Dial-up and LAN?

  • Thread starter Thread starter hawk
  • Start date Start date
H

hawk

I have a small home network with a router providing internet connection
via a cable modem to a WinXP and two Win98 computers. Everything works
perfectly.

This morning, I decided to install a dial-up connection on the WinXP
computer for back-up. That also worked perfectly. But when I then closed
the dial-up connection, the internet connection on the LAN was "broken". I
had to uninstall the dial-up and power everything down and restart to get
it working again.

Is there any way to have both a dial-up and LAN internet connection? If
so, what procedures must I follow to prevent one from affecting the other?

Regards, hawk
 
This morning, I decided to install a dial-up connection on the WinXP
computer for back-up. That also worked perfectly. But when I then closed
the dial-up connection, the internet connection on the LAN was "broken". I
had to uninstall the dial-up and power everything down and restart to get
it working again.
Click to expand...

The dial up should not affect your LAN connection at all if the
machines are on the same subnet.

Even if they are on different subnets, any routing should be reset
whenever the dial up connection is hung up.

Try it again and if it's still not working post the details of the
routing table before and after.


Jim.
 
The dial up should not affect your LAN connection at all if the
machines are on the same subnet.

Even if they are on different subnets, any routing should be reset
whenever the dial up connection is hung up.

Try it again and if it's still not working post the details of the
routing table before and after.

Jim.
Click to expand...

Where is the routing table? And where is the subnet defined?

Thanks and regards, hawk
 
Well, I guess I have solved this problem. I set up the dial-up connection.
Then, before I use the dial-up, I disable the Network Card on the WinXP.
The dial-up works just fine. When I finish with the dial-up, I enable the
network card and everything is back to normal with no problems. This
leaves the rest of the network operating normally while I fiddle with the
dial-up.

Regards, hawk
 
Well, I guess I have solved this problem. I set up the dial-up connection.
Then, before I use the dial-up, I disable the Network Card on the WinXP.
The dial-up works just fine. When I finish with the dial-up, I enable the
network card and everything is back to normal with no problems. This
leaves the rest of the network operating normally while I fiddle with the
dial-up.
Click to expand...

It might be a workaround but it's a cop out. It should all work okay
without you having to do that.


Jim.
 
Where is the routing table? And where is the subnet defined?
Click to expand...

Boot to a dos prompt and type

route print > rprint.txt

This will put a printout of your routing table to a file (rprint.txt)
which you can then paste into your news client and here.

Do a before and after.


Jim.
 
OK, but if I leave the LAN connected and then establish a dial-up
connection, and then start my browser, which connection does the browser
choose?

Regards, hawk
 
Well, I used the dial-up to establish a connection to my dial-up ISP while
leaving the LAN connected. Then I started my browser, it used the dial-up
connection. Then I closed the browser and disconnected the dial-up
connection. When I re-started the browser, everything worked just fine. I
don't know what happened the first time.

Regards, hawk
 
OK, but if I leave the LAN connected and then establish a dial-up
connection, and then start my browser, which connection does the browser
choose?
Click to expand...

There is a setting in the DUN connection properties which says "use
default gateway on remote network" (or words to that effect). This box
is checked by default so unless you uncheck it (which will spoil your
dialup internet connection so don't do that) it means that when you
establish a DUN connection the default gateway is changed from
whatever you have it set as normally to whatever has been negotiated
by your ppp dialup.

Consequently, all packets not addressed to machines on your local
subnet will head off via the dialup gateway which is what you want.

If all is working okay, it will automatically change back again when
you hang up. The local subnet connections should be unaffected whether
the dialup is being used or not.

Glad you got it working okay.


Jim.
 
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