Presentation is loading. Please wait.

Presentation is loading. Please wait.

Small Office Service Serial Router Connects Internal Stations to Shared Broadband Access Service Small Office Serial Router Shared Broadband Line ISP.

Published by Modified over 9 years ago

Similar presentations

Presentation on theme: "Small Office Service Serial Router Connects Internal Stations to Shared Broadband Access Service Small Office Serial Router Shared Broadband Line ISP."— Presentation transcript:

1 Small Office Service Serial Router Connects Internal Stations to Shared Broadband Access Service Small Office Serial Router Shared Broadband Line ISP

2 Small Office Service Serial Routers are Very Simple –One or more ports to connect the serial port to the LAN –One port to connect to the high-speed access line, which is serial –Much less expensive than general-purpose routers because no complex router forwarding decision caused by multiple possible output ports Serial Router

3 Small Office Service Serial Router Connects Internal Stations to Shared Broadband Access Service –Companies with several stations pay much more for line than when connecting a single PC –Each machine gets its own IP address via DHCP –Serial router may be a user PC with added software –Often, router is called a gateway (the old name for router)

4 Connecting Two PCs at Home Physically, One PC (the Gateway PC) Connects to the Hub or Switch and to the Broadband Line –Gateway (router) PC needs two Network Interface Cards, one for hub, one for broadband modem Gateway PC Broadband Line to ISP ADSL/Cable Modem Hub or Switch NIC

5 Connecting Two PCs at Home Gateway PC Needs Gateway Software –On NIC to broadband line, acts like a single station –Gets temporary IP address from ISP DHCP –Sends and receives to ISP using this IP address Gateway PC Send, Receive with Temporary IP Address

6 Connecting Two PCs at Home Gateway PC Needs Gateway Software –Each PC is set up with a permanent IP address –So gateway PC has two addresses, one bound to each NIC Gateway Program Temporary IP Address Permanent IP Address Permanent IP Address

7 Connecting Two PCs at Home Gateway Software Does Network Address Translation (NAT) –When a PC sends using permanent IP address –Gateway software replaces source IP permanent address with temporary IP address ISP expects Gateway PC Temporary IP Address Permanent IP Address Permanent IP Address

8 Connecting Two PCs at Home Gateway Software Does Network Address Translation (NAT) –When a PC receives –Gateway software replaces ISP temporary IP destination address with receiver’s permanent IP address, passes on to PC Gateway PC Temporary IP Address Permanent IP Address Permanent IP Address

Download ppt "Small Office Service Serial Router Connects Internal Stations to Shared Broadband Access Service Small Office Serial Router Shared Broadband Line ISP."

Similar presentations

Hub A hub is a device that connects PCs together All hubs Contain multiple access ports the hub simply forwards the packets to all the other devices connected.

Hub A hub is a device that connects PCs together All hubs Contain multiple access ports the hub simply forwards the packets to all the other devices connected.
Networking | Hardware Components

Networking | Hardware Components
Networks & Components Discuss the components required for successful communications Explain the purpose of communications software Identify various sending.

Networks & Components Discuss the components required for successful communications Explain the purpose of communications software Identify various sending.
Layer 3 Switching. Routers vs Layer 3 Switches Both forward on the basis of IP addresses But Layer 3 switches are faster and cheaper However, Layer 3.

Layer 3 Switching. Routers vs Layer 3 Switches Both forward on the basis of IP addresses But Layer 3 switches are faster and cheaper However, Layer 3.
Case Study: Pat Lee’s Home PC Network Chapter 1a Panko’s Business Data Networks and Telecommunications, 6th edition Copyright 2007 Prentice-Hall May only.

Case Study: Pat Lee’s Home PC Network Chapter 1a Panko’s Business Data Networks and Telecommunications, 6th edition Copyright 2007 Prentice-Hall May only.
BTT 101 / 2O1 Lesson 10 Dundas Valley Secondary Mr. Young.

BTT 101 / 2O1 Lesson 10 Dundas Valley Secondary Mr. Young.
Modems and Beyond Chapter 5 Copyright 2001 Prentice Hall Revision 2: July 2001.

Modems and Beyond Chapter 5 Copyright 2001 Prentice Hall Revision 2: July 2001.
Wi-Fi Structures.

Wi-Fi Structures.
Lesson 5 – Understanding Network Hardware. Repeaters Hubs and concentrators Bridges Routers Switches Gateways Firewalls Short-haul modems OVERVIEW.

Lesson 5 – Understanding Network Hardware. Repeaters Hubs and concentrators Bridges Routers Switches Gateways Firewalls Short-haul modems OVERVIEW.
Hardware & Software Needed For LAN and WAN

Hardware & Software Needed For LAN and WAN
Overview of simple LANs. Networking basics: LAN TCP/IP is the protocol used in the Internet and dominates the internet and transport layers The subnet.

Overview of simple LANs. Networking basics: LAN TCP/IP is the protocol used in the Internet and dominates the internet and transport layers The subnet.
Networking DSC340 Mike Pangburn. Networking: Computers on the Internet  1969 – 4  1971 – 15  1984 – 1000  1987 – 10,000  1989 – 100,000  1992 –

Networking DSC340 Mike Pangburn. Networking: Computers on the Internet  1969 – 4  1971 – 15  1984 – 1000  1987 – 10,000  1989 – 100,000  1992 –
1 25\10\2010 Unit-V Connecting LANs Unit – 5 Connecting DevicesConnecting Devices Backbone NetworksBackbone Networks Virtual LANsVirtual LANs.

1 25\10\2010 Unit-V Connecting LANs Unit – 5 Connecting DevicesConnecting Devices Backbone NetworksBackbone Networks Virtual LANsVirtual LANs.
Networking Components Manuel Palos. HUBS Hubs are inexpensive devices that connect multiple devices t0 a network. Hubs merely pass along network data.

Networking Components Manuel Palos. HUBS Hubs are inexpensive devices that connect multiple devices t0 a network. Hubs merely pass along network data.
NETWORKING DEVICES  What is a networking device?  What are the different networking devices?

NETWORKING DEVICES  What is a networking device?  What are the different networking devices?
CECS 474 Computer Network Interoperability Tracy Bradley Maples, Ph.D. Computer Engineering & Computer Science Cal ifornia State University, Long Beach.

CECS 474 Computer Network Interoperability Tracy Bradley Maples, Ph.D. Computer Engineering & Computer Science Cal ifornia State University, Long Beach.
What is a Computer Network? Two or more computers which are connected together.

What is a Computer Network? Two or more computers which are connected together.
Networking Components Chad Benedict – LTEC 4550 1.

Networking Components Chad Benedict – LTEC
Case Study: Pat Lee’s Home PC Network Chapter 1a Updated January 2007 Panko’s Business Data Networks and Telecommunications, 6th edition Copyright 2007.

Case Study: Pat Lee’s Home PC Network Chapter 1a Updated January 2007 Panko’s Business Data Networks and Telecommunications, 6th edition Copyright 2007.
Network Devices BY JACKSON HARDESTY. Hubs  Hubs are a now outdated way of sending signals at layer 2 compared to switches.  Hubs are used primarily.

Network Devices BY JACKSON HARDESTY. Hubs  Hubs are a now outdated way of sending signals at layer 2 compared to switches.  Hubs are used primarily.

Similar presentations

Ads by Google