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Simo Sorce simo.sorce at
Thu Dec 28 00:33:27 GMT 2000

On Wed, 27 Dec 2000, Christopher R. Hertel wrote:

> > > Scope IDs, OTOH, do allow you to give the same netbios name to multiple
> > > machines, so it might not be a bad idea to include support for scope, but
> > > that's neither here nor there.
> > >
> >
> > Yes, that's true if you have one network!
> > On different networks machines may have the same NetBIOS name, but I think
> > in this case to address another network the server name will be a dns name
> > not a netbios one....
> But there *is no separate network* where NetBIOS is concerned *unless*
> you use scope.
> The NetBIOS name space is flat, and the NBT system defines a virtual LAN.
> Even when using multiple IP subnets (which requires a WINS server), the
> name space is a single space.
> If you are trying to connect to two different servers that have the
> same NetBIOS name you might be able to fudge it by using DNS names or IP
> addresses to designate the servers.  I am not sure if that works.
> The problem with using scope is that no one has yet produced a client or
> server that implements it to its full potential.  A scope ID is,
> essentially, a mechanism for defining vLANs within a given NetBIOS LAN. If
> Richard's library can allow users to access multiple scopes it will be a
> big win.
> > In effect workgroup is not important, but it may be simply considered
> > optional.
> I'm not sure about this.  I think you need to declare the workgroup you
> are in (when using workgroups) in order for the server to handle the
> authentication.  The same is true for ntdomains, though the
> authentication is handled by the domain controller.

No, workgroup name is not needed in order to handle the authentication,
but you may want to provide it for trusts when you does not want to access
a machine using it's default domain/workgroup.

if you want to access a share on machine A of domain X you need only to
provide a valid domain X username, but if you want to open the shar as
user simo of machine A (not user of domain X) you would need to use A\simo
as username to tell the machine to authenticate the user againts it's own
sam and not against the domain sam.


Simo Sorce - Integrazione Sistemi Unix/Windows - Politecnico di Milano
E-mail: simo.sorce at 02 2399 2425 - 02 2399 2451
Be happy, use Linux!

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