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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 DEBIAN

ns_connredirect

Ns_ConnReturn(3aolserver)				   AOLserver Library Procedures 				 Ns_ConnReturn(3aolserver)

__________________________________________________________________________________________________________________________________________________

NAME

       Ns_ConnRedirect - Internally redirect a request to a new local url

SYNOPSIS

       #include "ns.h"

       int
       Ns_ConnRedirect(conn, url)

ARGUMENTS

       Ns_Conn	 conn	(in)	  Pointer to open connection.

       char	 *url	(in)	  Pointer to string of local url.
_________________________________________________________________

DESCRIPTION

       This  routine  can  be  used  to  internally redirect to a new, local url on the server.  The url paramter specifies a path relative to the
       server, i.e., without the leading "http://host:port" portion.  The server will reset  the  Ns_Request  structure  in  the  open	connection
       pointed	to  by conn and restart connection handling, including authorization checks.  The result is a standard AOLserver request procedure
       result code, either from an underlying call to Ns_ConnRunRequest or the result of one  of  the  authorization  response	routines  such	as
       Ns_ConnReturnForbidden.	Filter callbacks, if any, are not run again with the updated connection.

       The  Ns_ConnRedirect routine is used internally in the server to support the basic file serving code (i.e., "fastpath") to redirect to spe-
       cific files when a directory is opened and by the Ns_RegisterRedirect routine to map  standard  reponse	routines  to  user-provided  local
       url's.

EXAMPLE

       The  following  example	demonstrates redirecting to an ADP help page within a custom C-level request callback whenever a ?help=topic query
       argument is present:

		int
		MyRequest(void *arg, Ns_Conn *conn)
		{
		   Ns_Set *query = Ns_ConnGetQuery(conn);

		   /* Redirect to help.adp for /myrequest?help=topic calls. */
		   if (Ns_SetGet(query, "help")) != NULL) {
		     return Ns_ConnReturnRedirect(conn, "/help.adp");
		   }
		   ...	handle non-help requests ...
		}

SEE ALSO

       Ns_RegisterRedirct(3), Ns_ConnRunRequest(3), Ns_AuthorizeRequest(3)

KEYWORDS

       connection, redirect

AOLserver								4.0						 Ns_ConnReturn(3aolserver)