wired and wireless connection

I just got a notebook and setup a secure wireless connection. Is it ok
to have both connections running at same time?

mooky <(E-Mail Removed)> hath wroth:

>I just got a notebook and setup a secure wireless connection. Is it ok
>to have both connections running at same time?

Yes. Looks like you're using Windoze Media Center Edition. TCP/IP
has a priority scheme called "Metrics". Windoze gives priority to the
higher speed connections. That means that Windoze will send all the
packets via ethernet and sorta ignore wireless. However, as soon as
you unplug the ethernet cable, it will automagically revert to
wireless.

<http://support.microsoft.com/default.aspx?scid=kb;en-us;299540>
<http://www.microsoft.com/technet/community/columns/cableguy/cg0405.mspx>

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

"Jeff Liebermann" <(E-Mail Removed)> wrote in message
both connections running at same time?
>
> Yes. Looks like you're using Windoze Media Center Edition. TCP/IP
> has a priority scheme called "Metrics". Windoze gives priority to the
> higher speed connections. That means that Windoze will send all the
> packets via ethernet and sorta ignore wireless. However, as soon as
> you unplug the ethernet cable, it will automagically revert to
> wireless.
>
> <http://support.microsoft.com/default.aspx?scid=kb;en-us;299540>
> <http://www.microsoft.com/technet/community/columns/cableguy/cg0405.mspx>

This brings up a question for me.
I had a dell latitude laptop at work and I used to connect to our wireless
network and to a wired network (seperate from the lan with the wireless ap)
so I could have internet (via wireless) but still communicate via the wired
to the phone system or whatever I was working on. IP on wired always
manually assigned with no gateway.
One day, it stopped working. I figured I had changed something to mess it up
I played with the metrics but never got it working.
I received a new HP laptop for work a few months ago and was hoping that it
would work the same way on it however it does not.

Before I always figured that it work because there was no gate way ip
address assigned to the interface so internet traffic went where there was
one but this does not appear to be the case.

anyone?

Adair

Yes, notebook and desktop. Yes.

"mooky" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) ups.com...
> I just got a notebook and setup a secure wireless connection. Is it ok
> to have both connections running at same time?
>

"Adair Winter" <(E-Mail Removed)> hath wroth:

>"Jeff Liebermann" <(E-Mail Removed)> wrote in message
>both connections running at same time?
>>
>> Yes. Looks like you're using Windoze Media Center Edition. TCP/IP
>> has a priority scheme called "Metrics". Windoze gives priority to the
>> higher speed connections. That means that Windoze will send all the
>> packets via ethernet and sorta ignore wireless. However, as soon as
>> you unplug the ethernet cable, it will automagically revert to
>> wireless.
>>
>> <http://support.microsoft.com/default.aspx?scid=kb;en-us;299540>
>> <http://www.microsoft.com/technet/community/columns/cableguy/cg0405.mspx>

>This brings up a question for me.
>I had a dell latitude laptop at work and I used to connect to our wireless
>network and to a wired network (seperate from the lan with the wireless ap)
>so I could have internet (via wireless) but still communicate via the wired
>to the phone system or whatever I was working on. IP on wired always
>manually assigned with no gateway.

That's very different. If the wired connection did NOT have a gateway
IP, or that the gateway IP was the local IP address of the ethernet
interface, all the packets would go via the wireless, EXCEPT those
that are within the netmask of the ethernet adapter. The automatic
"metric" packet priority thing only works if both the wired and the
wireless go to the same router and have the same netmask. Otherwise,
things get really complicated.

>One day, it stopped working. I figured I had changed something to mess it up
>I played with the metrics but never got it working.

I always (and I do mean always) keep a saved copy of the routing
table:
route print > filename
It's a bit rough decoding the output, but not impossible. See:
http://www.microsoft.com/technet/com...uy/cg1201.mspx
When something breaks, I compare results. It's amazing how minor
updates and installs seem to screw up my settings. I have a fairly
complex mess in the office. I once installed some obscure network
discovery and analysis tool that "repaired" all my settings. Gee
thanks.

>I received a new HP laptop for work a few months ago and was hoping that it
>would work the same way on it however it does not.

It can, but without numbers and topology, I'm not going to offer a
configuration.

>Before I always figured that it work because there was no gate way ip
>address assigned to the interface so internet traffic went where there was
>one but this does not appear to be the case.

The gateway is for where packets go that do *NOT* have a destination
IP address that is within the netmask of either interface. For
example:
wireless 192.168.1.xxx
ethernet 192.168.0.xxx
Everything with a destination IP address within 192.168.1.xxx will go
via wireless. Everything with a destination IP address within
192.168.0.xxx will go via wireless. Everything *ELSE* that is NOT
within either of these two Class C IP blocks, will go via the gateway.

>anyone?
>
>Adair

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

"Jeff Liebermann" <(E-Mail Removed)> wrote in message

>
> I always (and I do mean always) keep a saved copy of the routing
> table:
> route print > filename
> It's a bit rough decoding the output, but not impossible. See:
> http://www.microsoft.com/technet/com...uy/cg1201.mspx
> When something breaks, I compare results. It's amazing how minor
> updates and installs seem to screw up my settings. I have a fairly
> complex mess in the office. I once installed some obscure network
> discovery and analysis tool that "repaired" all my settings. Gee
> thanks.

Good info, I will have to look into doing the same. Could come in really
handy.

>
> It can, but without numbers and topology, I'm not going to offer a
> configuration.

There isn't much topology to it really. Take one laptop connected wirelessly
to office lan which has servers, work stations, ip phones and internet
connectivity. This network is 192.168.1.0/24 and the wireless interface is
fully configured via the DHCP server.
In the office I will sit down to initually setup or test a VoIP phone system
in which I use a completly seperate switch from the office network for
connectivity. Normally outta the box i'm on 10.10.10.0/24 with the wired
interface, which i normally do not specify a gateway (because there is
none).

If I request something from either network by ip address i have no problems,
i'm not sure about by name. Alot of what I do is broswer and remote desktop
baised so if I call an address directly it responds but if i open a browser
window and type in www.google.com (or any other address for that matter) or
try to check my POP3 email I get an error.


> The gateway is for where packets go that do *NOT* have a destination
> IP address that is within the netmask of either interface. For
> example:
> wireless 192.168.1.xxx
> ethernet 192.168.0.xxx
> Everything with a destination IP address within 192.168.1.xxx will go
> via wireless. Everything with a destination IP address within
> 192.168.0.xxx will go via wireless. Everything *ELSE* that is NOT
> within either of these two Class C IP blocks, will go via the gateway.

Understood.

Adair