ppp lcp extensions | TechRepublic Forums

davisins · 2000-10-31T02:52:51.000Z

How do I enable ppp lcp extensions in Win NT 4.0. Does it need to be enabled to make a successful RAS connection Also in trying to connect to RAS in Win NT 4.0 from Win 98 SE it says cannot establish set of protocols neccesarry to make connection. Win 98 SE dials the server and it answers and then asks for the password which I type in on the client machine and then it gives the the message cannot establish connection. I think I am very close to establishing ny first RAS connection. Please help so I can sleep tonight. Maybe I will have to speak with someone on the phone to get this to work. Have a nice day. Thanks Mike R. Davis (561) 963-5753

by avachon Oct 31, 2000

Hi, I take it you got ras server service started - good! Actually, let's do this - when you open dial-up networking from my computer on your 98 machine you'll see "phonebook entry to dial" (on my test machine I have an entry for my server's name, one for msn, one for pptp so by clicking on the arrow at the end of the box I can choose which phonebook entry I want). Okay, let's say I pick "my server". Click on the black arrow on the box that say's "more." Then click on edit entry and properties (first choice). The opening screen will show the phone number to your server and the modem you have configured. Click on the server tab. There's your network protocol. If your network is using netbeui, click that (make sure your server is running thatprotocol too and also make sure netbeui or whatever you are running is installed under protocols (located in network applet through control panel or by right clicking network neighborhood|properties). Uncheck (or leave blank enable software compression and enable ppp lcp extensions - sorry, they would be checked if connecting to the internet). Now click on the tab for security. For a first attempt, click the radio button "accept any authentication including clear text" (you can play with authentication later). Click okay, then dial. Make sure ras service is running on nt machine and proper permissions are granted. Make sure both machines are using the same protocol (how the machines communicate). netbeui is the easiest because it is self-configuring. Sounds as if you have one protocol running on 98 (check to see what is running - open network applet in control panel, look at protocols); do the same on nt machine. Once you are sure both machines are running the same protocol you shouldbe okay. Also make sure file and print sharing is set on the 98 machine (look at network applet).

by davisins Oct 31, 2000

The answer states to edit entry in Win 98. You can only edit phonebook entry on Win NT. Again I am simply trying to connect to a Win NT RAS Server from a WIn 98 machine. I of course have 2 phone lines and 2 modems and everything is compatable in NT. Win 98 dials out and NT picks up and during the password authentication process it gives the error # 720 which is what I stated earlier today. Cannot establish set of protocols neccesarry to make connection. Again please help. I will give youalmost anything to get this working properly. All my TechPoints if thats what it takes. Yikes.

by avachon Oct 31, 2000

Okay Mike, I'm not interested in all your points; let's try and resolve this. Error 720 is a protocol problem (yes, you stated protocol mismatch but not error #720 in prior question). Anyway, what protocol is your 98 machine running? (netbeui? tcp/ip?) and what protocol is running on the nt machine? That information will help since I am trying to guess what protocol is running. I'll check back.

by avachon Oct 31, 2000

Check your ras properties on the nt machine. When you open ras properties and see your modem, click on network. Mid-way on the screen is Server settings: allow remote clients running:
netbeui
tcp/ip
ipx
Be sure you have the correct protocol checked and configured for the client (the 98 machine. So, for example, if the client is setup to run netbeui and the server is configured to allow remote clients running tcp/ip you will have a protocol mismatch. Also on ras properties screen go to configure and try setting the server to dial out and receive calls.

by avachon Oct 31, 2000

Your comment got me thinking. When you open my computer and you see your phone book entry to your ras server, RIGHT click on it and hit properties - this is where you see a lot of the configuration stuff. Make sure that where it says "type of dial up server" it says "PPP, Internet, Windows NT server, Windows 98". Also, below, select the correct network protocols. It dawned on me that when you said all you saw was the phonebook entry, you were opening the entry and not right clicking the entry icon - sorry - I should have been clearer in my step-by-step.
Hope this clears it up Mike.

by shanghai sam Oct 31, 2000

I hate to be a bother but I have done everything you asked. All protocols are installed on the Win 98 machine. NetBEUI, IPX/SPX Compatible, TCP/IP. Advanced Options: Log on to network, Enable Software Compression. TCP/IP Settings as follows: Server assigned IP address is checked, Server assigned name server addresses is checked, Use IP header compression & Use default gateway on remote network are also checked.

What else could be going on. If you want I will pay you to get this running. How much do you want. Or do you know someone who could or would want to walk me through this. Again sorry for the hassle but it just seems no matter what I try it fails. Also in the many attempts to connect to the RAS server I have been experimenting and found that if I leave the password blank or the DOMAIN blank it will prompt me for the proper password. After the second time it will disconnect me and give error # 691. So I have to believe that RAS server is seeing the 98 machine attempting to connect. I have triple checked the settings in RAS to make sure the password is correct and rebooted several times.

With respect to the protocols installed on the NT machine they are as follows: NetBEUI Protocol, NWLink IPX/SPX Compatible Protocol, NWLink NetBIOS, TCP/IP Protocol. I do notice one thing that may be an issue within the Protocols tab of Network in NT. NetBEUI is at top of the list and when I try to click on Properties it is greyed out. Why is this. All the other protocols you are able to get the property info from them. I am very frustrated to say the least. Maybe you could just tell me what it looks like on the client machine when you are actually connected to RAS. This may make me feel better. Justkidding. Hope to talk with you soon. You so far are my only hope to get this resolved.

by avachon Oct 31, 2000

Okay Mike, let's start again. Ras can be a pain to set up, so be patient. This is the best way to learn (though it doesn't seem it, I know). Nt server has ras set up. You have many protocols, you don't need that. You need one protocol that is commonbetween the server and your client. Having all the IPX stuff will only slow you down (and is probably confusing nt). I use tcp/ip and I run dhcp and wins. That way the client gets an ip address (from the dhcp scope) and wins allows for netbios name to ip address translation. Then on ras properties, my modem (com2) shows up and click on configure (dial out and receive calls) and then network | tcp/ip (for now you can set authentication to clear text). Click tcp/ip configure and I have it set to "this computer only" and "automatically assign ip addresses from dhcp server" which you must have set up for this option obviously. Click continue to close out of ras. Make sure you reinstalled your service pack on the nt machine. Reboot. On the client, you made a phone book entry. You configure that by right clicking on the entry and making sure server type is PPP:... check log onto network and enable software compression. Choose protocol as tcp/ip and configure. Make sure ras service started on server and permissions set on account (error 691 refers to invalid user account or password). Now I thought using netbeui would be easier the first time than tcp/ip. That would mean netbeui on the server and on the client (netbeui has no propertiesto configure that's why it appears greyed out). Maybe it would be helpful if you listed what you have set up on the client when you rightclick on the phone entry|properties. I can map it here to try and find the problem.

by avachon Oct 31, 2000

Are you logging into the nt machine as the administrator? Are you using the admin username and password on the client? When you click on permissions on ras admin, are you giving your account dial in permission? Is it set to no call back? Just some authentication things to check.

by avachon Oct 31, 2000

Hi Mike, I'm going to go grab my roommates 98 machine and configure it to call my nt server. Let's see if we can get this stuff working - it's easier for me to do that than trying to recall all the 98 screens.

by avachon Oct 31, 2000

Here's what I did:on 98 machine, created phone book entry and called it ras server; entered phone number, clicked okay. Right clicked on the ras server phone entry, hit properties. Type of dial up server:PPP:Internet, windowsnt server, windows 98. Advanced options: checked logon to network, enable software compression (on nt server I have authentication setup so I had to check require encrypted authentication and require data encryption). On allowed network protocols I checked only tcp/ip (that's only what my server runs). Under tcp/ip settings I checked "server assigned ip address" (I run dhcp on the server) and "server assigned name server addresses" (I run wins on the server). I also checked Use IP header compression and use default gateway on remote network". Now, if you do not have dhcp and wins setup, use netbeui. Just click that box on the 98 machine and not tcp/ip or ipx/spx. Then on nt machine, make sure netbeui is loaded (no configuration)and on the server you can keep tcp/ip if you want/need to. On nt machine, I had ras server service running and I used my admin username and admin password for the dial up window on the 98 machine. The admin account on my server has grant to permission on ras admin with no callback checked. Does this help?

by avachon Oct 31, 2000

Here's what I did:on 98 machine, created phone book entry and called it ras server; entered phone number, clicked okay. Right clicked on the ras server phone entry, hit properties. Type of dial up server:PPP:Internet, windowsnt server, windows 98. Advanced options: checked logon to network, enable software compression (on nt server I have authentication setup so I had to check require encrypted authentication and require data encryption). On allowed network protocols I checked only tcp/ip (that's only what my server runs). Under tcp/ip settings I checked "server assigned ip address" (I run dhcp on the server) and "server assigned name server addresses" (I run wins on the server). I also checked Use IP header compression and use default gateway on remote network". Now, if you do not have dhcp and wins setup, use netbeui. Just click that box on the 98 machine and not tcp/ip or ipx/spx. Then on nt machine, make sure netbeui is loaded (no configuration)and on the server you can keep tcp/ip if you want/need to. On nt machine, I had ras server service running and I used my admin username and admin password for the dial up window on the 98 machine. The admin account on my server has grant to permission on ras admin with no callback checked. Does this help?

by davisins Nov 6, 2001