Re: [coLinux-users] Networking insights - bridging with multiple ips, no bridging with subnets, etc

[Tomas F. <to...@eu...>]

Hi Chirayu,

just to give you a viable alternative to dizzi's approach, here is
what I did, using the bundled tap driver and XP's native network
bridge facility. I did not install winpcap, by the way.

After installation of CoLinux, in the property display of "my
network places", select the icon of your network card and the icon
of the TAP device, right click and select "create bridge". For a
simpler configuration you can then rename the TAP device to "tap" or
similar.

In the XML config file, set the network node to the following:
<network index="0" type="tap" name="tap" mac="F0:12:34:56:78:9F"/>
The mac address is from my own imagination and must be unique in
your local network. I'm not sure that is absolutely needed, though.

Part from the the above, you also need to edit
/etc/network/interfaces in the root file system.
Well, that did the trick for me anyway. Hope it helps.

Tomas

dizzi skrev:
> Hi,
> im using winpcap. (I have two real IP's and i need exact MAC addresses
> for both because our network policy)
> 
> So my guide:
> 
> 1. remove TAP adapter, you dont need it.
> 2. set your real network card as usuall
> 3. install winpcap (there is not any visible change in system)
> 4. run colinux with parameters in config.xml like:
> <network index="0" type="bridged" name="Local Area Connection"
> mac="xx:xx:xx:xx:xx:xx"/> (mac is optional, i think)
> 5. set correct values in /etc/network/interfaces and /etc/resolv.conf
> 6. now yours box acts like 2 computers
> 
> I had tried to make same with TAP, but i wasnt succesfull. I dont know
> way how to change bridge's MAC in windows (even registry change doesnt
> work!)
> 
> Btw try this too:
> http://wiki.colinux.org/cgi-bin/coLinuxNetworking
> 
> cu,
> dizzi
> 
> 
> Chirayu Krishnappa wrote:
> 
>> Hi,
>>
>> I have coLinux running on Win XP with the TAP adapter. I have an Ethernet
>> card plugged into a router which connects to the internet.
>>
>> I searched the archives and the net but I still only have a half baked
>> solution. I am hoping someone has some insight to share.
>>
>> I would like WinXP to keep its current IP address (192.168.1.100), DNS
>> server etc as provided by the router (it recognizes the mac and gives
>> it a
>> static ip and forwards certain ports.)
>>
>> I would like coLinux to have a different IP address on the same subnet
>> (say
>> 192.168.1.101).
>>
>> Try 1 - bridging the Ethernet and the TAP adapters.
>> If I do this - it seems that I cannot assign an IP address to the
>> original
>> Ethernet adapter - only to the Bridge. I assumed that the bridge of the 2
>> ethernet adapters would function like a software hub - so that each of
>> the
>> adapters in the bridge could get their own ip address. I can assign a
>> fixed
>> different ip address on coLinux - but because the MAC address of the
>> bridge
>> is different - I have to reconfigure the router. I would prefer not to
>> use
>> windows bridging.
>>
>> Try 2 - a separate subnet I used the instructions from
>> http://wiki.colinux.org/cgi-bin/YetAnotherNetworkConfiguration
>> I can ping to external IP's from coLinux (eg. google) but name resolution
>> does not work. Perhaps I need to install bind?
>> Even so - I not have a 192.169.2.xx network - which is a different
>> subnet.
>>
>> Has someone gotten winpcap bridging to work? It seems that this may be a
>> nicer solution.
>>
>> Does anyone understand what is happening with the TAP adapter - I seem
>> to be
>> able to set a static IP (192.168.2.1) in the adapter properties but
>> cannot
>> use that it in coLinux for eth0. I need to use a different one
>> (192.168.2.2)
>> and make 192.168.2.1 the gateway. It seems like TAP is behaving as
>> more than
>> just an adapter which coLinux is listening to.
>>
>> Any insights are appreciated.
>>
>> Thanks,
>> Chirayu.
>>
>>
>>
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> 
> 
> 
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