What is gateway in networking

1,159 views

Published on

Preface
In a networking topology, the default gateway configuration for computers and networking devices can be complicated. The value of the gateway which is to be configured would be dependent on the topology and the capability of the devices which are been used. Gateway address configuration can be confusing, where there are many IP addresses involved, like management IP address of a switch, gateway on a switch, IP address on access points, dhcp server etc. The eBook contains 15 case studies, which are based on real time network deployment scenarios, where the value of default gateway, which needs to be configured on computers and networking devices are explained with topology diagrams.

Published in: Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
1,159
On SlideShare
0
From Embeds
0
Number of Embeds
16
Actions
Shares
0
Downloads
0
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

What is gateway in networking

  1. 1. Copyright 2013@tcpipguru.comWhat is my Default GatewayDefault gateway configurations explained with case studies
  2. 2. Copyright 2013@tcpipguru.comPrefaceIn a networking topology, the default gateway configuration for computers andnetworking devices can be complicated. The value of the gateway which is to beconfigured would be dependent on the topology and the capability of the deviceswhich are been used. Gateway address configuration can be confusing, where thereare many IP addresses involved, like management IP address of a switch, gatewayon a switch, IP address on access points, dhcp server etc. The eBook contains 15case studies, which are based on real time network deployment scenarios, wherethe value of default gateway, which needs to be configured on computers andnetworking devices are explained with topology diagrams.
  3. 3. Copyright 2013@tcpipguru.comCase study 1Two PC’s are connected to a switch as shown. The PC’s belong to the domain,which is setup on the domain controller. If both the PC’s require access to theinternet, what should be the gateway address and DNS server IP addressconfigured on the PC’s.ExplanationThe gateway address of PC1 and PC2 should be configured as the IP address of therouter, which is connected to the internet, which is 192.168.1.5. The DNS server IPaddress should also be configured as 192.168.1.5, provided the router is configuredwith the DNS server, which is provided by the ISP. If the router is not configuredwith the DNS server, the ISP provided DNS server should be configured on thePC’s. The role of the domain controller is to manage domain related activities. It isnot involved in any routing or IP forwarding activities.
  4. 4. Copyright 2013@tcpipguru.comCase study 2Two PC’s, PC1 and PC2 are connected to a layer 2 switch. The PC’s are ondifferent network addresses. The switch is configured with a management IPaddress. What should be default gateway on PC1 to ping PC2.ExplanationPC1 and PC2 are on different network address. PC1 has to be configured with agateway address, to reach a system on a different network. The gateway should becapable of forwarding packets from one network to a different network. In theabove topology, only a layer 2 switch is available, which does not have IPforwarding capacity. If the management IP of the switch is configured as thegateway for PC1, the switch would be unable to forward the packet to PC2, simply
  5. 5. Copyright 2013@tcpipguru.combecause it does not have the required functionality. So in the topology,communication between PC1 and PC2 cannot be achieved.Ebook Price – 3.99Email us to buy the Ebook – contact@networkinterfaze.com

×