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Date: Fri, 18 Jun 2004 22:09:57 -0400
From: Matt Juszczak <matt@atopia.net>
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To: Renato Marques <renato_fbsd@optrade.com.br>
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Subject: Re: Redirection with a bridge ?
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So in summary, do I basically either have to do routing or a NAT, or 
find another alternative?  There's no way to just bridge the traffic and 
do what i want?

Thanks! :)

-Matt

Renato Marques wrote:

>    Well, in the TCP/IP Model, IP is layer 2 and TCP/UDP layer3.
>
>
>  
>
>>I dont think a bridge could do some like that. A bridge see only IP
>>packets, where are no information about ports, ports are used in TCP and
>>UDP.
>>    Actualy, I think Layer 3 is where the IP protocol besides. NAT is done
>>on layer 4... but i could be wrong...
>>
>>
>>    
>>
>>>Hello all,
>>>
>>>Is there a way to do IP redirection without using layer 3? (IPNAT or
>>>routing)?  I have a bridge setup and want to redirect any port 80
>>>traffic outgoing through the bridge to a specific server .... but it
>>>seems I can only do this with ipfw's forward/fwd or ipnat's rdr commands
>>>... which are all layer 3 oriented and dont work with just a bridge...
>>>
>>>Any ideas?
>>>
>>>Thank you in advance for anyone's help,
>>>
>>>Matt
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