two interfaces, same range

mateus mateus at spectra.homelinux.org
Wed Jul 4 23:15:28 UTC 2007


bridge is a good idea? where can i find more information about how to 
configure this?

thanks

Simon Hobson escreveu:
> mateus wrote:
>   
>> first of all thanks for the answers..
>>
>> i'll try to explain better
>> i have a lan with 30 computers, 2 switches and 1 server with 2
>> interfaces, each interface is conected in differents switch.
>> eth0 has the ip 192.168.0.1 and eth1 192.168.1.1
>> im using this configuration
>>
>> subnet 192.168.0.0 netmask 255.255.255.0 {
>> range 192.168.0.10 192.168.0.100;
>> option routers 192.168.0.1;
>> <other options>
>> }
>>
>> subnet 192.168.1.0 netmask 255.255.255.0 {
>> range 192.168.1.100 192.168.1.200;
>> option routers 192.168.1.1;
>> <other options>
>> }
>>
>> is working well, but i would like to use the same range (of course i'll
>> change de ip in each interface)
>> something like this:
>>
>> #eth0 with ip 192.168.0.1
>> range 192.168.0.10 192.168.0.100;
>> option routers 192.168.0.1;
>> <other options>
>> }
>>
>> #eth1 with ip 192.168.0.2
>> subnet 192.168.0.0 netmask 255.255.255.0 {
>> range 192.168.0.101 192.168.0.200;
>> option routers 192.168.0.2;
>> <other options>
>> }
>>     
>
> Right, so you want the SAME subnet on two interfaces, with each 
> interface connected to a separate switch (and presumably no other 
> link between the switches).
>
> This would not be a valid IP network setup unless you do one of two things :
>
> 1) Configure the server box as a bridge. In that case the bridge 
> interface has a single IP address but neither of the ethernet 
> interfaces would have their own address.
>
> 2) Link the two external switches together to make the two networks 
> into a single network.
>
>
> However, as per earlier posts from myself and Glenn, in neither case 
> can you specify clients by interface - and I'm not sure how the dhcp 
> server will work in a bridge device (to do with the way it handles 
> interfaces at a low level in the OS).
>
>
>   



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