I am trying to connect a Mikrotik router to my home network using special requirements...
Basically I want it as a transparent gateway/filter on the existing network (*without* NAT).

I first tried in bridge mode: http://forum.mikrotik.com/viewtopic.php?f=2&t=94527
Posted a feature request here: http://forum.mikrotik.com/viewtopic.php?f=1&t=94821

Now I'm trying to use it like a regular gateway:
- modem/router/gateway (avm fritzbox) IP 192.168.178.1; DHCP server turned off
- Mikrotik router IP 192.168.178.3, DHCP server advertising itself as default gateway!
In this way, all local traffic goes through switch/bridge very well.
Outgoing traffic comes to MT router where I am doing some policy base routing. Special traffic goes to VPN, the rest (normal) goes back to the original gateway (192.168.178.1).

BUT the fritzbox router has some functionality to filter the Internet traffic (parental control, etc). Therefore it sees the traffic coming from MT router for different hosts as "cheating" and blocks the Internet access.

Is it possible to tell the MT router to set the original source MAC address when forwarding data to the gateway? As all hosts are on the same IP/LAN, the traffic can pass back from the gateway directly to the host, there is no need to involve the MT router.

Regards,
Gabriel

Is it possible to tell the MT router to set the original source MAC address when forwarding data to the gateway? As all hosts are on the same IP/LAN, the traffic can pass back from the gateway directly to the host, there is no need to involve the MT router.

Regards,
Gabriel

Why not put the Fritzbox behind the Mikrotik as the kids network and have it do its filtering before the traffic reaches the Mikrotik?

Why not put the Fritzbox behind the Mikrotik as the kids network and have it do its filtering before the traffic reaches the Mikrotik?

I would happily do it, but I would need another VDSL modem; I couldn't find any cheap one... they're usually much more expensive than my MT router...

Regards,
Gabriel