BGP(Border gateway protocol) - Configuration in Cisco packet Tracer

welcome to tutorial number three of the packet tracer tutorial series in this tutorial series we will be configuring our network using the BGP protocol the BGP protocol stands for the border gateway protocol now the definition of that is BGP is a standard exterior gateway protocol designed to exchange routing and reachability information among autonomous systems on the Internet the protocol is often classified as a path vector protocol but is sometimes also classified as a distance vector routing protocol so now as always no one of us understands what the heck the definition says so I'm again going to come up with my one-liner to understand what bgp is unlike protocols which we saw in our previous tutorials which were our IP at OSPF which were interior protocols for an autonomous system this connects to autonomous systems so it is called an exterior gateway protocol this is a simple definition or simple understanding which we can get of the border gateway protocol one more thing is that it is most widely used protocol in the real life systems so this was it about BGP now let's start so first of all like let's take the generic computers as always we would require two generic computers so this is the first one and this is the second one now let's take two routers one and router number two now let's connect these routers by using a link you connected this - and this is connected okay so now let's pick the comment box and write down so this is a S which is autonomous system let's write this as 200 let's name this autonomous system as a s hundred the network ID for this link which connects the computer and the router let's name it as one ninety two point one sixty eight point one point zero let's name the network connecting these two routers as one ninety two point one sixty eight point two point zero and the third one one ninety two point one sixty eight point three point zero now to tell the person who is viewing this as these are two different autonomous systems let's take this thing over here the palatal log now let's take this circle fill color select the fill colors take whatever you like for convenience we'll take this one most of the guys out there are using this color so we would probably use the same one now now delete this again C like this and so this is the of our a s hundred now similarly do the representation of a s 200 so this tells us that these two are two different autonomous systems now let's configure our computer so go to your computer go to desktop go to IP configuration and write down the IP for that which is 192 point one sixty eight point one point two subnet mask this is a default one which we get the Gateway is 192.168.1.1 now if there is something like this at your DNS server delete that press the cross I can get out of the PC 0 now let's configure the PC one go to desktop I feel configuration do it this stuff over here and let's write down the IP of our PC num2 which is 192 point one sixty eight point three point two the subnet mask and Gateway 192 point one sixty eight point three point one get out of this now let's configure our router number zero so for that in our fast internet go to the IP address and write down the Gateway of the PC which it is connected to which is 192.168.1.1 and set the board status as on so now this link is activated oh my cache I'm using what's which are there in the robotic movies okay let's not get on with it so for serial two point two slide zero so just now we saw that the router number zero has the clock and router number one does not have the clock so we have to set the clock for outer number zero so for two first in the net first we have done that now serial to slash zero then the network ID for this is one ninety two point one sixty eight point two and the IP of our router we will take it as point two and then set the ports to this as on so we have configured the serial 2/0 and don't forget to set the clock rate to 64,000 you can use anything you want for convenience we will be using 64,000 so router zero is configured now go to router number one and we have to do pretty much the same thing or here just we have to change the network ID so 192 point one sixty eight point three point one set the ports it is on we get the subnet mask then go to serial 2/0 and yeah the clock right here is not set we do not require the clock rate for router number one and now let's set the IP of this router which will be one ninety two point one sixty eight point two point three and let's set the port status as on so now we have done the very necessary things which are required for there and everything has turned green every link has turned green so this basically tells us that okay the links are configured they are activated ok now let's check whether this is working so successful now let's go from here to here and it is failed obviously so it is going to be failed because we have not configured it with some communication protocol so now in this tutorial we are going to communicate it with the BGP which is the border gateway protocol okay so now let's do that by using our CLI which is the command line interface go to the command line interface of router 0 and now we are going to write the commands for configuring this so first exit from config mode go to config mode and then let's configure router bgp 100 so our 100 the number 100 here gives us tells us that else that's the router in fact that the autonomous system which we are referring is number that's 100 okay so router bgp hundred the next command would be the networks the router is joined to so one network is 192 point one sixty eight point one zero connecting the PC the other network is 192 point one sixty eight point two point zero connecting the two routers now we have to provide the IP addresses of the neighboring autonomous system which is a is 200 so we have to provide the IP of router one and PC one so with the command for that is neighbor 192 point one sixty eight point two point three which is the IP address of the router number one and to tell it that it is the IP of is 200 we will have to write remote a s 200 invalid input detected okay the spelling of neighbor is wrong probably I've written the spelling of neighbor as per the British English and American English spelling is test so an e IG h bo r okay so the command has run and now for IP address of the computer we will have to write one ninety two point one sixty eight point three point two remote is 200 so probably we have configured the router zero with the BGP protocol now exit from here go to config and hit save now let's go to route number one and we have to do the same process by choosing the corresponding IP addresses okay cool now go to config mode rotor PGP 200 so after doing that lets tell the router which networks it is connected to so number one is 192 point one sixty eight point two point zero connecting the two routers and the number two is connecting the computer which is 192 point one sixty eight point three point zero and the neighbor which is n e IH vor not mistaken this time so the spelling of neighbor is right the neighbor the IP address of the router number zero one ninety two point one sixty eight point two point two and the remote a s is hundred okay so BGP ad J change neighbor 192.168.1.2 up okay pretty good so our neighbor is up press enter configure router now we have to add the second neighbor you you you one point two which is the computer and remote is 100 okay so we have configured this router also so exit from here go to config hit save and done I think so this should be right our configuration should be right so let's check that so first get it from PC to let's delete this thing's first so peace is 0 to router 0 successful PC 0 to router 1 successful pretty curt pcs 0 to PC 1 successful okay so our border gateway protocol has been perfectly configured and yeah the motive of this tutorial is done if you want to simulate it you can do it by going here uncheck these things so that it doesn't unnecessarily test its for our IP dhcp and other things okay so now Auto capture and play forward so we can now here see the simulation what the heck is just doing okay so now the packet is going it is a drought of one and now it has reached PC one and now it is sending back the acknowledgement from the path which it came from so yeah the simulation is also working perfectly fine so we are done with our BGP which is the border gateway protocol so this was it guys for today's tutorial thank you for tuning in and again as I say if this helps you a tiny bit then please like subscribe and share with your friends who ever needs this so this was it guys thank you for tuning in but bye

Channel: Think and Learn

Views: 45,842

Rating: 4.7450199 out of 5

Keywords: BGP, Border gateway Protocol, Cisco, Packet tracer, Cisco Packet Tracer, bgp in networking, BGP routing protocol, protocol, network, BGP in Hindi, hindi, bgp in cisco packet tracer, BGP configuration

Id: U2cMVZBrilA

Length: 13min 9sec (789 seconds)

Published: Sun Oct 22 2017