Bridge two NICs

  • Thread starter Thread starter Ron H
  • Start date Start date
R

Ron H

I have a home network consisting of a DSL modem to a Linksys wireless
router. There is one pc wired to the router along with a networked printer.
There is one W2K PC on the wireless side. I would like to add a second NIC
to the wireless PC so I can connect some non-wireless network boxes thru it
to the network and the internet. In XP it is a piece of cake to bridge two
NICs but it doesn't appear to be so easy in W2K. Has anyone bridged two
NICs in W2K? I see that there is an option to allow access thru this machine
but it forces the IP address to 192.168.0.1 and drops the wiereless
connection.... what's that all about?

Cheers
Ron H.

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Thanks Doug! So if I enable IP forwarding and set it up like this:

Linksys LAN side 192.168.100.101
Wireless PC 192.168.100.104
Second NIC in wireless PC as static 192.168.100.120
and single board PC on the second NIC via cable as 192.168.100.121, all in
the same subnet.

Will I need to make all of the addresses static? I currently use MAC
filtering, do I need to add both the second NIC and the laptop NIC MAC
addresses in the table?

Regards
Ron H. < r n harsh at sbc global dot net without the spaces of course>

Doug Sherman said:
Win2k does not support bridging and ICS is probably not a good choice
because it uses NAT. A better choice is straight routing:

http://support.microsoft.com/kb/230082/en-us

You will probably need to configure a static route on the Linksys router.

Doug Sherman
MCSE, MCSA, MCP+I, MVP
Click to expand...
 
Why go through all that?

The router probably has 4 LAN ports on it. Plug everything into them and you
are done. Disable the wireless nic to the one PC until you actually need it
in other situations.
If the router does not have the 4 ports on it, then buy a simple cheap Hub
or Switch, connect it to the router,...connect the machines to it,..and
you're done.

--
Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

The views expressed are my own (as annoying as they are), and not those of
my employer or anyone else associated with me.
-----------------------------------------------------

Ron H. said:
Thanks Doug! So if I enable IP forwarding and set it up like this:

Linksys LAN side 192.168.100.101
Wireless PC 192.168.100.104
Second NIC in wireless PC as static 192.168.100.120
and single board PC on the second NIC via cable as 192.168.100.121, all in
the same subnet.

Will I need to make all of the addresses static? I currently use MAC
filtering, do I need to add both the second NIC and the laptop NIC MAC
addresses in the table?

Regards
Ron H. < r n harsh at sbc global dot net without the spaces of course>
Click to expand...
 
The second NIC in the wireless PC must be a different subnet - eg.
192.168.101.120. Both this and the wireless NIC should have static IPs.
Any PCs connected through the wireless PC's second NIC would have a default
gateway of 192.168.101.120. The wireless PC should have a default gateway
of 192.168.100.101. On the Linksys router you would need to configure a
static route which sends packets destined for the 192.168.101.x network to
192.168.100.104.

Doug Sherman
MCSE, MCSA, MCP+I, MVP

Ron H. said:
Thanks Doug! So if I enable IP forwarding and set it up like this:

Linksys LAN side 192.168.100.101
Wireless PC 192.168.100.104
Second NIC in wireless PC as static 192.168.100.120
and single board PC on the second NIC via cable as 192.168.100.121, all in
the same subnet.

Will I need to make all of the addresses static? I currently use MAC
filtering, do I need to add both the second NIC and the laptop NIC MAC
addresses in the table?

Regards
Ron H. < r n harsh at sbc global dot net without the spaces of course>
Click to expand...
 
Well Phillip, I need the wireless section because there is no way to run a
physical wire between the Linksys and the shop where the wireless PC is
located. I could buy a second wireless router and make it a bridge but
that's another $150...


Thanks for your thoughts!
Ron H.





Phillip Windell said:
Why go through all that?

The router probably has 4 LAN ports on it. Plug everything into them and you
are done. Disable the wireless nic to the one PC until you actually need it
in other situations.
If the router does not have the 4 ports on it, then buy a simple cheap Hub
or Switch, connect it to the router,...connect the machines to it,..and
you're done.

--
Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

The views expressed are my own (as annoying as they are), and not those of
my employer or anyone else associated with me.
Click to expand...
 
Ron H said:
Well Phillip, I need the wireless section because there is no way to run a
physical wire between the Linksys and the shop where the wireless PC is
located. I could buy a second wireless router and make it a bridge but
that's another $150...
Click to expand...

No, no,..it would just be a simple Wireless Access Point (WAP). They are
cheap, and that is exactly what they were designed for. You just plug the
WAP into the router (or hub or switch) just as if it was a computer. Then
the Laptop (or any other wireless device you have) connects to the WAP and
the WAP bridges it into the wired LAN.

But, really,..the $150 would be worth it to just repace the wired router
with a wireless router that does both wired & wireless. It would not be a
"second" router,...it would be the only one,..it would just replace the
existing one.

--
Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

The views expressed are my own (as annoying as they are), and not those of
my employer or anyone else associated with me.
-----------------------------------------------------
 
Phil, I think we have a failure to communicate! One more time:

I HAVE:
1 ea DSL modem
1 ea Linksys WIRELESS router with 4 WIRED ports.
1 ea PC WIRED to the above router
1 ea Printer WIRED to the above router
1 ea PC WIRELESS to the above router ( this PC CAN NOT be wired to the
router! No way to run wires)

I WANT TO ADD:
Several Single Board CPU's NOT WIRELESS CAPABLE located near the WIRELESS
PC using it as a bridge or gateway. It is also my understanding that some of
the wireless routers out there can be setup as a bridge sort of working like
the first router in reverse. If the WIRELESS PC were running XP Pro, it
would be a snap to bridge two NICS and have the SBC's wired to the second
NIC through a simple 4 port switch but alas, it is running W2K hence my
question!


Ron H.
 
The bridging on the Linksys box has nothing to do with this and exists for
an entirely different reason.

Ok, if the Wireless PC also has a wired Nic, then you would bridge those two
Nics together and connect the other thing (SBCs?) to the wired nic on the PC
with a Crossover Cable. This is one of those things that is supposed to
"just work". I don't really know of any configuration of the Bridging other
than turning it on or off.

I personally wish that MS would never have developed such a feature,...all
is does is encourage "bad" (no, atrocious) networking habits and techniques.
The proper way to do this would be to either run a cable from the Linksys
NAT box through the building to the Devices in question,...or,...just add
wireless nics to the devices.

--
Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

The views expressed are my own (as annoying as they are), and not those of
my employer or anyone else associated with me.
 
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