How SAP Router Works?

SAProuter examines any incoming data packets, checks the route and authorization and then sends them to their specified targets. The partner that sets up the connection specifies the route (from SAProuter to SAProuter and to the target). This procedure is known as source routing.

If you want a connection, from a SAPgui to an R/3 System for example, to run through a SAProuter, then you need to enter the route in the SAPgui command line.

You can use SAProuter if there is no direct IP connection between the communication partners. SAProuter must be running on a host that is connected to both IP networks. It can then receive data from the SAPgui in one IP network and relay it to the R/3 server in another IP network, and vice versa. Normal IP routing is used between the application programs and the SAProuters.

Connections established using SAProuter have the additional advantage that no end-to-end connections between the participating system are necessary on network level. For example, if accessing a frontend PC on an R/3 server with an intermediate SAProuter, it is not necessary to define the complete path between the two systems at TCP/IP level. It is
sufficient if both parties can reach the SAProuter. From an SAP communication viewpoint, this represents a point of concentration in your network that serves as a starting point for each subconnection.

Each subnetwork stored logically behind a SAProuter is therefore reduced to the network address of the SAProuter.

Without SAProuter, the Internet Protocol (IP) addresses must be unique, which cannot always be guaranteed, particularly on international networks.

With SAProuter it is possible to connect two points that have unofficial,or even identical, IP addresses. Therefore, it is rarely
necessary to adapt existing address topologies using official IP addresses.

SAP Online Service & Support now only supports SAProuter connections due to these advantages. Because SAP routes all accesses to internal systems (such as SAPNet - R/3 Frontend) and all service connections via SAProuter, the connection between SAP and the customer is reduced to a single SAProuter - SAProuter connection.

Windows XP - Creating a Dial UP Connection
Please login using an Administrator account or an Administrator access account.
For Win XP Pro users:
On the Windows Desktop, click on Start > My Network Places.

On the left side, click on View Network Connections

For Win XP Home users:
There will be no My Network Places option available.
Click on Control Panel

On the right side, click on Network and Internet Connections
Click on the Network Connections icon.

On the left side, click on Create a new connection
A window will appear. Click on the Next > button.

Select the option Connect to the Internet and click on the Next > button.

Select the option Set up my connection manually and click on the Next > button.

Select the option Connect using a dial-up modem and click on the Next > button.

Type in BSNL under the ISP Name and click on the Next > button.
Type in the phone number that you will be using to connect to BSNL and click on the Next > button.
Username: username
Password: Enter your Password here(Password is case-sensitive and should be comprised of alphanumeric characters.)
Click on the option Add a shortcut to this connection to my desktop if you want to create a shortcut on the desktop.
Click on the Finish button.

A new dialer is created in the Network Connections.
A connection shortcut icon will appear at the Windows desktop.
You've successfully setup the BSNL Internet connection.

Computer is giving beeps

beeps Discription of Problem

1 beep System ok or No RAM installed
2 beeps Incompatible RAM type or POST/CMOS Error
5 beeps Processor is not usable
Short beep Normal POST – system ok
2 short beeps POST Error – See Error Code shown on screen
Continuous short beep Power supply , system board , or keyboard problem
Continuous long beep Memory problem
Continuous Hi-Low beeps CPU Overheating
1 long 1 short beep Motherboard problem
1 long 2 short beeps Display adapter problem
1 long 3 short beeps Enhanced graphics problem (EGA)
3 long beeps Keyboard problem

What is loopback address???

                         A computer on the network is identified by what is known as an IP address, which consists of four numbers separated by dots, such as 127.0.0.1. However, there is one address that cannot be used by any computer in the world, and that address is 127.0.0.1. The reason is that this address has been reserved as what is known as the loopback address. A loopback address is an address that tells the computer not to test its connections to another computer, but to test its own basic network setup. When we use "ping 127.0.0.1" command that tests whether the TCP/IP protocol stack of the machine is working properly.

Computer is Getting Slow while starting Windows???

If your system hangs about 2 or 3 minutes at startup, where you can't access the Startbutton or the Taskbar, it may be due to one specific service (Background Intelligent Transfer) running in the background.
Here's what you do:·
Click on Start/Run, type 'msconfig', then click 'OK'.·
Go to the 'Services' tab, find the 'Background Intelligent Transfer' service.·
Disable it, apply the changes & reboot

How to configure OSPF?

Router1>enable
Router1#configure terminal
Router1(config)#router ospf 1
Tip- (After entering in that protocol provide network ip's with their wildcard mask & area id of directly connected networks)

Router1(config-router)#network 192.168.12.0 0.0.0.255 Area 1
Router1(config-router)#network 192.168.13.0 0.0.0.255 Area 1
Router1(config-router)#network 192.168.1.0 0.0.0.255 Area 1

Tip- (after doing all configration check your protocols configued or not)
Router1#show ip protocols
Tip- (Please keep Area id same on those who you want to be commiunicated)
Tip- (configure the same protocol on all routers in your network to happen communication between them)
check your network after all routers configured by using ping command

Confiuration of RIP

Router1>enable

Router1#configure terminal

Router1(config)#router rip


Tip- (After entering in that protocol provide network ip's of directly connected networks)


Router1(config-router)#network 192.168.12.0

Router1(config-router)#network 192.168.13.0

Router1(config-router)#network 192.168.1.0


Tip- (after doing all configration check your protocols configued or not)
Router1#show ip protocols


Tip- (configure the same protocol on all routers in your network to happen communication between them)
check your network after all routers configure by using ping command

Basic Router Configuration

Router>enable ( This is user mode)
Router#confiugre Terminal (This is Privilliged mode)
Enter configuration commands, one per line. End with CNTL/Z.

Note – (To Give Hostname to Router)
Router(config)#hostname Router1 (This is configuration Mode)
Router1(config)#

Note - (To Configure interfaces)
Router1(config)#interface fastEthernate 0/0
Router1(config-if)#ip address 192.168.2.10 255.255.255.0
Router1(config-if)no shutdown

Router1(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

Router1(config-if)#interface s2/0
Router1(config-if)#ip add 192.168.12.1 255.255.255.0
Router1(config-if)#clock rate 64000
Router1(config-if)#no shutdown

%LINK-5-CHANGED: Interface Serial2/0, changed state to down Tip- (it will be up when you configure remote interface of connected router)

Router1(config-if)#interface s2/0
Router1(config-if)#ip add 192.168.12.1 255.255.255.0
Router1(config-if)#clock rate 64000
Router1(config-if)#no shutdown

%LINK-5-CHANGED: Interface Serial3/0, changed state to down Tip- (it will be up when you configure remote interface of connected router)


Tip- (copy all your configuration to NVRAM by going in Privilliage mode so it will be saved)

Router1>enable
Router1#copy running-config startup-config
Destination filename [startup-config]?
Building configuration...
[OK]
Router1#

Distance Vector vs Link State Routing Protocol

Distance Vector:

•                    Distance Vector exchanges the routing updates periodically whether the topology is change or not, this will maximize the convergence time which increases the chance of routing loops.
•                    Secondly, the Distance Vector routing protocols rely on the information from their directly connected neighbors in order to calculate and accumulate route information                   
•                    Distance Vector routing protocols require very little overhead as compared to Link State routing protocols as measured by memory and processor power
•                    Routing Information Protocol (RIP) and Interior Gateway Routing Protocol (IGRP) are the examples of Distance Vector routing protocols

 Link State:

•                    Link State routing protocols send triggered change based updates when there is a topology change. After initial flood, pass small event based triggered link state updates to all other routers. This will minimize the convergence time that's why there is no chance of routing loops.
•                    Link State routing protocols do not rely solely on the information from the neighbors or adjacent router in order to calculate route information.
•                   Link State routing protocols have a system of databases that they use in order to calculate the best route to destinations in the network. An extra feature of Link State routing protocol is that they can detect media types along with other factors. This could increase the overhead as compare to Distance Vector routing protocols in order to measure by processor power and memory
•                    Open Shortest Path First (OSPF) is a classic example of Link State routing protocols.

Something about company and work

        Our company is providing networking services. That include developing a network, maintaining network. Also we are assembling computers as per customer requirements and also accepting AMC's. Providing the equipments like router, switches, cables etc.
        Shortly we are going to launch website of company where you will get all the information about us, working of company, services provided by company, clients of company but till then this is the medium for you to reach to us and vice versa.
        Till then we'll  provide you some useful information about networking concepts. Hope that will helpful for you.

What does Exilir means???

 EXILIR is meaningless word. There is no meaning of EXILIR in any dictionary of world. So, now you are confused. "If there is no meaning then how it became the name of the company?".

          Wait Wait Wait friends, we'll tell you how it became EXILIR.It is small mistake. One of us reading a novel "The Alchemist" written by "Paulo Coelho". From that book he got the word EXILIR but that was his mistake, the actual word is ELIXIR. ELIXIR means "a magical or medicinal potion that either able to change metals into gold or able to prolong life indefinitely."

          But as we have already started using name "EXILIR" and we liked it too much. After a few days we realized that the actual word is ELIXIR. But who cares what is the meaning of Google or Yahoo, so we have decided not to change the name of our company. So now it is EXILIR.

          These is the small story about the name of the company. Hope no one of you will have any problem with name of our company.

New Beginning

Finally, We have started Exilir.......