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2 Different "Default Gateway" with 1 Windows DHCP server

 
 
=?Utf-8?B?V2F5bmUxMjM=?=
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      02-19-2004, 02:06 AM
Hi there. I'm new here and have a question about how to assign 2 different gateway to client computers in the same Windows 2000 domain. We have 2 ISPs (2 ADSL routers), so giving client computers different "Default Gateway" will help to balance the Internet traffic. The "Primary and Alternate DNS servers" can be the same. Is it possible to do this with the Widnows 2000 DHCP

Any suggestion is highly appreciated!!!
 
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Rob Elder, MVP-Networking
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      02-19-2004, 02:14 AM
You can add multiple gateways in your DHCP scope options. It won't work for
load balancing, though. The second gateway will only be used if the first
is not available.

"Wayne123" <(E-Mail Removed)> wrote in message
news:87936996-53DB-4363-B264-(E-Mail Removed)...
> Hi there. I'm new here and have a question about how to assign 2

different gateway to client computers in the same Windows 2000 domain. We
have 2 ISPs (2 ADSL routers), so giving client computers different "Default
Gateway" will help to balance the Internet traffic. The "Primary and
Alternate DNS servers" can be the same. Is it possible to do this with the
Widnows 2000 DHCP?
>
> Any suggestion is highly appreciated!!!



 
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Jose
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      02-19-2004, 02:47 AM
There are routers out there that allow two internet
connections. And they'll even do the load balancing.

That's one option.


>-----Original Message-----
>Hi there. I'm new here and have a question about how to

assign 2 different gateway to client computers in the same
Windows 2000 domain. We have 2 ISPs (2 ADSL routers), so
giving client computers different "Default Gateway" will
help to balance the Internet traffic. The "Primary and
Alternate DNS servers" can be the same. Is it possible to
do this with the Widnows 2000 DHCP?
>
>Any suggestion is highly appreciated!!!
>.
>

 
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=?Utf-8?B?V2F5bmUxMjM=?=
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      02-19-2004, 03:06 AM
Not what I need. I want some computers to use the first "gateway" and others computers to use the second

Thanks anyway!
 
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=?Utf-8?B?V2F5bmUxMjM=?=
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      02-19-2004, 03:11 AM
Unfortunately we don't have the budget to buy a fail-over router or the similar type of thing. I'll have dig out an alternative for our current needs. Darn! What a time for us IT people!!

Thanks for your post!
 
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sharad
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      02-19-2004, 06:36 AM
Try this
In the DHCP remove the existing scope and add it back giving details like
this (e.g. if you are using 192.168.x.x)
:Start IP 192.168.0.1 End IP 192.168.0.254 and Subnetmask 255.255.255.128
(25 bits), when you click next after giving as above DHCP will ask do you
want to create a superscope contatining two scope each with 128 adresses,
Select yes, and click next

So it will create a super scope containing two scope 'a' & 'b' 128 addresses
each. Now say you have 50 users only. In scope 'a' chage now the IP range
from 192.168.0.1 to 192.168.0.25. in scope 'b' make it from
192.168.0.128 to 192.168.0.160 (about 10-15 % extra)
In scope 'a' options give one router and in scope' b' options give the
another.

Sharad

"Wayne123" <(E-Mail Removed)> wrote in message
news:57C2D061-55B4-4A55-A261-(E-Mail Removed)...
> Unfortunately we don't have the budget to buy a fail-over router or the

similar type of thing. I'll have dig out an alternative for our current
needs. Darn! What a time for us IT people!!!
>
> Thanks for your post!



 
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Marc Reynolds [MSFT]
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      02-19-2004, 11:58 AM
You could use User Class options to do this. See 240247 How to Create a New
DHCP User or Vendor Class
http://support.microsoft.com/?id=240247

810735 White Paper: Dynamic Host Configuration Protocol for Windows 2000
Server
http://support.microsoft.com/?id=810735

Or
You could create reservations for some of the clients using the 2nd default
gateway.


--

Thanks,
Marc Reynolds
Microsoft Technical Support

This posting is provided "AS IS" with no warranties, and confers no rights.


"Wayne123" <(E-Mail Removed)> wrote in message
news:9241C757-5DD0-46F6-ABEF-(E-Mail Removed)...
> Not what I need. I want some computers to use the first "gateway" and

others computers to use the second.
>
> Thanks anyway!



 
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=?Utf-8?B?V2F5bmUxMjM=?=
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      02-19-2004, 11:41 PM
Will this still create Class C addresses? I'm not sure when the subnet mask becomes 255.255.255.248, whether our Intranet still works.
 
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=?Utf-8?B?V2F5bmUxMjM=?=
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      02-19-2004, 11:41 PM
Will definitely give it a shout! Thanks!
 
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sharad
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      02-20-2004, 05:38 AM
With subnet mask 255.255.255.248 you have only 6 IP addresses, so depends
...if your intranet has less than this it will work. But with
255.255.255.128 , it does work and am using it.
Any way Mark's solution is also neat.

"Wayne123" <(E-Mail Removed)> wrote in message
news:0DA6462C-C89E-43D9-B3FD-(E-Mail Removed)...
> Will this still create Class C addresses? I'm not sure when the subnet

mask becomes 255.255.255.248, whether our Intranet still works.


 
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