Bridging and Routing (4 Nic's on one machine)

Roger Grosswiler roger at gwch.net
Thu Sep 21 10:04:05 UTC 2006


I would like to install openvpn afterwards and gain access via wlan on the
external if to the internal network and use printers, shares etc. also, i
would like to install dansguardian and clamav on the squid-machine @home
(where i don't think i need really bridging)

I think i gonna need bridging there(?)

Roger

(Sorry Samuel, forgot to send to the list).


> Think in a bridge as a kind of switch. It works at OSI Level 2
(Ethernet) not at upper levels (IP).
>
> The IP you assign to bridge must be the IP you need to access to the IP
subnet you need to access from the bridge interface.
>
> The first question is: Do you really need a bridge?
>
> If you don't need to connect networks at Ethernet level, you don't need it.
>
> Perhaps I don't stand fine your required configuration, but I can't see
that you really need bridges.
>
> Can you explain a bit more your wanted configuration?
>
> Regards
>
> --
> Samuel Díaz García
> ArcosCom Wireless, S.L.L.
>
> CIF: B11828068
> c/ Romero Gago, 19
> Arcos de la Frontera
> 11630 - Cadiz
>
> http://www.arcoscom.com
>
> mailto:samueldg at arcoscom.com
> msn: samueldg at arcoscom.com
>
> Tlfn.: 956 70 13 15
> Fax:   956 70 34 83
>
>
> El Jue, 21 de Septiembre de 2006, 9:03, Roger Grosswiler escribió:
>> Hello,
>>
>> I think about bridging the firewall on the next install. Unfortunately,
the same firewall routes to 2 other subnets:
>>
>> - 1 external
>> - 1 DMZ
>>
>> Both have separate IP-Ranges. In fact, with the internal Network, i have 3
>> Subnets (internal-> eth0, external -> eth1, dmz -> eth2)
>>
>>
>> I would like to now:
>>
>> Can i use this combination:
>>
>> 1 bridge eth0->eth1
>> 1 bridge eth0->eth2
>>
>> and: which ip-adress does the bridge need? is there any ip possible or
which one is to set preferably on the bridge?
>>
>> Thanks for your replies.
>>
>> Roger
>>
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>>
>
>
>
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