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4-3: Help: My RAS PPP/SLIP connection is not working?




Description

This article is from the Windows NT Internet FAQ, by sscoggin@enet.net (Steve Scoggins) with numerous contributions by others.

4-3: Help: My RAS PPP/SLIP connection is not working?

You probably have one of three problems either the slip link is not
working, or your NT system is not accessing the UNIX service DNS,
or the IP routing is messed up between your NT system and your slip
providers UNIX network.

1.) Can you ping any addresses on the other end of the slip or ppp
link? Try pinging the UNIX server or the gateway. Drop to DOS and
use the ping command. Use the numeric IP address.

2.) Try turning VJ compression off. Sometimes telnet and FTP will
not work if you have VJ compression on and the system you are
connected to does not support VJ compression. If you are using
TIA be sure and set the NT option for VJ compression to off.
Since, TIA does not support VJ compression.

3.) Check and confirm that the following are correct:
Double click on the Main program group icon, then double click on
the Control Panel icon, then double click on Network icon, select
the TCP/IP protocol and click on the configure button. Click on

DNS and verify the following is correct:

A.) The Host Name for your PC
B.) Your Domain Name
C.) Add the proper DNS IP address or addresses for your slip/ppp
service.

Click on OK to confirm DNS changes
Click on OK to close out the TCP configuration dialog.
Click on OK to close the Network configuration dialog.

If you are not sure please ask slip/ppp service providers system
admin. to confirm them for you.

4.) Drop the baud rate to 9600, some UARTs do not work above 9600
without UART receiver overruns.

5.) Finally try finding someone else who is using NT slip or ppp
at your location. Ask the system admin. if anyone else is
successfully running NT via slip or ppp.

6.) Can you dial in using slip or ppp from a known working system
using your username and password?

7.) Are you using dynamic IP addressing (bootp)?

With slip you will have to manually login using Rasphone and
then type your IP into the little white box at the lower right
side of the screen and click on the DONE button. For PPP you
can automate the login follow the directions under question no.
27 below. Also a NT workstation using RAS to dial into a NT
server will work with dynamic IP if the NT server is configured
for DHCP.

8.) Are you using a static IP address?

The first time you dial in using the RAS SLIPP use the manual
login option, you will get a screen a 0.0.0.0 IP address displayed
in a white box at the bottom of the screen. Type in your assigned
SLIP IP address and click on the DONE button. The IP address will
be written into the rasphone.pbk as the SlipIpAddress=NNN.NNN.NNN.NNN
entry under the currently active selection in the rasphone.pbk file
located in the /winnt35/system32/ras directory.


9.) After you dial in and login in shell out to does and see what
the netstat -rn utility shows.

My netstat -rn returned the following info after my slip link is
connected. My IP address is 198.60.143.32 and my slip service
providers gateway is 168.158.8.5

Network Address Netmask Gateway Address Interface Metric
0.0.0.0 0.0.0.0 198.60.143.32 198.60.143.32 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
198.60.143.32 255.255.255.255 127.0.0.1 127.0.0.1 1
198.60.143.255 255.255.255.255 198.60.143.32 198.60.143.32 1
224.0.0.0 224.0.0.0 198.60.143.32 198.60.143.32 1
255.255.255.255 255.255.255.255 198.60.143.32 198.60.143.32 1

Route Table

Active Connections
Proto Local Address Foreign Address State
TCP 198.60.143.32:1249 168.158.8.5:119 ESTABLISHED



 

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