Protocol (SMTP) is the standard protocol for sending email across the internet. SMTP was created in 1982 and uses a client-server model with user agents to prepare messages and mail transfer agents to reliably transfer messages between servers. An email consists of an envelope containing sender and recipient addresses, and a message with a header defining sender, recipient, subject, and a body containing the actual content. SMTP works by establishing a TCP connection between servers, sending commands like MAIL FROM, RCPT TO, and DATA to transfer the message, then terminating the connection. Extensions like MIME allow non-text content like images and files to be included in emails.

Protocolo SMTP (Simple Mail Transfer Protocol)Luis Alfredo Sanchez

IP adress and routing(networking)welcometofacebook

This document provides an overview of IP addressing and routing. It discusses key topics such as: - IP addresses being 32-bit numbers written in dotted-decimal format, with the network portion identifying the network and host portion identifying the device. - Private and public IP addresses, and how Network Address Translation (NAT) allows private networks to connect to the internet using a public IP address. - Protocols like ARP and DNS that resolve IP addresses to MAC addresses and names. - Default gateways and how routers use routing tables to determine the best path between networks. - The differences between routing and switching, with routing using network layer information and switching using data link layer addresses.

Protocolos- SMTP, POP3 e IMAP4Felipe Weizenmann

Simple mail transfer protocolAnagha Ghotkar

This document provides an overview of SMTP (Simple Mail Transfer Protocol) including its history, general features, how it works, and limitations. SMTP is an Internet standard used to transfer email between Mail Transfer Agents (MTAs). It originated in 1980 and was standardized in 1981. Key points are that SMTP operates over TCP port 25 in a request-response format, uses status codes to indicate success or failure, and relies on MTAs like Sendmail to route and deliver messages between servers. However, it only supports basic 7-bit ASCII encoding and is susceptible to misuse like spamming.

Simple Mail Transfer ProtocolRajan Pandey

This document provides an overview of the Simple Mail Transfer Protocol (SMTP). It discusses how SMTP clients and servers work, how messages are sent to SMTP servers using either relaying or DNS, the SMTP communication model involving connection establishment, message transfer, and connection termination. It also describes mail processing involving envelopes and headers, status codes, and special features like mail forwarding, gatewaying, and relaying. Limitations of SMTP are also noted.

Ip addressingOnline

IP addressing provides a unique identifier for devices on a network. There are two main types - static and dynamic. IP addresses are 32-bit numbers divided into network and host portions. Classes A, B, and C determine the portions. Subnetting and CIDR allow flexible allocation. Special addresses like private and link-local are never used publicly. IPv6 uses 128-bit addressing. Tools like ping, tracert, and pathping test network connectivity. Mobile IP uses home and care-of addresses to maintain connectivity as devices move between networks, with home and foreign agents facilitating address changes. Inefficiency can occur via double crossing or triangle routing.

IBM DataPower Gateways - What's new in 2016 v7.5.2IBM DataPower Gateway

SmtpEri Alam

SMTP is the standard protocol for sending email over the Internet. It defines the message format and how messages are transferred between mail servers. When a client wants to send a message, it establishes a connection to an SMTP server and issues commands like MAIL, RCPT, and DATA to specify the sender, recipients, and transmit the message content. While simple to implement, basic SMTP has limitations like lacking authentication that allow issues like spam. Extensions to SMTP like ESMTP aim to address such problems.

Smtp, pop3, imapv 4Shwetanshu Gupta

This document discusses electronic mail (e-mail) and how it works. It describes the key components of an e-mail system including user agents, message transfer agents, and message access agents. It explains the store-and-forward model that modern e-mail uses to send and receive messages between users. It also outlines the main protocols used for e-mail - SMTP for sending messages between servers, and POP3 or IMAP for users to access their messages. IMAP is generally preferred as it allows accessing and organizing messages from multiple devices.

Ip addressAmandeep Kaur

IP addresses are 32-bit numbers that uniquely identify devices on a network. They allow for file transfers and email communication using the Internet Protocol. There are five classes of IP addresses - A, B, C, D, and E - which are divided into ranges to define large, medium, and small networks. Users can determine the IP address of their own device or other computers and websites using commands like ipconfig and ping.

Networking devicesrupinderj

This document discusses different types of networking devices used to connect local area networks (LANs). It describes hubs, repeaters, bridges, routers, and gateways. Hubs and repeaters operate at the physical layer, bridges operate at the physical and data link layers, and routers and gateways operate at the network layer and above to connect multiple networks and perform protocol conversion. The document provides details on the functions and characteristics of each type of device.

Gsm.....pptbalu008

Global System for Mobile (GSM) is a second generation cellular standard developed for voice services and data delivery using digital modulation. It has a network subsystem including components like the MSC, HLR, VLR, and AuC that handle call processing and subscriber information. The radio subsystem consists of BSCs controlling multiple BTSs to manage radio network access. GSM provides international roaming, high quality voice calls, and supports data services like SMS and fax in addition to voice.

Network protocolsHemnath R.

The document discusses network protocols and related standards. It introduces the OSI Reference Model, which defines seven layers of network functionality standardized by ISO to enable communication between systems. These layers include the physical, data link, network, transport, session, presentation, and application layers. The document also discusses IEEE 802 network specifications and various protocols like TCP/IP, NetBEUI, and others. It provides an overview of each OSI layer and their functions in network communication.

Internet protocol (ip) pptDulith Kasun

Computer networking devicesRajesh Sadhukha

This document discusses various networking devices used to connect electronic devices and share resources in a computer network. It describes network interface cards (NICs) that provide the physical interface between a computer and cabling. It also covers repeaters that regenerate signals to extend distances, modems that modulate and demodulate signals for internet connections, hubs and switches that connect multiple devices either by broadcasting or selectively forwarding, bridges that segment networks while filtering traffic, and routers that intelligently connect different network types and choose optimal paths between them. The document provides details on the function and layer (physical, data link, network) of operation for each type of networking device.