Question:
IP address a network, routers?
Tammera
2011-01-20 09:26:03 UTC
Im doing an assignment for a network that i have to IP address. In the Cisco book it says that you have to IP address the cables between the routers and refers to it as a WAN ip address, and all examples are with the routers in different buildings. Im struggling to work out whether if you have 4 routers, with 6 interconnected cables, all in the same building, do you still have to IP address the connecting cables?
Three answers:
Daniel
2011-01-20 09:45:18 UTC
It sounds like you are misusing the terminology of IP address...



You are not addressing something, an IP address is the internet equivalent to a telephone number...



There are several ways to connect remote buildings together all have their own certain level of expertise.



All no matter what would require each router has a static (dedicated) IP address... it can be either routable, or non-routable... depending on the situation and your knowledge...



One way would be to do a VPN mesh... This would mostly require that all the routers had a routable static IP, and you just make sure all of the routers are capable of being a member of a VPN mesh.. You just use the built in programming to link all of these routers together using the IP addresses you have, and with the level of encryption you want to use. This requires alot of knowledge...



The alternative way, which in the end may be more costly... would be to do a frame connection... You can typically get these from your phone company.. but it requires a monthly charge for the frame, and all of the locations.. and on top of that, all of the businesses must reside in the phone company's territory... Otherwise you are better off doing a VPN mesh, or simple VPN tunnels between the locations (especially if its only 4)...



The frame network is basically remote DSL connections to each business, and you would utilize non-routable IPs for this, making the entire network operate out of 1 gateway... All of the DSL connections go back to the phone company, and are delivered over whichever connection you specify, to your main router.. and from there it goes out on the internet... This setup is highly complicated... and should be used in very special circumstances... Such as a limited area that requires alot of internet connections...



Your best bet would be to read up on VPN tunneling, and VPN meshing, if you want to make all the connections between the places secure... and allow all of the sites to access each others networks seemlessly...



The WAN you referring to is the outside interface IP address... its the Wide area network.... and the inside interface, that connects to all the devices INSIDE of that location, is the LAN, the Local area network... how you would connect all these devices together, is thru the WAN ip addresses... but when you do this, careful considerations need to be made so that each building has a different pool of LAN addresses, so you dont cause conflict across all the networks..



Alot of reading.... probably more than you were looking for... but every WAN interface needs a static IP, if you truly want to connect all the networks together to form 1 network... and the VPN tunnels for secure and easy access...



Good luck
BigE
2011-01-20 09:37:47 UTC
You need to assign the networks IP ranges, and each interface into each router an IP address.



So if you have a network A 192.168.0.0/24 between Router R1 and Router R2

Router R1 could have it's interface 192.168.0.1/24 and Router R2 192.168.0.2/24



There are other considerations, like hot stand by.



Perhaps describe the configuration of the network?
DeinMutter
2011-01-20 09:30:52 UTC
I've never seen cabling have an ip address, and ive never seen ip address used as a verb. If you mean you need to set static addresses for the network devices, then that would be in their individual settings, as for the cables, they don't have addresses, they're just copper wire. Maybe you should post excaclty what ur supposed to do or something, so it makes sense.


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