sites and services

I hope someone can help me understand this.
If you have a domain controller with AD and is a GC server, at a remote
site, and you create a new site in sites and services and add that server to
it, why must it be on a seperate subnet in sites and services in order for
the the computers at the remote site to use it as a logon server? I thought
the computers and server were "smart" enough that when the computers logged
on, the would try and do so at the first domain controller they hit.

server 2003 sp1

TIA
eric

how do you connect both sites? Do you have a router?

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"Eric K" <(E-Mail Removed)> wrote in message news:055AD7AC-E4E8-4364-A5F3-(E-Mail Removed)...
I hope someone can help me understand this.
If you have a domain controller with AD and is a GC server, at a remote
site, and you create a new site in sites and services and add that server to
it, why must it be on a seperate subnet in sites and services in order for
the the computers at the remote site to use it as a logon server? I thought
the computers and server were "smart" enough that when the computers logged
on, the would try and do so at the first domain controller they hit.

server 2003 sp1

TIA
eric

yes there is a router at one location. in the other case we connect with
wireless radios

"Robert L [MS-MVP]" wrote:

> how do you connect both sites? Do you have a router?
>
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
> "Eric K" <(E-Mail Removed)> wrote in message news:055AD7AC-E4E8-4364-A5F3-(E-Mail Removed)...
> I hope someone can help me understand this.
> If you have a domain controller with AD and is a GC server, at a remote
> site, and you create a new site in sites and services and add that server to
> it, why must it be on a seperate subnet in sites and services in order for
> the the computers at the remote site to use it as a logon server? I thought
> the computers and server were "smart" enough that when the computers logged
> on, the would try and do so at the first domain controller they hit.
>
> server 2003 sp1
>
> TIA
> eric

Eric K wrote:
> I hope someone can help me understand this.
> If you have a domain controller with AD and is a GC server, at a remote
> site, and you create a new site in sites and services and add that server to
> it, why must it be on a seperate subnet in sites and services in order for
> the the computers at the remote site to use it as a logon server? I thought
> the computers and server were "smart" enough that when the computers logged
> on, the would try and do so at the first domain controller they hit.
>
> server 2003 sp1
>
> TIA
> eric


"Active Directory uses the concept of sites to logically represent the
physical network topology. Active Directory uses the site topology to
route replication traffic efficiently. Site topology is also used to
route queries and authentication requests"

Eric,

What could be smarter than using the DC in the same IP subnet?

If you want a definitive answer on how AD does these things, I would
recommend posting in the AD newsgroup.


Eric K wrote:
> yes there is a router at one location. in the other case we connect
> with wireless radios
>
> "Robert L [MS-MVP]" wrote:
>
>> how do you connect both sites? Do you have a router?
>>
>> Bob Lin, MS-MVP, MCSE & CNE
>> Networking, Internet, Routing, VPN Troubleshooting on
>> http://www.ChicagoTech.net
>> How to Setup Windows, Network, VPN & Remote Access on
>> http://www.HowToNetworking.com "Eric K"
>> <(E-Mail Removed)> wrote in message
>> news:055AD7AC-E4E8-4364-A5F3-(E-Mail Removed)... I hope
>> someone can help me understand this. If you have a domain
>> controller with AD and is a GC server, at a remote site, and you
>> create a new site in sites and services and add that server to it,
>> why must it be on a seperate subnet in sites and services in order
>> for the the computers at the remote site to use it as a logon
>> server? I thought the computers and server were "smart" enough that
>> when the computers logged on, the would try and do so at the first
>> domain controller they hit.
>>
>> server 2003 sp1
>>
>> TIA
>> eric

We have 3 dc's. 2 at the home location and 1 at a remote location,. All are
in the same subnet. Do I have to put the remore DC in a seperate subnet in
order for the workstations at the remote locatin to use the remote dc to
logon?

"Bill Grant" wrote:

> Eric,
>
> What could be smarter than using the DC in the same IP subnet?
>
> If you want a definitive answer on how AD does these things, I would
> recommend posting in the AD newsgroup.
>
>
> Eric K wrote:
> > yes there is a router at one location. in the other case we connect
> > with wireless radios
> >
> > "Robert L [MS-MVP]" wrote:
> >
> >> how do you connect both sites? Do you have a router?
> >>
> >> Bob Lin, MS-MVP, MCSE & CNE
> >> Networking, Internet, Routing, VPN Troubleshooting on
> >> http://www.ChicagoTech.net
> >> How to Setup Windows, Network, VPN & Remote Access on
> >> http://www.HowToNetworking.com "Eric K"
> >> <(E-Mail Removed)> wrote in message
> >> news:055AD7AC-E4E8-4364-A5F3-(E-Mail Removed)... I hope
> >> someone can help me understand this. If you have a domain
> >> controller with AD and is a GC server, at a remote site, and you
> >> create a new site in sites and services and add that server to it,
> >> why must it be on a seperate subnet in sites and services in order
> >> for the the computers at the remote site to use it as a logon
> >> server? I thought the computers and server were "smart" enough that
> >> when the computers logged on, the would try and do so at the first
> >> domain controller they hit.
> >>
> >> server 2003 sp1
> >>
> >> TIA
> >> eric
>
>
>

How do you manage to have a remote site in the same IP subnet? Are you
using some sort of bridge?

Eric K wrote:
> We have 3 dc's. 2 at the home location and 1 at a remote location,.
> All are in the same subnet. Do I have to put the remore DC in a
> seperate subnet in order for the workstations at the remote locatin
> to use the remote dc to logon?
>
> "Bill Grant" wrote:
>
>> Eric,
>>
>> What could be smarter than using the DC in the same IP subnet?
>>
>> If you want a definitive answer on how AD does these things, I
>> would recommend posting in the AD newsgroup.
>>
>>
>> Eric K wrote:
>>> yes there is a router at one location. in the other case we connect
>>> with wireless radios
>>>
>>> "Robert L [MS-MVP]" wrote:
>>>
>>>> how do you connect both sites? Do you have a router?
>>>>
>>>> Bob Lin, MS-MVP, MCSE & CNE
>>>> Networking, Internet, Routing, VPN Troubleshooting on
>>>> http://www.ChicagoTech.net
>>>> How to Setup Windows, Network, VPN & Remote Access on
>>>> http://www.HowToNetworking.com "Eric K"
>>>> <(E-Mail Removed)> wrote in message
>>>> news:055AD7AC-E4E8-4364-A5F3-(E-Mail Removed)... I hope
>>>> someone can help me understand this. If you have a domain
>>>> controller with AD and is a GC server, at a remote site, and you
>>>> create a new site in sites and services and add that server to
>>>> it, why must it be on a seperate subnet in sites and services in
>>>> order for the the computers at the remote site to use it as a
>>>> logon server? I thought the computers and server were "smart"
>>>> enough that when the computers logged on, the would try and do so
>>>> at the first domain controller they hit.
>>>>
>>>> server 2003 sp1
>>>>
>>>> TIA
>>>> eric