To connect a cisco router to another cisco router

I am hoping that you are able to help me. To connect a cisco router to another cisco router I belief I will need module interface serial for both cisco router (cisco 2811) if this is true ????? my question is when two o more cisco router a far away from each other eg. 1,000 feet (one building to another building) I need to get a 1,100 feet serial cable to connect one router to another router?.
 
Thank you for your help and videos?
 
I am studying for CCNA.
jamesbondkyAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

AkinsdNetwork AdministratorCommented:
It depends
- You can directly connect two routers with cables or over the internet.
- The connection does not have to be serial although serial connections are widely used for WAN connection; RJ45 cables, Coaxial, or Optical connections may also be used.

Do the buildings have their onw internet connection already or are these routers going to provide internet access?
0
jamesbondkyAuthor Commented:
Thank you for responding, I understand if two office are distance apart you can use the internet to communicate using the routers. Company ABC firm started with 20 users and all of them were in one building, during the years it grew from 20 to 110 employees and now the firm is using two building distance less than 1,000 feet. They are using fiber optic to connect from one building to the other and each building has it own server one primary the other secondary. In case the primary fail (Hardware) the secondary take over using heartbeat technology.  

My question is:
1)What is the benefit having two sub net ( or more) ?
2)If you want to have more than one sub net and the router are far away between 150 to 900 feet, what type of interface you will use to connect the router?

Thank you again
0
AkinsdNetwork AdministratorCommented:
1)What is the benefit having two sub net ( or more) ?

Open in new window


The benefit of having multiple subnets depends on your goals. Subnets can be compared with classrooms in school. With that said, it is important to note that it is recommended not to have more than 500 hosts in one subnet to minimize congestion.
Why multiple subnet
- Security eg restricting access globally based on subnet
- Ease of management
- Quality of Service (eg VOIP vlan should be dedicated and not shared with data etc. VOIP traffic should also be prioritized over other traffic)

You can have a dedicated subnet to Sales, HR, Management, Accounting, Finance, etc if you desire depending on ease of management or security concerns.


 2)If you want to have more than one sub net and the router are far away between 150 to 900 feet, what type of interface you will use to connect the router?

Open in new window

Subnet is not a magical word as may have discovered.
Routers are used to link 2 networks together. If you have 2 routers, one in each site, you automatically have 2 subnets (sub networks). You will have to link both of them up with routes. To have 1 subnet span through multiple locations, you need switching technologies to make that happen. Once a router is introduced, the network is automatically broken.

eg 192.168.1.1 /24 and 192.168.2.1 /24 are two separate subnets
but 192.168.1.1 /23 and 192.168.2.1 /23 both belong to the same subnet

Subnetting is a matter of design or structure. America has 50 states. This is the same as having 50 subnets. It is just about division. There can't be a part of California both in West Coast and East Coast because they've been separated by a boundary. The City of Richmond in California is not the same as the City of Richmond in Virginia despite the fact that they have the same name. They are separated by state boundaries.

Subnets are separated by router boundaries within 1 router or between 2 or more routers.

I hope this helps
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Ultimate Tool Kit for Technology Solution Provider

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy now.

jamesbondkyAuthor Commented:
I've requested that this question be deleted for the following reason:

I am still confused
0
jamesbondkyAuthor Commented:
no
0
AkinsdNetwork AdministratorCommented:
Apologies if the above is not clear enough.
 Please look up video tutorials on subnetting on youtube.com

 Your question is what are the benefits of subnetting and the answer is

- Security eg restricting access globally based on subnet
  - Ease of management
  - Quality of Service (eg VOIP vlan should be dedicated and not shared with data etc. VOIP traffic should also be prioritized over other traffic)


 I hope that clears your confusion
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Routers

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.