Jochen Hebbrecht wrote: > Nicolas de Pesloüan schreef: >> >> Can you also explain why you are trying to use bridge ? > Nicolas, > > I'm not sure that bonding is the thing I need. I'll explain what I want > to do. > > Please check this image: http://www.jochus.be/brol/networking.png > * Purple lines: wired (UTP) > * Blue (dashed) lines: wireless > > So in this building, there are 2 locations. Location A and B. There's no > possibility to link them using a wired cable, and I don't like the net > adapters who transmits packets using the 50Hz channel. > > In location A, there's a desktop and a notebook a. In location B, > there's a notebook, a server which maintains e-mails, backup, > Subversion, Archiva, ... and there's also printer (a network printer). Ok, now we understand what you are trying to do. In particular, I assume the DHCP server is on the subnet of location B (or behind a router connected on this subnet), so the expected DHCP offer will come from the wire interface (eth0) and definitely not from the wireless interface (eth1). > So, notebook B needs to print to the network printer, which is very easy > by using the switch that's on location B. So that works. But now I want > to print from location A on the desktop and notebook A. So I needed to > connect them in the same subnet of the networkprinter. Let's try a step-by-step bridge configuration : 1/ Try to setup a non-bridge configuration and ensure you successfully get a DHCP answer using eth0. auto eth0 iface eth0 inet dhcp #auto eth1 #iface eth1 inet dhcp #wpa-driver wext #wpa-ssid ##SSID## #wpa-ap-scan 1 #wpa-proto RSN #wpa-pairwise CCMP #wpa-group CCMP #wpa-key-mgmt WPA-PSK #wpa-psk ##PSK KEY## #auto br0 #iface br0 inet dhcp #bridge_ports eth0 eth1 2/ Try to setup a bridge with only eth0 (wire interface) and ensure this work well, using a static IP address. #auto eth0 iface eth0 inet manual #auto eth1 iface eth1 inet manual auto br0 iface br0 inet static bridge_ports eth0 address 192.168.1.111 netmask 255.255.255.0 3/ Try to setup a bridge with only eth0 (wire interface) and ensure this work well, using DHCP. #auto eth0 iface eth0 inet manual #auto eth1 iface eth1 inet manual auto br0 iface br0 inet dhcp bridge_ports eth0 4/ Then add the eth1 (wireless interface). #auto eth0 iface eth0 inet manual auto eth1 iface eth1 inet manual wpa-driver wext wpa-ssid ##SSID## wpa-ap-scan 1 wpa-proto RSN wpa-pairwise CCMP wpa-group CCMP wpa-key-mgmt WPA-PSK wpa-psk ##PSK KEY## # The wpa-bridge option is expected to instruct wpa_supplicant # to listen on br0 instead of eth1. This is a workaround which # should net be necessary after kernel 2.6.28 or 2.6.29, for # as far as I remember. wpa-bridge br0 auto br0 iface br0 inet dhcp bridge_ports eth0 eth1 5/ If the previous fail, can you please test the following configuration: #auto eth0 iface eth0 inet manual #auto eth1 iface eth1 inet manual auto br0 iface br0 inet dhcp bridge_ports eth0 eth1 # the wpa-iface option is expected to instruct wpa_supplicant # to setup the wifi link using eth1 instead of br0. wpa-iface eth1 wpa-driver wext wpa-ssid ##SSID## wpa-ap-scan 1 wpa-proto RSN wpa-pairwise CCMP wpa-group CCMP wpa-key-mgmt WPA-PSK wpa-psk ##PSK KEY## # The wpa-bridge option is expected to instruct wpa_supplicant # to listen on br0 instead of eth1. This is a workaround which # should net be necessary after kernel 2.6.28 or 2.6.29, for # as far as I remember. wpa-bridge br0 6/ If all this fail, please try the above (#5), without the wpa-bridge option. 7/ If all this fail... let's try something really different (and totally out of topic for the bridge list, sorry guys) : Why do you need location A to be in the same subnet as the printer in location B ? The Ubuntu server in location B might be setup as a normal router (with two different IP in two different subnets). Then, the default route on the printer should be set to the LAN IP address of the ubuntu server. If you cannot change de default route for the printer, then add a route on the router of this subnet. This new route should ask the router to forward packet for the subnet of location A through the Ubuntu server. If you cannot change de routing table in this router, then I suggest you try some sort of NAT configuration to arrange for all host in location A to be NATted to an IP address of location B subnet (using proxy ARP). Nicolas. > So, I wanted to created a bridge on the Ubuntu server (who has a > wireless WMP54G network card), and on eth0 an ethernet controller. So by > connecting eth0 to the switch, all notebooks and desktop would be able > to print to the networkprinter > > This situation works fine if the server is running Windows, but not > Ubuntu as the bridge isn't working there :-( _______________________________________________ Bridge mailing list Bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/bridge
