Re: Connect to Multiple Networks (Simultaneously) From Same Comput

To rephrase a biblical quote:
"No PC can serve two DHCP servers, for either he will obey the one and
despise the other..."

One of the things a DHCP server gives you (as well as an IP address) is a
DNS server IP address.
This is where your PC asks 'what is the numeric IP address of
www.arsenal.com' so that it can connect you to get updates on the best
football team in North London.

When you are not connected to the secure dial-up, you are getting the
address of a DNS server that works (it knows all about your LAN, and forwards
names it doesn't recognise to the authoritative server for .com, .org, .fr,
or whatever.

When you connect to the secure network, I bet their DHCP server (or their
login script) gives you a DNS server which is not connected to the internet,
so that desktops in the secure network can't browse the web - understandable
as it is a big security hole.

So I guess the operators of that network don't want you to be browsing
through your wireless card while you are connected to them. Ask them for
confirmation of this - or just back off if to do so might light the career
dissipation LED on your desktop!
--
Regards,
Newell White


"Charles Law" wrote:

The 0.0.0.0 entry, connected is

0.0.0.0 0.0.0.0 192.168.0.1 192.169.0.3
25

I tried again and I can now sort of get out onto the broadband internet
whilst connected on dial-up. I say sort of, because I can connect to our SQL
Server instance if I use the explicit IP address, but if I use the alias it
doesn't work. I think that is what was throwing me.

Any idea why the IP would work but not the alias? I have checked the alias
and it is correct. It also works when not on dial-up.

Charles


"Newell White" <NewellWhite@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:F23F7844-4583-4A7B-BB7C-99A3F152D767@xxxxxxxxxxxxxxxx
It's the 0.0.0.0 route that gets you out to the internet.

From reading your comms with Bill Grant, sounds like you are not using the
remote gateway of your dial-up connection, but 192.168.0.1 which I guess
is
your broadband router.

So what are the two 0.0.0.0 entries in the case of (a) dial-up connected
(b) dial-up not connected.

--
Regards,
Newell White


"Charles Law" wrote:

Ok, my list ends like this:

255.255.255.255 255.255.255.255 <secure network gateway> <secure
network gateway> 1
255.255.255.255 255.255.255.255 192.168.0.3
2 1
255.255.255.255 255.255.255.255 192.168.0.3
192.168.0.3 1
Default Gateway: 192.168.0.1

Is that normal? Could that be the problem?

Charles


"Newell White" <NewellWhite@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:D2C1B031-0914-4B1C-9862-E4DE5DDEA54F@xxxxxxxxxxxxxxxx
Here is the result of 'route print > C:\rprintlog on my XP workstation:

===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface
Metric
0.0.0.0 0.0.0.0 192.168.1.200 192.168.1.220 10
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.1.0 255.255.255.0 192.168.1.220 192.168.1.220 10
192.168.1.220 255.255.255.255 127.0.0.1 127.0.0.1 10
192.168.1.255 255.255.255.255 192.168.1.220 192.168.1.220 10
224.0.0.0 240.0.0.0 192.168.1.220 192.168.1.220 10
255.255.255.255 255.255.255.255 192.168.1.220 192.168.1.220 1
Default Gateway: 192.168.1.200
===========================================================================
Persistent Routes:
None

This maps the entire IP address space to an interface (192.168.1.220 is
my
ethernet card, 127.0.0.1 is a loopback to to the TCP/IP input of my PC)
and a
gateway (192.168.1.200 is a DSL router connecting to our ISP).
So all loopbacks (127.x.y.z) and traffic for 192.168.1.220 originating
in
my
PC never gets out onto our Ethernet LAN.
Traffic for our LAN (192.168.1.x) is broadcast from my ethernet card,
as
are
a few other special cases.
Any other address p.q.r.s is sent to the DSL router.

This table is set up by the DHCP server on our LAN when I log on - it
assigns my IP, my net mask (defines size of LAN), and my gateway.

192.168.x.y are un-routable addresses - traffic for them will not pass
either way through a router, so they are secure - our LAN speaks only
to
our
LAN, yours speaks only to yours.

This should be enough info to allow you to diagnose your rote print
outputs,
or ask intelligent questions if you don't want to divulge the IP of the
access point to your secure network.
--
Regards,
Newell White


"Charles Law" wrote:


Hi Newell

The laptop is a DHCP client on the local network, and to the secure
network
when connected.

What do you mean by the route print? I can't post anything that
explicitly
relates to the secure network, for obvious reasons.

It sounds like your off-site users do exactly what I want to do here.
I
wonder if I use the laptop just as a gateway to the secure network,
and
allow ICS that would do the trick? The problem would be that Windows
always
wants to set the IP on an ICS machine to 192.168.0.1, and that is the
IP
of
my router.

Charles


"Newell White" <NewellWhite@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
message
news:321245F6-3F7C-4FA3-93C9-BC77FADCE539@xxxxxxxxxxxxxxxx
More info needed.
I assume you are DHCP client of whichever network you successfully
connected
to last. Correct me if you have a different set-up.

Post results of 'route print' when you are
(a) connected to secure network via dial-up
(b) to your broadband network

Our offsite users can access our network (via VPN) and their local
printers,
and see Internet via their ISP, not ours, by using a set-up called
'split
tunneling'.
I suspect this may only work for you if you put your dial-up modem
on
local
Ethernet so that you access both networks via same interface.
--
Regards,
Newell White


"Charles Law" wrote:

Hi Meinolf

Thanks for the reply. I haven't tried RDP except over the dial-up
connection. What I have tried is pinging my remote network IP when
dial-up
is connected and I get an instant reply from the secure network
(over
dial-up) saying that the host is unreachable.

It seems that all traffic is sent down the dial-up path, whether it
can
be
reached that way or not.

What I think it needs is something to route only private network
traffic
down the dial-up path and everything else through my local gateway,
but I
can't see where I might set that.

Charles


"Meinolf Weber" <meiweb(nospam)@gmx.de> wrote in message
news:ff16fb669754e8ca735372d3218a@xxxxxxxxxxxxxxxxxxxxxxx
Hello Charles,

Did you try with Remote Desktop over the broadband connection?

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties,
and
confers no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!!
http://www.blakjak.demon.co.uk/mul_crss.htm

I'm not sure if this the right place, so please redirect me if
there
is a better place (I looked but none was obvious).

I have a laptop that uses a dial-up connection to a secure
network
(the only route in). I also want to be able to connect to
another
remote network from the laptop, at the same time, via broadband.

So far, all attempts have failed. If I hang-up the dial-up
connection,
I can see the internet, but once the dial-up is connected all I
can
see from the laptop is my local network (and the remote secure
network, of course).

The laptop has a wireless connection to my local network, and
when
I
look at the properties there is a place to enter "Alternate
Configuration", but I can't get that to make any difference.

Please can anyone suggest how I might do this?

TIA

Charles















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