how to block access for outer LANs?

[cubus]

Small LAN, 4 pcs. There are also few other LANs. All LANs connected to
internet through one router; there are also switch between our LANs and
router.

How to block access to our LAN ( 'shared doc' folder) for all outer LANs?
(access via 'My Network Places')

 

[Yves Leclerc]

Various ways!

One way: local small LAN should have different "Workgroup" than the other
LAN. Assign "Password" to "shared folder". Reconnect "shared folder" to
other local PCs, using the password.

 

[WTC]

Small LAN, 4 pcs. There are also few other LANs. All LANs connected to
internet through one router; there are also switch between our LANs and
router.

How to block access to our LAN ( 'shared doc' folder) for all outer LANs?
(access via 'My Network Places')

Use a firewall and deny access to the IP addresses (or Computer's Names) of
the network computers. If these computers have a Static IP then use the IP
address. If the computers do not have a static IP then use the Computer's
Name.

 

[cubus]

Various ways!

One way: local small LAN should have different "Workgroup" than the other
LAN. Assign "Password" to "shared folder". Reconnect "shared folder" to
other local PCs, using the password.

First, I dont know what "Workgroup" names have other LANs, I see only shared
outer folders in "My Network Places", hope its different.
I dont know how to "Assign "Password" to "shared folder", and dont know how
to reconnect "shared folder" to other local PCs, using the password. Could
you be more detail?

thanks

 

[cubus]

Use a firewall and deny access to the IP addresses (or Computer's Names)
of
the network computers. If these computers have a Static IP then use the IP
address. If the computers do not have a static IP then use the Computer's
Name.

I have done this already. I want additionally "Assign "Password" to "shared
folder", and reconnect "shared folder" to other local PCs, using the
password. How?

 

[cubus]

Various ways!

One way: local small LAN should have different "Workgroup" than the other
LAN. Assign "Password" to "shared folder". Reconnect "shared folder" to
other local PCs, using the password.

Not sure that is correct- unlike the personal folders, shared folders cannot
be made private. The contents of these folders are always available to
anyone who uses the computer.

 

[NobodyMan]

I have done this already. I want additionally "Assign "Password" to "shared
folder", and reconnect "shared folder" to other local PCs, using the
password. How?

You don't. Unlike previous DOS based versions of Windows, the NT
Kernel does not use passwords to protect folders and decide who can
access what and at what level. This is done using Permissions.

 

[Steve Winograd [MVP]]

Various ways!

One way: local small LAN should have different "Workgroup" than the other
LAN. Assign "Password" to "shared folder". Reconnect "shared folder" to
other local PCs, using the password.

Unfortunately, those suggestions won't help. Workgroups don't provide
any type of access control or security in a Windows network. A
computer in any workgroup can access a computer in any other
workgroup. And Windows XP doesn't have passwords for shared folders.

The simplest solution would be to get an additional broadband router,
connect the computers to its LAN ports, and connect its WAN (Internet)
port to the existing switch. Make sure that the new router uses a
different subnet than the old one.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

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