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

[Samuel Díaz García]

Perhaps I haven't stand fine. I stand you have an external iface (that 
is a wifi interface) and you want to connect to your computer using an 
VPN (OpenVPN) and then access to your internal network. Am I right?

If I right, you don't need bridge configuration.

When you configure OpenVPN server, this will add a new iface to your 
server, then, you only need to allow routing from your VPN network to 
your internal network (allow routing and allowing with iptables the 
traffic).

The problem that you will encounter is the netbios broadcast frames that 
don't allow you explore de routed networks (internal network), but using 
direct acces via IP you will access without problems to your samba 
shared (windows shares).

Regards

Roger Grosswiler escribió:
> 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.
> 
> I think i gonna need bridging there(?)
> 
> Roger
> 
>> 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
>>>
>>> --
>>> fedora-list mailing list
>>> fedora-list at redhat.com
>>> To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
>>>
>>
>>
>>
> 
> 
> 

-- 
    Samuel Díaz García
     Director Gerente
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

Móvil: 651 93 72 48
Tlfn.: 956 70 13 15
Fax:   956 70 34 83