On Thu, 2011-05-19 at 12:52 -0300, Kelbel Junior wrote: > Hi guys! > > I have the following scenario: > > Clients Network <------> Linux router <------> Mikrotik gateway > <------> INTERNET > > Happens what the Mikrotik gateway controls the clients from the mac > address (joining an ip to an MAC address) and when i put the linux > router between they the control don't works. > I saw on the MK(mikrotik) the packets coming in with the MAC address > from the bridge, and this is a problem. > > Exist some way to preserve the source mac through a bridged > connection, to continue seeing the mac address of the clients? Is the device in the middle a router, or is it a bridge? The distinction is quite important. Conceptually, a router does it's thing at layer three of the (in)famous seven-layer model (*). That means it only "preserves" layer three and above. Layer 2 and below is not preserved. A bridge (or (multiport)switch, ignoring marktroid-speak about "L3 switching") does it's thing at layer two. That means it preserves layer two and above. Layer 1 (physical) is not preserved. rick jones * there is also the nine-layer model http://www.isc.org/store/logoware-clothing/isc-9-layer-osi-model-cotton-t-shirt -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
