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Packet change and redirect using ebtables

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Operating Systems Linux Red Hat Packet change and redirect using ebtables
# 1  
Old 04-06-2011
Packet change and redirect using ebtables
Hey all
I need your help with ebtables. I want to redirect traffic through local interfaces.
I have am Ubuntu linux machine with several NICs.
(I understand that ebtables is the same for RH)...
eth0 and eth1 are part of a bridge (br0) and they are connected to tap device. On eth0 I get traffic from network 10.10.10.0/24 to the internet.
Through eth1 I get the responses, internet addresses to 10.10.10.0/24.
None of the packets are destined to the linux host (on L3 and L2 as well).
My goal is to separate the traffic to other interfaces.
Every packet that enters eth0 with source ip 10.10.10.0/24 should be routed or redirected to eth3 (Packet should have the same source and destination IP but the frame should now contain a new SRC MAC, eth3's MAC).
The same applies to traffic that is coming in from eth1. I want to route it to eth4.
eth0 and eth1 are unidirectional, that means that I can't change the traffic and I'm only intercepting it.
Can you please help me build this filter using ebtables ?
I had no luck so far.
Thanks !!
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LEARN ABOUT PHP

http_redirect

HTTP_REDIRECT(3)							 1							  HTTP_REDIRECT(3)

http_redirect - Issue HTTP redirect

SYNOPSIS

       bool http_redirect ([string  $url], [array  $params], [bool  $session = false], [int  $status])

DESCRIPTION

	Redirect to the given url.

	The  supplied $url will be expanded with http_build_url(3), the $params array will be treated with http_build_str(3) and the session iden-
       tification will be appended if $session is true. The HTTP response code will be set according to $status. You can use one of  the  redirect
       constants for convenience. Please see RFC 2616 for which redirect response code to use in which situation. By default PHP will decide which
       response status fits best.

	To be RFC compliant, "Redirecting to <a>URL</a>." will be displayed, if the client doesn't redirect immediately, and  the  request  method
       was another one than HEAD.

	A log entry will be written to the redirect log, if the INI settinghttp.log.redirect is set and the redirect attempt was successful.

PARAMETERS

	      o $url
		- the URL to redirect to

	      o $params
		- associative array of query parameters

	      o $session
		- whether to append session information

	      o $status
		- custom response status code

RETURN VALUES

	Returns FALSE or exits on success with the specified redirection status code. See the INI settinghttp.force_exit for what "exits" means.

EXAMPLES

       Example #1

	      A http_redirect(3) example

	      <?php
	      http_redirect("relpath", array("name" => "value"), true, HTTP_REDIRECT_PERM);
	      ?>

	      The above example will output:

	      HTTP/1.1 301 Moved Permanently
	      X-Powered-By: PHP/5.2.2
	      Content-Type: text/html
	      Location: http://www.example.com/curdir/relpath?name=value&PHPSESSID=abc

	      Redirecting to <a href="http://www.example.com/curdir/relpath?name=value&PHPSESSID=abc">http://www.example.com/curdir/relpath?name=value&PHPSESSID=abc</a>.

SEE ALSO

       the HttpResponse class if you are using PHP 5.1.0 and above.

PHP Documentation Group 													  HTTP_REDIRECT(3)