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12.09.2007 at 08:30PM PST, ID: 23012311

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7.2

PPP Adapter RAS Server (Dial In) missing the Line NetBIOS over TcpIP Disabled

Zones: Internet Protocols, Windows Networking

Tags: ppp, adapter, ras, server

I have setup a Server with RRAS and when I do IPCONFIG/ALL I get the Following for the PPP Adapter:
PPP adapter RAS Server (Dial In) Interface:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-53-45-00-00-00
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.9.201
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . :

However, there is a line after the default Gateway which is missing:

NetBIOS over Tcpip. . . . . . . Enabled or Disabled.

This is setup properly on my other server and it works fine, What could I be doing wrong. This is causing a failure from a client trying to connect to this server using a VPN Connection.

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Question Stats

Zone: Networking

Question Asked By: Roger_Kothawala

Solution Provided By: RobWill

Participating Experts: 1

Solution Grade: A

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12.10.2007 at 05:31AM PST, ID: 20441158

Rank: Sage

RobWill:

NetBIOS over TCP/IP is usually disabled by default on external network adapters to "harden" security.
NetBIOS, unless you have WINS servers, is not used by VPNs, and as WINS would not be used until after the connection is made, whether NetBIOS over TCP/IP is enabled or disabled, it is extremely unlikely this would cause a problem with users connecting to the basic VPN. What error number , such as 800, 721, 691, etc., does the client receive when the connection fails. Perhaps we can help to isolate the problem.

12.10.2007 at 08:42AM PST, ID: 20442909

Roger_Kothawala:

Let me clarify, I am able to VPN connect to the server 192.168.8.101 ; I am using VNC, if I connect directly using 192.168.8.101 it connects fine. If I use the WINS Address 192.168.9.203 I keep on getting a user password failure. First, When I reboot the server the PPP Adapter for RAS does not even show up on the IPCONFIG/ALL as now. Please see below:

C:\Documents and Settings\Administrator>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : STRATMOR-SERVER
Primary Dns Suffix . . . . . . . : stratmor.local
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : Yes
DNS Suffix Search List. . . . . . : stratmor.local

Ethernet adapter LAN_192.168.9.101:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom NetXtreme 5721 Gigabit Controll
r
Physical Address. . . . . . . . . : 00-14-22-0C-38-0D
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.9.101
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 192.168.9.101
Primary WINS Server . . . . . . . : 192.168.9.101

Ethernet adapter WAN_192.168.8.101:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/1000 PT Desktop Adapter
Physical Address. . . . . . . . . : 00-1B-21-04-F3-C0
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.8.101
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.8.1
DNS Servers . . . . . . . . . . . : 192.168.9.101
Primary WINS Server . . . . . . . : 192.168.9.101
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Documents and Settings\Administrator>

What is going on???

12.10.2007 at 10:20AM PST, ID: 20443777

Rank: Sage

RobWill:

Ah, that is different !
The adapter is not always present in ipconfig /all. It will appear after a user first connects, and remains for quite sometime but at some point it removes itself, I assume when the DHCP lease expires. Rebooting the server would do the same thing, and remove it. If the PPP adapter is not present try connecting again from the client. If it doesn't show up, sounds like your RRAS config is corrupted. If so I would un-install (right click on Server in RRAS and choose disable) and then re-install.

>>"If I use the WINS Address 192.168.9.203 I keep on getting a user password failure."
Do you mean connecting with VNC by the WINS IP? If so that would have nothing to do with NetBIOS, but if you are having problems when connecting by the NetBIOS name, make sure the VPN clients ipconfig /all includes the WINS server IP.

12.10.2007 at 10:40AM PST, ID: 20443945

Roger_Kothawala:

OK, I did the re-install. SPecified a range of IP addresses from 192.168.9.201 - 192.168.9.225 . Set all of the other paramerters for RRAS just like my other server. Rebooted the server and no change. The PPP adpater does not appear on the ipconfig/all. Are you located in the US? Can you call on 404-695-0273. I can open up access to the Server from a public IP for RDP or preferably VNC ; You can first contact me by e-mail at the following: Roger_Kothawala@bellsouth.net ; Forgive me if I am breaking any rules of this exchnage. I am still new at all of this.

12.10.2007 at 10:45AM PST, ID: 20443985

Roger_Kothawala:

I have made sure that the VPN clients are using the WINS Server. All of this is not available until the PPP Adapter for RAS shows up on my server.

12.10.2007 at 10:53AM PST, ID: 20444054

Rank: Sage

RobWill:

>>"Rebooted the server and no change. The PPP adapter does not appear on the ipconfig/all."
It won't until one user connects. Perhaps try connecting locally to force..
When the first user connects RRAS reserves a block of 10 addresses and assigns the first one of the block to itself. Nothing happens though until one connection is made.

Sorry direct contact by e-mail or phone is not prohibited on Experts-Exchange. All correspondences are supposed to take place on the message board, both so that other experts have the same information available to assist you, and the diagnostic process is available to others who follow with similar problems.

12.10.2007 at 11:03AM PST, ID: 20444124

Roger_Kothawala:

OK, I see what you mean. The PPP adapter did come up on the server. I am able to make the VPN connection but when I try to connect to the WINS address of 192.168.9.202 using VNC I get the error: EIther the User name was not recognized or the password is incorrect for 192.168.9.202. The VNC works fine if I connect using 192.168.8.101 which is the Static IP of the Server.

12.10.2007 at 11:41AM PST, ID: 20444408

Rank: Sage

RobWill:

Not sure I fully understand. Twice you refer to the "WINS address" once for 192.168.9.203 and then 1925.168.9.202 Could you clarify what you mean by WINS address?
WINS as a method for resolving NetBIOS names to IP addresses. I would suggest not using names until everything works. For now just use IP addresses.

Can you ping any other network devices on the 192.168.9.x subnet, other than the RRAS server, from the VPN client?
If not, have you enabled LAN routing in RRAS?

12.10.2007 at 12:20PM PST, ID: 20444711

Roger_Kothawala:

The WINS Address I was refering to is the IP address which appears from Ipconfig/all for the PPP Adapter on the Client PC. I can ping and VNC to the Server WINS Address 192.168.9.101 but I cannot VNC to the PPP adapter address 192.168.9.201 - 225 ( with each VPN Connection it changes ). I also tried to connect to the Client from the Server Using the RRAS address that is reported by the Remote access Clients Status and the same error occurs. I never had this problem on other servers that I setup for VPN. The only difference I see is when I do IPCONFIG/ALL with the Missing NetBIOS Over TCP/IP Line for the PPP adapter. Is there a Security Issue that I could be missing. I Upgraded this server from Server 2003 to Small Business Server 2003 Premium.

12.10.2007 at 12:48PM PST, ID: 20444975

Rank: Sage

RobWill:

>>"The WINS Address I was referring to is the IP address which appears from Ipconfig/all for the PPP Adapter on the Client PC."
That is the SBS server's IP. That is fine.

>>"I cannot VNC to the PPP adapter address 192.168.9.201 - 225"
Perhaps I have misunderstood. Are you trying to connect to the VPN client from the LAN? I was assuming you were trying to connect to the LAN computers as a VPN client?

You had not mentioned SBS before. You sound like you are familiar with Windows servers. Unfortunately that will work against you with SBS (Small Business Server). Most experienced IT staff have problems with there first SBS's as they do not use the wizards. This is EXTREMELY important with SBS.
Your network connections must be configured with the CEICW (Configure E-mail and Internet Connection Wizard) located in Server Management | Internet and E-mail | Connect to the Internet.
The Server end of the VPN needs to be configured with the "Configure Remote Access" wizard and the client with the "create remote connection disk". See:
http://www.lan-2-wan.com/SBS-VPN-instr.htm
These will properly configure firewalls, routing and name resolution for the VPN.

12.10.2007 at 01:40PM PST, ID: 20445457

Roger_Kothawala:

I Upgraded this server from Server 2003 to Small Business Server 2003 Premium hence the Server management is not available. Is this something I can Download and Install.

12.10.2007 at 01:44PM PST, ID: 20445501

Roger_Kothawala:

>>"I cannot VNC to the PPP adapter address 192.168.9.201 - 225"
Perhaps I have misunderstood. Are you trying to connect to the VPN client from the LAN? I was assuming you were trying to connect to the LAN computers as a VPN client?
I do not understand this question. I am connected with serveral computers and the server on a LAN. I establish a VPN connection to the server from one of the PC's. The PPP Adapter IP Address does not connect using VNC but the Server WIns or Static IP connects fine.

12.10.2007 at 02:48PM PST, ID: 20446013

Rank: Sage

RobWill:

>>"I Upgraded this server from Server 2003 to Small Business Server 2003 Premium"
I wasn't aware you could do that upgrade, but assumed if it work you would get the appropriate management tools. I assume you have Exchange, and the other incorporated components?

>>" hence the Server management is not available. Is this something I can Download and Install."
No, it is unique to small business server. It should be located on the start menu or go directly to:
C:\Program Files\Microsoft Windows Small Business Server\Administration\LaunchConsole.exe
Another unique feature that probably completely eliminates the need for the VPN is RWW (Remote Web Workplace). RWW allows you to securely connect to any server or workstation in the domain using remote desktop. See:
http://www.lan-2-wan.com/SBS.htm#q1

>>"....The PPP Adapter IP Address does not ..."
I don't understand why you are trying to connect to the PPP address. This is a dynamic IP assigned to the server or client. You would not use these addresses to connect to anything on the LAN.

You also mentioned SBS Premium. Premium includes ISA Server, which is a firewall. Have you installed that as well.

Accepted Solution

RobWill

12.14.2007 at 07:36AM PST, ID: 20472157

Thanks Roger. Good luck with the changes. Stick to the wizards, and install all defaults.
Cheers !
--Rob

20080236-EE-VQP-29 / EE_QW_2_20070628