Joakim Tjernlund wrote: > Bart De Schuymer <bdschuym@xxxxxxxxxx> wrote on 2010/03/29 09:46:47: >> Joakim Tjernlund wrote: >>> Joakim Tjernlund/Transmode wrote on 2010/03/28 21:04:11: >>>> Joakim Tjernlund/Transmode wrote on 2010/03/28 20:27:10: >>>>> Bart De Schuymer <bdschuym@xxxxxxxxxx> wrote on 2010/03/28 14:48:52: >>>>>> Stephen Hemminger schreef: >>>>>>> If you read the network receive code path in the kernel, you >>>>>>> will see that there is a special hook used. Basically, >>>>>>> >>>>>>> if received_interface_is_part_of_bridge(incoming_interface) >>>>>>> then process_bridged_packet(packet) >>>>>>> >>>>>>> Then bridge looks at packet and decides whether it is local or forwarded. >>>>>>> The problem is with your application if it wants to use eth0 directly. >>>>>>> >>>>>>> >>>>>> The ebtables brouting chain was designed to enable you to do this. >>>>> Can you give me an example? >>>> Found this on the net: >>>> ebtables -t broute -A BROUTING -p 0800 -i eth1 --ip-dst 192.168.1.16 -j DROP >>>> ebtables -t broute -A BROUTING -p 0806 -i eth1 -d 00:06:9C:00:B2:FB -j DROP >>>> ebtables -t broute -A BROUTING -p 0806 -i eth1 --arp-ip-dst 192.168.1.16 -j DROP >>>> >>>> 192.168.1.16 and 00:06:9C:00:B2:FB are the IP and MAC addresses of eth1. >>>> >>>> Then add eth1 to the bridge and it appears to be working as I want. >>>> Are there any "gotcha's" with this method? >>> What about other protocols such as pppoe and OSPF, will these work over eth1 too? >>> Are outgoing pkgs from the host bridged or just sent out over eth1? >>> >>> Jocke >> The ebtables rules in the brouting chain see all traffic arriving on the >> bridge port (currently unless the port is in learning state). So as long >> as your setup is correct it should work with pppoe and OSPF too. > > Ah good. So the outgoing traffic will go out over the bridge port too and > thereby be bridged? If you want the ingoing traffic to go through eth1 I assume you want the accompanying outgoing traffic to go through eth1 too. Your routing table should be routing 192.168.1.0/24 to eth1. If this is not how you want it to work, please explain. > Still I wonder about OSPF. This protocol sends pks to multicast IP address > 224.0.0.5/6 so how are these picked up by the broute rule? > > How is pppoe picked up by the broute rule? The ethertype is different from ipv4 > so I don't understand how it manages to do that. > You'll need additional ebtables rules. -- Bart De Schuymer www.artinalgorithms.be _______________________________________________ Bridge mailing list Bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/bridge
