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How to Swap Out or Replace a Router?

By BcomeITPro ·
Hello guys, I'm working for a school now as a Network Technician and I'm the only IT person here. The Router now has an IP Address with it. I never swap out or replace a Router on the network before and I would like to learn or know how to do it if, in case, the Router or network has problem in the future. I would like to know the procedures and how to make it work with the network. What should I do? I would like to know how to replace on both the same model and different model if you can. Please help.

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All Answers

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Easy...

by cmiller5400 In reply to How to Swap Out or Replac ...

For the same model router, just copy the config file from the router to the new one. How you do this depends on what kind of router you are using.

For a different brand router chances are the configuration may need to be rebuilt using their syntax for the commands and interface structure.

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Reponse To Answer

by BcomeITPro In reply to Easy...

For the same model, how and where can I get or see the config file from the router and copy it to the new one? Can you list step by step if you don't mind?

For the different one, how can I configure it? What kind of syntax of the commands and interface structure do I use? and where can I get it?

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Reponse To Answer

by TobiF In reply to Easy...

This is in reply to the reply of BcomeITPro to this comment:
As smiller5400 indicated in the inital answer, the HOW depends on what make and model your router is. If you don't tell us what make and model your router is, we'd have to either guess, or give you the instructions for every possible router out there. Neither of which is really useful.

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Reponse To Answer

by BcomeITPro In reply to Easy...

Here the Router we have now is CISCO 1760-V-SRST. If I want to replace with the Router Catalyst 3750G, what should I do and what kind of commands do I need to use?

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How to Swap Out or Replace a Router?

by Agube In reply to How to Swap Out or Replac ...

yes it not quit a big deal than to just long into the router withe ip 192.168.0.1
with user name admin and password admin or you simply run the software of the router purchased and follow the instruction and configure the router.

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Reponse To Answer

by cmiller5400 In reply to How to Swap Out or Replac ...

Well, with a home router that would work, but with a business class router, it just ain't that simple.

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How to Swap Out or Replace a Router?

by BcomeITPro In reply to How to Swap Out or Replac ...

Here the Router we have now is CISCO 1760-V-SRST. If I want to replace with the Router Catalyst 3750G, what should I do and what kind of commands do I need to use?

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Reponse To Answer

by cmiller5400 In reply to How to Swap Out or Replac ...

A Catalyst 3750G is a Layer 3 switch (does some routing), not a router. There are many differences between a switch and a router. A switch does not provide any interfaces other than Ethernet ports. So you can't hook up a CSU/DSU to a Layer 3 switch (T1, T3 etc). I suggest that you read this article about the differences between the two. https://learningnetwork.cisco.com/thread/10642

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DOCUMENT!!!

by oldbaritone In reply to How to Swap Out or Replac ...

If the network is well-documented, it will be easy to set up the router. (snicker, snicker)

Most likely, you will need to reverse-engineer the network to find out what's happening and why. If you don't, you're likely to miss something important unless you are just copying the configuration into a duplicate (same make/model) router.

Dump the full router configuration, and understand and document why each of the settings are the way they are. It's OK to say "router default", but it's also important to document the effects of that setting.

Good luck - because most places don't want to give you time enough to document, and then they scream when things go down and you can't figure out why. When they want a change, the documentation makes it easier to foresee side-effects the proposed change may cause.

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