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Map network drive does not work after tunnel configuration.

Posted on 2003-10-31
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Last Modified: 2008-03-06
I have connected two networks through the internet using two cisco routers 1760 and a gre tunnel. Everything looks fine, but I cant map drives or it takes too long and disconnects me after some minutes. VNC is not working too, in fact, it works except the display. The screen remains black. What is happening? Is there any other way for me to connect my two separate networks and to map drives?
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Question by:saimir
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by:lrmoore
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How are you routing between the two sites through the GRE tunnel? Are you using a dynamic routing protocol? Can you ping back and forth? How are you doing your name resolution? Do you have a common DNS server/WINS server?
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by:saimir
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Hello Irmoore.
 I have added a tunnel0 interface on both routers and I use static route. From each host on each lan I could ping both routers and after routing through the tunnel I can ping all the hosts from each host on both networks. I am not using wins or dns. For mapping I just use the host ip and the shared folder. Is there any better way to route my networks? I can map but it takes too long and in total there are about 50 hosts on both networks. One network has the ip range 192.168.1.x and the other 192.168.2.x.
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by:lrmoore
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You need some form of Netbios name resolution. WINS is Microsoft's preferred answer prior to Dynamic DNS in Active Directory.

Are they all one domain, or two different domains? Do you have a Windows server on each side?
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by:saimir
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Yes, I have two domains but as I told you I am not using DNS or WINS. I use my ISPs DNS. Do I have to configure one? Or if any other kind of routing is better please let me know. And another thing, I can’t use VNC but using NAT VNC works fine. No firewall configured yet.
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by:saimir
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Someone helps me? Irmoore?
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lrmoore earned 50 total points
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My apologies for taking so long to get back to you.
I still say that it is a NetBios thing that needs name resolution.
This Microsoft link explains how browsing a WAN works:
http://www.microsoft.com/windows2000/en/server/help/default.asp?url=/windows2000/en/server/help/sag_WINS_und_BrowsingWithTcpip.htm

The solution is either local LMHOSTS file, or WINS servers at both locations.

LMHOSTS
http://support.microsoft.com/default.aspx?scid=kb;en-us;314884
http://www.realcomputerguy.com/lmhosts.htm
http://www.labmice.net/networking/lmhosts.htm

------------------------------------------------------
Microsoft Browsing

How Browsing a Wide Area Network Works:
http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q117633&

Troubleshooting the Microsoft Computer Browser Service
http://support.microsoft.com/default.aspx?scid=kb%3ben-us%3b134304
http://support.microsoft.com/default.aspx?scid=kb;en-us;188305

http://support.microsoft.com/default.aspx?scid=kb;en-us;136712
http://support.microsoft.com/default.aspx?scid=kb;en-us;102878

WINS:
http://support.microsoft.com/?kbid=185786
http://www.microsoft.com/ntserver/techresources/commnet/WINS/WINSwp98/WINS02-12.asp

Problems with workgroup networking in XP:

http://support.microsoft.com/default.aspx?scid=kb;en-us;Q308007


Problems seeing workgroups when connected to a router:

http://support.microsoft.com/default.aspx?scid=kb;en-us;Q315978



WIN2K
Windows 2000 server with Active Directory does'nt use NETBIOS for name resolution.

Windows 2000 DNS - Diagnosing Name Resolution Problems
http://www.microsoft.com/windows2000/techinfo/reskit/en-us/cnet/cncf_imp_zvri.asp
FQDN = Fully Qualified Domain Name

Windows 2000 DNS - Solving other common DNS problems
http://www.microsoft.com/windows2000/techinfo/reskit/en-us/cnet/cncf_imp_ibxf.asp

Ping Utility Takes a Long Time to Return Results with NetBIOS Name
http://support.microsoft.com/default.aspx?scid=kb;en-us;267963

NetBIOS over TCP/IP Name Resolution and WINS
http://support.microsoft.com/default.aspx?scid=kb;EN-US;119493


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