sharing files between to private networks in the same building

I want to share files between 2 private networks. Each network has its
own dhcp server, router, etc. and they wish to keep it that way. The
networks are close enough to run a cable between. Would it be possible
to install 2 nics in a server and share the files that way while
keeping each network isolated from the other?

In news:(E-Mail Removed) ups.com,
BrooklynBadass <(E-Mail Removed)> typed:
> I want to share files between 2 private networks. Each network has its
> own dhcp server, router, etc. and they wish to keep it that way. The
> networks are close enough to run a cable between. Would it be possible
> to install 2 nics in a server and share the files that way while
> keeping each network isolated from the other?

I wouldn't put two NICs in a domain controller, otherwise you will be
inviting trouble. You can do it with a non domain controller, such as a
member server or even a non-member. You can also (recommended) purchase a
dedicated router.

--
Regards,
Ace

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft MVP - Directory Services
Microsoft Certified Trainer

Infinite Diversities in Infinite Combinations

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"Quitting smoking is easy. I've done it a thousand times." - Mark Twain

On Jul 15, 7:51 pm, "Ace Fekay [MVP]" <PleaseAs...@SomeDomain.com>
wrote:
> Innews:(E-Mail Removed) roups.com,
> BrooklynBadass <nedh...@hotmail.com> typed:
>
> > I want to share files between 2 private networks. Each network has its
> > own dhcp server, router, etc. and they wish to keep it that way. The
> > networks are close enough to run a cable between. Would it be possible
> > to install 2 nics in a server and share the files that way while
> > keeping each network isolated from the other?
>
> I wouldn't put two NICs in a domain controller, otherwise you will be
> inviting trouble. You can do it with a non domain controller, such as a
> member server or even a non-member. You can also (recommended) purchase a
> dedicated router.
>
> --
> Regards,
> Ace
>
> This posting is provided "AS-IS" with no warranties or guarantees and
> confers no rights.
>
> Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
> Microsoft MVP - Directory Services
> Microsoft Certified Trainer
>
> Infinite Diversities in Infinite Combinations
>
> Having difficulty reading or finding responses to your post?
> Instead of the website you're using, try using OEx (Outlook Express
> or any other newsreader), and configure a news account, pointing to
> news.microsoft.com. Anonymous access. It's free - no username or password
> required nor do you need a Newsgroup Usenet account with your ISP. It
> connects directly to the Microsoft Public Newsgroups. OEx allows you
> o easily find, track threads, cross-post, sort by date, poster's name,
> watched threads or subject. It's easy:
>
> How to Configure OEx for Internet Newshttp://support.microsoft.com/?id=171164
>
> "Quitting smoking is easy. I've done it a thousand times." - Mark Twain

Thanks for replying.
We'd be using a standalone server for this. I just want to make sure
that each network is iosolated and secure from the other and that both
will be able to access a common share.

No two networks can share files if they are isolated and secure. Yhe only
way for a network to be isolated and secure is by not connecting it to
anything! It is secure but pretty limited.

If you connect two networks with a router they become essentially one
network. Neither can be more secure than the other and both are probably
less secure than before.

You will also find that simply installing a router connected to both
networks will not automatically give you routing between the two networks.
If the machines in each network are configured to use some other device
(such as an Internet router) as their default gateway, no traffic will ever
get to your internal router. You will need to add static routes so that
traffic for the private networks goes to your internal router, not to the
gateway router.

"BrooklynBadass" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) ups.com...
> On Jul 15, 7:51 pm, "Ace Fekay [MVP]" <PleaseAs...@SomeDomain.com>
> wrote:
>> Innews:(E-Mail Removed) roups.com,
>> BrooklynBadass <nedh...@hotmail.com> typed:
>>
>> > I want to share files between 2 private networks. Each network has its
>> > own dhcp server, router, etc. and they wish to keep it that way. The
>> > networks are close enough to run a cable between. Would it be possible
>> > to install 2 nics in a server and share the files that way while
>> > keeping each network isolated from the other?
>>
>> I wouldn't put two NICs in a domain controller, otherwise you will be
>> inviting trouble. You can do it with a non domain controller, such as a
>> member server or even a non-member. You can also (recommended) purchase a
>> dedicated router.
>>
>> --
>> Regards,
>> Ace
>>
>> This posting is provided "AS-IS" with no warranties or guarantees and
>> confers no rights.
>>
>> Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
>> Microsoft MVP - Directory Services
>> Microsoft Certified Trainer
>>
>> Infinite Diversities in Infinite Combinations
>>
>> Having difficulty reading or finding responses to your post?
>> Instead of the website you're using, try using OEx (Outlook Express
>> or any other newsreader), and configure a news account, pointing to
>> news.microsoft.com. Anonymous access. It's free - no username or password
>> required nor do you need a Newsgroup Usenet account with your ISP. It
>> connects directly to the Microsoft Public Newsgroups. OEx allows you
>> o easily find, track threads, cross-post, sort by date, poster's name,
>> watched threads or subject. It's easy:
>>
>> How to Configure OEx for Internet
>> Newshttp://support.microsoft.com/?id=171164
>>
>> "Quitting smoking is easy. I've done it a thousand times." - Mark Twain
>
> Thanks for replying.
> We'd be using a standalone server for this. I just want to make sure
> that each network is iosolated and secure from the other and that both
> will be able to access a common share.
>

hi,
another thing that you have to consider - the rights to shares.
you will can give access to users on that local server, or if theese 2
networks are on 2 separated domains then you can make a routing and create a
trusted connections.
--
Dragos CAMARA
MCSA Windows 2003 server


"Bill Grant" wrote:

> No two networks can share files if they are isolated and secure. Yhe only
> way for a network to be isolated and secure is by not connecting it to
> anything! It is secure but pretty limited.
>
> If you connect two networks with a router they become essentially one
> network. Neither can be more secure than the other and both are probably
> less secure than before.
>
> You will also find that simply installing a router connected to both
> networks will not automatically give you routing between the two networks.
> If the machines in each network are configured to use some other device
> (such as an Internet router) as their default gateway, no traffic will ever
> get to your internal router. You will need to add static routes so that
> traffic for the private networks goes to your internal router, not to the
> gateway router.
>
> "BrooklynBadass" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed) ups.com...
> > On Jul 15, 7:51 pm, "Ace Fekay [MVP]" <PleaseAs...@SomeDomain.com>
> > wrote:
> >> Innews:(E-Mail Removed) roups.com,
> >> BrooklynBadass <nedh...@hotmail.com> typed:
> >>
> >> > I want to share files between 2 private networks. Each network has its
> >> > own dhcp server, router, etc. and they wish to keep it that way. The
> >> > networks are close enough to run a cable between. Would it be possible
> >> > to install 2 nics in a server and share the files that way while
> >> > keeping each network isolated from the other?
> >>
> >> I wouldn't put two NICs in a domain controller, otherwise you will be
> >> inviting trouble. You can do it with a non domain controller, such as a
> >> member server or even a non-member. You can also (recommended) purchase a
> >> dedicated router.
> >>
> >> --
> >> Regards,
> >> Ace
> >>
> >> This posting is provided "AS-IS" with no warranties or guarantees and
> >> confers no rights.
> >>
> >> Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
> >> Microsoft MVP - Directory Services
> >> Microsoft Certified Trainer
> >>
> >> Infinite Diversities in Infinite Combinations
> >>
> >> Having difficulty reading or finding responses to your post?
> >> Instead of the website you're using, try using OEx (Outlook Express
> >> or any other newsreader), and configure a news account, pointing to
> >> news.microsoft.com. Anonymous access. It's free - no username or password
> >> required nor do you need a Newsgroup Usenet account with your ISP. It
> >> connects directly to the Microsoft Public Newsgroups. OEx allows you
> >> o easily find, track threads, cross-post, sort by date, poster's name,
> >> watched threads or subject. It's easy:
> >>
> >> How to Configure OEx for Internet
> >> Newshttp://support.microsoft.com/?id=171164
> >>
> >> "Quitting smoking is easy. I've done it a thousand times." - Mark Twain
> >
> > Thanks for replying.
> > We'd be using a standalone server for this. I just want to make sure
> > that each network is iosolated and secure from the other and that both
> > will be able to access a common share.
> >
>
>
>

On Jul 16, 10:47 pm, "Bill Grant" <not.available@online> wrote:
> No two networks can share files if they are isolated and secure. Yhe only
> way for a network to be isolated and secure is by not connecting it to
> anything! It is secure but pretty limited.
>
> If you connect two networks with a router they become essentially one
> network. Neither can be more secure than the other and both are probably
> less secure than before.
>
> You will also find that simply installing a router connected to both
> networks will not automatically give you routing between the two networks.
> If the machines in each network are configured to use some other device
> (such as an Internet router) as their default gateway, no traffic will ever
> get to your internal router. You will need to add static routes so that
> traffic for the private networks goes to your internal router, not to the
> gateway router.
>
> "BrooklynBadass" <nedh...@hotmail.com> wrote in message
>
> news:(E-Mail Removed) ups.com...
>
>
>
> > On Jul 15, 7:51 pm, "Ace Fekay [MVP]" <PleaseAs...@SomeDomain.com>
> > wrote:
> >> Innews:(E-Mail Removed) roups.com,
> >> BrooklynBadass <nedh...@hotmail.com> typed:
>
> >> > I want to share files between 2 private networks. Each network has its
> >> > own dhcp server, router, etc. and they wish to keep it that way. The
> >> > networks are close enough to run a cable between. Would it be possible
> >> > to install 2 nics in a server and share the files that way while
> >> > keeping each network isolated from the other?
>
> >> I wouldn't put two NICs in a domain controller, otherwise you will be
> >> inviting trouble. You can do it with a non domain controller, such as a
> >> member server or even a non-member. You can also (recommended) purchase a
> >> dedicated router.
>
> >> --
> >> Regards,
> >> Ace
>
> >> This posting is provided "AS-IS" with no warranties or guarantees and
> >> confers no rights.
>
> >> Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
> >> Microsoft MVP - Directory Services
> >> Microsoft Certified Trainer
>
> >> Infinite Diversities in Infinite Combinations
>
> >> Having difficulty reading or finding responses to your post?
> >> Instead of the website you're using, try using OEx (Outlook Express
> >> or any other newsreader), and configure a news account, pointing to
> >> news.microsoft.com. Anonymous access. It's free - no username or password
> >> required nor do you need a Newsgroup Usenet account with your ISP. It
> >> connects directly to the Microsoft Public Newsgroups. OEx allows you
> >> o easily find, track threads, cross-post, sort by date, poster's name,
> >> watched threads or subject. It's easy:
>
> >> How to Configure OEx for Internet
> >> Newshttp://support.microsoft.com/?id=171164
>
> >> "Quitting smoking is easy. I've done it a thousand times." - Mark Twain
>
> > Thanks for replying.
> > We'd be using a standalone server for this. I just want to make sure
> > that each network is iosolated and secure from the other and that both
> > will be able to access a common share.- Hide quoted text -
>
> - Show quoted text -

Hi Bill

Thanks for your reply.
I understand your point with regard to isolated/secure.
I fired up Windows 2003 this morning and configured RRAS as a router.
It has 2 nics installed.
I noticed inbound and outbound packet filters for each interface which
allow me to limit source & destination to a single IP/protocol/port
for each network. I also looked at the netgear router (our default
gateway) and noticed it allowed me to enter routes to the lan side of
the network. So when someone attempts to access the share on the other
network the default gateway will know to send them to the Win2k3
router. I think this might work but I won't know for sure until I test
it out or until someone in this group with more experience than me
confirms it. As far as security goes, I think I could configure a
share on each network as a drop box so they can anonymously write
files but can't read or delete.
Thanks

In news:(E-Mail Removed) oups.com,
BrooklynBadass <(E-Mail Removed)> typed:

> Hi Bill
>
> Thanks for your reply.
> I understand your point with regard to isolated/secure.
> I fired up Windows 2003 this morning and configured RRAS as a router.
> It has 2 nics installed.
> I noticed inbound and outbound packet filters for each interface which
> allow me to limit source & destination to a single IP/protocol/port
> for each network. I also looked at the netgear router (our default
> gateway) and noticed it allowed me to enter routes to the lan side of
> the network. So when someone attempts to access the share on the other
> network the default gateway will know to send them to the Win2k3
> router. I think this might work but I won't know for sure until I test
> it out or until someone in this group with more experience than me
> confirms it. As far as security goes, I think I could configure a
> share on each network as a drop box so they can anonymously write
> files but can't read or delete.
> Thanks

In the Netgear router, you want to create a static route the describe the
other network on the other NIC on the server. You would stipulate:
Network ID : such as 192.168.50.0./24
Interface to use: such as the netgear's interface
the IP address to get to that network: such as the server's IP on this side
of the network
and a metric, such as 1

I don;t know what the Netgear settings look like, but that is the jest of
it. If I stated something that is not in the Netgear, ignore it.

Ace
Ace