Re: NetBIOS over IP -- XP to NT via VPN
From: Randy Shearer (rshearer_at_sympatico.ca)
Date: 10/06/04
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Date: Wed, 6 Oct 2004 15:39:08 -0400
"Lanwench [MVP - Exchange]"
<lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote in message
news:el0pCQ7qEHA.2900@TK2MSFTNGP12.phx.gbl...
> Randy Shearer wrote:
> <snip>
>
> >>> Ping by name? Yes I can. But the resolution comes from the LHHOSTS
> >>> file. WINS is availalble on the far LAN, but I initially put entries
> >>> into the LMHOSTS for speed of access, and becasue the names I need
> >>> are always static.
>
> Then why do you need to browse?
Although I can resolve to the computer name, I can see it's computer name.
In a command window I can ping by the name or the IP, but if I "net view" I
get an error 53. Same for net use, of course. So that is why I need to
browse.
>
> <snip>
>
> > Thanks for the 150800.... I already had found that article, and have
> > it printed.
> > I have the #DOM and 1b entries. This provides resolution to the
> > address and defines it's role, right?
> > What do you refer to when you say "this isn't needed?"
>
> Meaning, if you have everything you need to access in your lmhosts file,
is
> browsing across the VPN connection really necessary? You don't need to
> browse just to access something, presuming you can resolve the name via
> LMHOSTS (and have the #DOM, #PRE, 0x1b setup properly in there)
>
> Can't you just go to \\server\share?
> or even \\server ?
I can ping to \\server, wich is just name resolution from the lmhosts... to
browse to \\server\share is to really browse, and that does not work. So,
no mapping will work. Error 53.
>
> Do you need to browse to, use, objects that don't have static IP addresses
> on the remote network?
Everything I need to map to has a static IP. It is just a few servers.
>
> >>> For interest sake, I tried adding my WINS server
> >>> address to my remote PC... no change...
>
> Did it register in the WINS database? Is *everyone* registering in the
WINS
> database?
I don't know how to check that, being remote from the wins server. But when
at the office, I recall looking at the wins database (maybe a year ago, and
it had everybody on the LAN. We didn't have any remotes back then.
> >>
> >> Don't use your LMHOSTS file when trying this if you have dupes.
> >> Rename it & reboot or run nbtstat -R.
> >> Does your computer show up as registered in the WINS? database? Do
> >> all servers & clients show up in WINS?
> >>
> >
> > What are "dupes" ???
>
> I probably didn't phrase that very well. I'd disable the use of the
LMHOSTS
> file when trying to use WINS to test - and make sure you're getting the
info
> from WINS.
> >
> > About not using the hosts entries... you seem to prefer Wins over
> > host files.
>
> Yes.
>
> > Is there something that my wins server will do that
> > lmhosts does not?
>
> Allow you to browse objects on the remote network - which LMHOSTS doesn't
> really do.
>
> > I understood that lmhosts does everything that a
> > Wins server can, just not automated.
>
> Not quite - WINS is dynamic, so clients register to it, regardless of IP
> address. If your computer, and all the computers you want to browse, are
> registered in the WINS database, you can browse and see them. LMHOSTS
won't
> do that; entries in it are static. It doesn't let you browse - it just
maps
> NetBIOS names to IP addresses.
>
> > I also understood that Wins
> > does not resolve "shares" or resources on the hosts. Am I am wrong?
>
> It resolves NetBIOS names - and once you've got that, and can see the
> object, you can see the shares on it by browsing.
ok - but Wins won't help with browsing past/inot the pc name will it? If
so, then Wins would have a listing of each pc's shared resources? I didn't
think Wins did that. ??? Does Wins not just get you to the IP address,
and then your direct communication using NetBIOS lets you query the machine
for it's shared resources? I don't want to say your wrong, as I am very
eager to learn, and you're likely right... in fact I hope you are. :) I
am simply stating the way I thought is was. I will try a Wins setup
again... more carefully this time ;o)
>
> > Will Wins bring something to the table here that enable me to see
> > those shares?
>
> If you can get it working so you can browse, you can see the objects & any
> shares defined on them.
>
>
> >> If you type in
> >>
> >> nbtstat -c
> >>
> >> What do you see?
>
> ?
> Do you see a 1b entry for your domain? 1c?
Yes, I see the 1C for the PDC address, and the 03, 00, 20.
>
> >>
> >>> my remote pc still fails to
> >>> see the NetBIOS share names on the NT Server, and thus cannot map a
> >>> drive letter.
>
> How are you looking?
oh, why that is kinda personal don't you think? ... but I think I am
looking ok today.
Ohhhhh... :) you mean how am I looking at the machine... :) sorry, I am
getting silly now. :)
I was using "net view" to try and see the shares.
>
> >>> From my reading NetBIOS over IP needs to be working, and although it
> >>> is enabled in properties of both the network interfaces, it does not
> >>> show as enabled. If it deos not work, I don't think I can make the
> >>> connection.
> >>> So back to my question... Do you know how to force my interfaces to
> >>> use NetBIOS over IP?
>
> >> Perhaps this is related to NAT - are you behind a router/gateway.
> >> You've already set NetBIOS over TCP/IP to be enabled.
> >
> > no NAT, just a direct connect to a DSL modem.
no, the DSL gives my PC a valid internet address, on the PC's PPP interface,
so no nat.
there is a firewall, and I will try to disable it for my next wins test...
but in my trials to date it has not made a difference.
I have just created open ports when needed. I've been getting the same
results with or without the firewall enabled. I did in fact spend two days
on this with no firewall installed at all. I thought it best to remove it
totally to be sure it was not the problem.
In any case, you have me wondering about getting Wins working.. so I will
take the firewall out when I try Wins again.
>
> Firewall anywhere in use?
> Are you sure your DSL modem isn't doing NAT as well?
> Is the router on the remote network doing NAT? I'd presume it is.
> I'm not sure whether this is the problem, but it may be related.
NAT at the other end should not be a problem, should it?
>
> >
> >> But I'm curious about the WINS stuff if you care to check into it
> >> further. It really is supposed to work.
> >>
> >
> > I will try using only wins... but even if wins does do more than I
> > thought (into resolving share names),
>
> That's not what it does. Think of it like a DNS database you can do
lookups
> to, but for NetBIOS names.
>
> > is NetBIOS traffic still not
> > needed to see the data in that share.
>
> No.
hmmm.. ok. I can see that I'll be having some homework after this is all
said and done. :)
>
> >
> > So I keep coming back to what everybody I talk to is avoiding...
> > NetBIOS over IP is supposed to be working, and it is not. Will I not
> > need this working regardless? From the many hours of reading I have
> > done, this will be needed for the browsing to work. Why does does it
> > show as Disabled?
>
> Again, I can't say. It could be the router on the other side? I don't use
> PPTP - I use IPSEC VPN through a firewall & a proprietary client, and with
> AD on the remote network, usually just have the remote user specify the AD
> DNS server for resolution, so I'm not quite sure. Browsing over VPN
> connections can be very difficult.
I believe the firewall client I have here (software), from Netscreen, is
using IPSec. I am connecting to a Netscreen appliance at the office. The
VPN seems to setup fine. I can do anything I wan't to an XP machine at the
office (browsing, mapping, rights, etc...). It is only the NT servers I
cannot see properly. My understanding is that XP will use Dynamic DNS to
resolve other network machines that also support Dynamic DNS... but NT not
supporting this, it must use "NetBIOS over IP" to accomplish the same. (at
least that is what I have read over the past week.)
>
> >
> >
> >
> >> Some possibly interesting reading:
> >> http://www.faughnan.com/netbios.html
> >>
> >
> > thanks... have read this too.
> >
> >
> >
> >>>
> >>> thanks for taking the time to consider this...
> >>
> >> No prob - hope it's actually helping.
> >>>
> >>> Randy
>
>
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