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2 router + 2 broadband connection on a single

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Name: teppei
Date: September 1, 2009 at 04:02:28 Pacific
OS: Windows XP
Subcategory: Routers and Hubs
Comment:

I have 2 routers, both of them has its own broadband conection.

How can I link both routers without any problem in IP?

I have 2 routers (8 ports each) and 12 PCs and a server.

Please, help me to configure the network without turning off the DHCP one of the router.



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Response Number 1
Name: paulsep
Date: September 1, 2009 at 09:22:29 Pacific
Reply:

Could you explain, why you'd like to do this, and why DHCP should keept running on both routers?

This is necessary for me to understand, what you're planning to do.

Please send a reply, if you solved the problem !!!


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Response Number 2
Name: Curt R
Date: September 1, 2009 at 10:10:20 Pacific
Reply:

Yes, you need to explain what it is you're trying to achieve here since at the outset, your request makes no sense without more detail.


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Response Number 3
Name: wanderer
Date: September 1, 2009 at 12:18:18 Pacific
Reply:

"How can I link both routers without any problem in IP?"

set one dhcp servers scope to half the subnet and set the other dhcp scope to the other half of the scope.
example:
router1: 192.168.1.3-130 gateway 192.168.1.1 [router1's ip]
router2: 192.168.1.131-254 gateway 192.168.1.2 [router2's ip]

connect a crossover cable between routers lan ports so they can communicate.

You would be far ahead of the game if you bought a dual wan port router.


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Response Number 4
Name: paulsep
Date: September 1, 2009 at 12:33:58 Pacific
Reply:

Wanderer
When both routers are linked, the computers connected to the routers do see both DHCP-servers and will get an ip address randomly from one of the routers.

Please send a reply, if you solved the problem !!!


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Response Number 5
Name: wanderer
Date: September 1, 2009 at 12:52:51 Pacific
Reply:

Yep. And I take it you think that is a problem? Why?


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Response Number 6
Name: paulsep
Date: September 1, 2009 at 13:10:09 Pacific
Reply:

It might be a problem.
Otherwise, you never need two DHCP servers.
It can be managed by one routers DHCP server and you don't have to split the network.

Easy going...

Please send a reply, if you solved the problem !!!


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Response Number 7
Name: wanderer
Date: September 1, 2009 at 13:30:24 Pacific
Reply:

I believe in the following guidelines;

1. give the poster what they ask for
2. suggest only what works.
3. address the poster at the computer literacy level they appear to be at.

"without turning off the DHCP one of the routers"

If teppei messes up the lease times.. then teppei will be back :-)


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Response Number 8
Name: paulsep
Date: September 1, 2009 at 14:38:49 Pacific
Reply:

One could see it in this way.
I think, if one asks for a solution, it's always a good idea, to mention disadvantages and give suggestions, to avoid problems e.g. with 2 DHCP servers.

I think the best way is, to keep it as simple as possible.
So the same way, as I do in my networks, to avoid confusions.

Please send a reply, if you solved the problem !!!


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Response Number 9
Name: wanderer
Date: September 1, 2009 at 14:42:55 Pacific
Reply:

There are no problems with multiple dhcp servers as long as their scopes don't overlap.... and they are authorized :-)


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