MAC SNAT and DNAT for two bridges on the same device
"Hasan Rashid" <[email protected]> Thu, 31 Jan 2008 12:25:18 -0800
| Newsgroups | gmane.linux.network.bridge.ebtables.user |
|---|---|
| Message-ID | <[email protected]> |
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Hi,
I have two wireless repeaters 1 & 2 each with two radios. I am configuring
two bridges A&B on each device with one radio in each bridge group. Now, I
want to use one radio on each device for outgoing traffic only and the other
for incoming traffic. This will allow full duplex link between the two
devices by having one-way traffic on each bridge. I am using bridge A on
device 1 and bridge B on device 2 as outgoing bridges.
Now here's what I am trying to figure out. How can I make packets coming on
bridge B on device 1 look like they are actually received on bridge A? How
can I use ebtables to change the MAC destination and source of a packet such
that it can be transmitted or appear to have been received on another bridge
on the same device? Any ideas?
TIA!
Regards,
Hasan Rashid
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<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Hi,<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I have two wireless repeaters 1 & 2 each with two =
radios.
I am configuring two bridges A&B on each device with one radio in =
each
bridge group. Now, I want to use one radio on each device for outgoing =
traffic
only and the other for incoming traffic. This will allow full duplex =
link
between the two devices by having one-way traffic on each bridge. I am =
using
bridge A on device 1 and bridge B on device 2 as outgoing bridges. =
<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Now here’s what I am trying to figure out. How =
can I
make packets coming on bridge B on device 1 look like they are actually
received on bridge A? How can I use ebtables to change the MAC =
destination and
source of a packet such that it can be transmitted or appear to have =
been received
on another bridge on the same device? Any ideas? =
<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>TIA!<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Regards,</span></font><o:p></o:p></p=
>
<p class=3DMsoNormal><b><font size=3D2 color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold'>=
Hasan
Rashid<o:p></o:p></span></font></b></p>
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