Jochen Hebbrecht
2009-Apr-27 21:13 UTC
[Bridge] Ubuntu: network bridging between wireless and wired connection fails
Hi everybody,
First of all, let me say that I searched a lot on the internet. I
spent several hours sitting after my notebook, but I can't configure
my network bridge in Ubuntu. I'm really desperate, so I hope somebody
can point me out what I'm doing
Hardware:
-----------------------------------------------------------
$ lspci | grep controller
06:05.0 Network controller: Intel Corporation PRO/Wireless 2200BG
Network Connection (rev 05)
06:07.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169
Gigabit Ethernet (rev 10)
-----------------------------------------------------------
Kernel:
-----------------------------------------------------------
$ uname -a
Linux Bacardi 2.6.24-23-generic #1 SMP Wed Apr 1 21:47:28 UTC 2009
i686 GNU/Linux
-----------------------------------------------------------
I first tested the hardware in windows xp sp3. I selected the 2
interfaces, right clicked on them and picked up: "Create network
bridge". 30 seconds later, I was having a network bridge between my
wired and wireless controller :-). Everything was working smoothly.
Now, I want to do the same thing on my Ubuntu installation (same
notebook, just dual booting to Ubuntu). I thought it would be easy,
but apparantly, it isn't :-( ...
This is my /etc/network/interfaces file:
-----------------------------------------------------------
$ cat /etc/network/interfaces
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet manual
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
-----------------------------------------------------------
So, eth1 is my wireless connection, eth0 is my wired connection.
Without the bridge, I'm able to make a connection on my wireless side,
as on my wired side.
When I bring up the bridge, nothing works ... I'm not able to ping anything.
This is my routing table:
-----------------------------------------------------------
$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 br0
0.0.0.0 0.0.0.0 0.0.0.0 U 1000 0 0 b
-----------------------------------------------------------
And ifconfig -a information
-----------------------------------------------------------
$ ifconfig -a
br0 Link encap:Ethernet HWaddr 00:0a:e4:ae:7e:4c
inet6 addr: fe80::20a:e4ff:feae:7e4c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:11 errors:0 dropped:0 overruns:0 frame:0
TX packets:96 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3927 (3.8 KB) TX bytes:6970 (6.8 KB)
br0:avahi Link encap:Ethernet HWaddr 00:0a:e4:ae:7e:4c
inet addr:169.254.7.81 Bcast:169.254.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
eth0 Link encap:Ethernet HWaddr 00:0a:e4:ae:7e:4c
inet6 addr: fe80::20a:e4ff:feae:7e4c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:107 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:12221 (11.9 KB)
Interrupt:20 Base address:0xc000
eth1 Link encap:Ethernet HWaddr 00:15:00:1f:20:a6
inet6 addr: fe80::215:ff:fe1f:20a6/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:80 errors:0 dropped:0 overruns:0 frame:0
TX packets:111 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:844783 (824.9 KB) TX bytes:128864 (125.8 KB)
Interrupt:21 Base address:0xc000 Memory:c8006000-c8006fff
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:1734 errors:0 dropped:0 overruns:0 frame:0
TX packets:1734 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:88276 (86.2 KB) TX bytes:88276 (86.2 KB)
-----------------------------------------------------------
This is the output of syslog after restarting the networking daemon
-----------------------------------------------------------
Apr 27 23:01:32 Bacardi dhclient: There is already a pid file
/var/run/dhclient.eth1.pid with pid 134519072
Apr 27 23:01:32 Bacardi dhclient: Internet Systems Consortium DHCP Client V3.0.6
Apr 27 23:01:32 Bacardi dhclient: Copyright 2004-2007 Internet Systems
Consortium.
Apr 27 23:01:32 Bacardi dhclient: All rights reserved.
Apr 27 23:01:32 Bacardi dhclient: For info, please visit
http://www.isc.org/sw/dhcp/
Apr 27 23:01:32 Bacardi dhclient:
Apr 27 23:01:32 Bacardi kernel: [ 158.946623]
ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
Apr 27 23:01:33 Bacardi dhclient: Listening on LPF/eth1/00:15:00:1f:20:a6
Apr 27 23:01:33 Bacardi dhclient: Sending on LPF/eth1/00:15:00:1f:20:a6
Apr 27 23:01:33 Bacardi dhclient: Sending on Socket/fallback
Apr 27 23:01:36 Bacardi dhclient: DHCPDISCOVER on eth1 to
255.255.255.255 port 67 interval 8
Apr 27 23:01:36 Bacardi dhclient: DHCPOFFER of 192.168.1.111 from 192.168.1.1
Apr 27 23:01:36 Bacardi dhclient: DHCPREQUEST of 192.168.1.111 on eth1
to 255.255.255.255 port 67
Apr 27 23:01:37 Bacardi dhclient: DHCPACK of 192.168.1.111 from 192.168.1.1
Apr 27 23:01:37 Bacardi dhclient: bound to 192.168.1.111 -- renewal in
42920 seconds.
Apr 27 23:01:42 Bacardi kernel: [ 161.516967] eth1: no IPv6 routers present
Apr 27 23:01:43 Bacardi kernel: [ 74.578698] Bridge firewalling registered
Apr 27 23:01:43 Bacardi kernel: [ 74.578967] br0: Dropping
NETIF_F_UFO since no NETIF_F_HW_CSUM feature.
Apr 27 23:01:43 Bacardi kernel: [ 74.581732] device eth0 entered
promiscuous mode
Apr 27 23:01:43 Bacardi kernel: [ 74.581740]
audit(1240866103.181:3): dev=eth0 prom=256 old_prom=0 auid=4294967295
Apr 27 23:01:43 Bacardi kernel: [ 74.583808] device eth1 entered
promiscuous mode
Apr 27 23:01:43 Bacardi kernel: [ 74.583816]
audit(1240866103.181:4): dev=eth1 prom=256 old_prom=0 auid=4294967295
Apr 27 23:01:43 Bacardi kernel: [ 74.586637] br0: port 2(eth1)
entering learning state
Apr 27 23:01:43 Bacardi kernel: [ 74.586641] br0: port 1(eth0)
entering learning state
Apr 27 23:01:48 Bacardi ntpdate[7485]: can't find host ntp.univ-lyon1.fr
Apr 27 23:01:48 Bacardi ntpdate[7485]: sendto(91.189.94.4): Network is
unreachable
Apr 27 23:01:51 Bacardi last message repeated 3 times
Apr 27 23:01:52 Bacardi ntpdate[7485]: no server suitable for
synchronization found
Apr 27 23:01:53 Bacardi kernel: [ 162.782421] br0: no IPv6 routers present
Apr 27 23:01:58 Bacardi kernel: [ 164.002241] br0: topology change
detected, propagating
Apr 27 23:01:58 Bacardi kernel: [ 164.002252] br0: port 2(eth1)
entering forwarding state
Apr 27 23:01:58 Bacardi kernel: [ 164.002257] br0: topology change
detected, propagating
Apr 27 23:01:58 Bacardi kernel: [ 164.002262] br0: port 1(eth0)
entering forwarding state
Apr 27 23:01:58 Bacardi dhclient: Internet Systems Consortium DHCP Client V3.0.6
Apr 27 23:01:58 Bacardi dhclient: Copyright 2004-2007 Internet Systems
Consortium.
Apr 27 23:01:58 Bacardi dhclient: All rights reserved.
Apr 27 23:01:58 Bacardi dhclient: For info, please visit
http://www.isc.org/sw/dhcp/
Apr 27 23:01:58 Bacardi dhclient:
Apr 27 23:01:59 Bacardi dhclient: Listening on LPF/br0/00:0a:e4:ae:7e:4c
Apr 27 23:01:59 Bacardi dhclient: Sending on LPF/br0/00:0a:e4:ae:7e:4c
Apr 27 23:01:59 Bacardi dhclient: Sending on Socket/fallback
Apr 27 23:02:02 Bacardi dhclient: DHCPDISCOVER on br0 to
255.255.255.255 port 67 interval 8
Apr 27 23:02:10 Bacardi dhclient: DHCPDISCOVER on br0 to
255.255.255.255 port 67 interval 12
Apr 27 23:02:22 Bacardi dhclient: DHCPDISCOVER on br0 to
255.255.255.255 port 67 interval 11
Apr 27 23:02:33 Bacardi dhclient: No DHCPOFFERS received.
Apr 27 23:02:33 Bacardi dhclient: No working leases in persistent
database - sleeping.
Apr 27 23:02:33 Bacardi avahi-autoipd(br0)[7686]: Found user
'avahi-autoipd' (UID 105) and group 'avahi-autoipd' (GID 113).
Apr 27 23:02:33 Bacardi avahi-autoipd(br0)[7686]: Successfully called chroot().
Apr 27 23:02:33 Bacardi avahi-autoipd(br0)[7686]: Successfully dropped
root privileges.
Apr 27 23:02:33 Bacardi avahi-autoipd(br0)[7686]: Starting with
address 169.254.7.81
Apr 27 23:02:38 Bacardi avahi-autoipd(br0)[7686]: Callout BIND,
address 169.254.7.81 on interface br0
Apr 27 23:02:42 Bacardi avahi-autoipd(br0)[7686]: Successfully claimed
IP address 169.254.7.81
-----------------------------------------------------------
So I'm sure the wireless network card is able to bridge (as it works
in Windows). I'm not sure if it works in Ubuntu. But what can the
problem be? Is there something wrong in my configuration file? When do
you choose dhcp/static/manual Which log files should I check, just to
understand what's going wrong?
Thanks for you time to read this mail. I really hope somebody can help
me out here :-( ...
Jochen
richardvoigt at gmail.com
2009-Apr-27 21:36 UTC
[Bridge] Ubuntu: network bridging between wireless and wired connection fails
Don't run dhcp on interfaces (eth1) that are joined to the bridge, only on the bridge interface itself. On Mon, Apr 27, 2009 at 4:13 PM, Jochen Hebbrecht <jochenhebbrecht at gmail.com> wrote:> Hi everybody, > > First of all, let me say that I searched a lot on the internet. I > spent several hours sitting after my notebook, but I can't configure > my network bridge in Ubuntu. I'm really desperate, so I hope somebody > can point me out what I'm doing > > Hardware: > ----------------------------------------------------------- > $ lspci | grep controller > 06:05.0 Network controller: Intel Corporation PRO/Wireless 2200BG > Network Connection (rev 05) > 06:07.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169 > Gigabit Ethernet (rev 10) > ----------------------------------------------------------- > > Kernel: > ----------------------------------------------------------- > $ uname -a > Linux Bacardi 2.6.24-23-generic #1 SMP Wed Apr 1 21:47:28 UTC 2009 > i686 GNU/Linux > ----------------------------------------------------------- > > I first tested the hardware in windows xp sp3. I selected the 2 > interfaces, right clicked on them and picked up: "Create network > bridge". 30 seconds later, I was having a network bridge between my > wired and wireless controller :-). Everything was working smoothly. > > Now, I want to do the same thing on my Ubuntu installation (same > notebook, just dual booting to Ubuntu). I thought it would be easy, > but apparantly, it isn't :-( ... > > This is my /etc/network/interfaces file: > > ----------------------------------------------------------- > $ cat /etc/network/interfaces > auto lo > iface lo inet loopback > > auto eth0 > iface eth0 inet manual > > 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 > ----------------------------------------------------------- > > So, eth1 is my wireless connection, eth0 is my wired connection. > Without the bridge, I'm able to make a connection on my wireless side, > as on my wired side. > > When I bring up the bridge, nothing works ... I'm not able to ping > anything. > This is my routing table: > > ----------------------------------------------------------- > $ route -n > Kernel IP routing table > Destination Gateway Genmask Flags Metric Ref Use > Iface > 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 br0 > 0.0.0.0 0.0.0.0 0.0.0.0 U 1000 0 0 b > ----------------------------------------------------------- > > And ifconfig -a information > ----------------------------------------------------------- > $ ifconfig -a > br0 Link encap:Ethernet HWaddr 00:0a:e4:ae:7e:4c > inet6 addr: fe80::20a:e4ff:feae:7e4c/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:11 errors:0 dropped:0 overruns:0 frame:0 > TX packets:96 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:3927 (3.8 KB) TX bytes:6970 (6.8 KB) > > br0:avahi Link encap:Ethernet HWaddr 00:0a:e4:ae:7e:4c > inet addr:169.254.7.81 Bcast:169.254.255.255 Mask:255.255.0.0 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > > eth0 Link encap:Ethernet HWaddr 00:0a:e4:ae:7e:4c > inet6 addr: fe80::20a:e4ff:feae:7e4c/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:0 errors:0 dropped:0 overruns:0 frame:0 > TX packets:107 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:0 (0.0 B) TX bytes:12221 (11.9 KB) > Interrupt:20 Base address:0xc000 > > eth1 Link encap:Ethernet HWaddr 00:15:00:1f:20:a6 > inet6 addr: fe80::215:ff:fe1f:20a6/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:80 errors:0 dropped:0 overruns:0 frame:0 > TX packets:111 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:844783 (824.9 KB) TX bytes:128864 (125.8 KB) > Interrupt:21 Base address:0xc000 Memory:c8006000-c8006fff > > lo Link encap:Local Loopback > inet addr:127.0.0.1 Mask:255.0.0.0 > inet6 addr: ::1/128 Scope:Host > UP LOOPBACK RUNNING MTU:16436 Metric:1 > RX packets:1734 errors:0 dropped:0 overruns:0 frame:0 > TX packets:1734 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:88276 (86.2 KB) TX bytes:88276 (86.2 KB) > ----------------------------------------------------------- > > This is the output of syslog after restarting the networking daemon > > ----------------------------------------------------------- > Apr 27 23:01:32 Bacardi dhclient: There is already a pid file > /var/run/dhclient.eth1.pid with pid 134519072 > Apr 27 23:01:32 Bacardi dhclient: Internet Systems Consortium DHCP Client > V3.0.6 > Apr 27 23:01:32 Bacardi dhclient: Copyright 2004-2007 Internet Systems > Consortium. > Apr 27 23:01:32 Bacardi dhclient: All rights reserved. > Apr 27 23:01:32 Bacardi dhclient: For info, please visit > http://www.isc.org/sw/dhcp/ > Apr 27 23:01:32 Bacardi dhclient: > Apr 27 23:01:32 Bacardi kernel: [ 158.946623] > ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready > Apr 27 23:01:33 Bacardi dhclient: Listening on LPF/eth1/00:15:00:1f:20:a6 > Apr 27 23:01:33 Bacardi dhclient: Sending on LPF/eth1/00:15:00:1f:20:a6 > Apr 27 23:01:33 Bacardi dhclient: Sending on Socket/fallback > Apr 27 23:01:36 Bacardi dhclient: DHCPDISCOVER on eth1 to > 255.255.255.255 port 67 interval 8 > Apr 27 23:01:36 Bacardi dhclient: DHCPOFFER of 192.168.1.111 from > 192.168.1.1 > Apr 27 23:01:36 Bacardi dhclient: DHCPREQUEST of 192.168.1.111 on eth1 > to 255.255.255.255 port 67 > Apr 27 23:01:37 Bacardi dhclient: DHCPACK of 192.168.1.111 from 192.168.1.1 > Apr 27 23:01:37 Bacardi dhclient: bound to 192.168.1.111 -- renewal in > 42920 seconds. > Apr 27 23:01:42 Bacardi kernel: [ 161.516967] eth1: no IPv6 routers > present > Apr 27 23:01:43 Bacardi kernel: [ 74.578698] Bridge firewalling > registered > Apr 27 23:01:43 Bacardi kernel: [ 74.578967] br0: Dropping > NETIF_F_UFO since no NETIF_F_HW_CSUM feature. > Apr 27 23:01:43 Bacardi kernel: [ 74.581732] device eth0 entered > promiscuous mode > Apr 27 23:01:43 Bacardi kernel: [ 74.581740] > audit(1240866103.181:3): dev=eth0 prom=256 old_prom=0 auid=4294967295 > Apr 27 23:01:43 Bacardi kernel: [ 74.583808] device eth1 entered > promiscuous mode > Apr 27 23:01:43 Bacardi kernel: [ 74.583816] > audit(1240866103.181:4): dev=eth1 prom=256 old_prom=0 auid=4294967295 > Apr 27 23:01:43 Bacardi kernel: [ 74.586637] br0: port 2(eth1) > entering learning state > Apr 27 23:01:43 Bacardi kernel: [ 74.586641] br0: port 1(eth0) > entering learning state > Apr 27 23:01:48 Bacardi ntpdate[7485]: can't find host ntp.univ-lyon1.fr > Apr 27 23:01:48 Bacardi ntpdate[7485]: sendto(91.189.94.4): Network is > unreachable > Apr 27 23:01:51 Bacardi last message repeated 3 times > Apr 27 23:01:52 Bacardi ntpdate[7485]: no server suitable for > synchronization found > Apr 27 23:01:53 Bacardi kernel: [ 162.782421] br0: no IPv6 routers present > Apr 27 23:01:58 Bacardi kernel: [ 164.002241] br0: topology change > detected, propagating > Apr 27 23:01:58 Bacardi kernel: [ 164.002252] br0: port 2(eth1) > entering forwarding state > Apr 27 23:01:58 Bacardi kernel: [ 164.002257] br0: topology change > detected, propagating > Apr 27 23:01:58 Bacardi kernel: [ 164.002262] br0: port 1(eth0) > entering forwarding state > Apr 27 23:01:58 Bacardi dhclient: Internet Systems Consortium DHCP Client > V3.0.6 > Apr 27 23:01:58 Bacardi dhclient: Copyright 2004-2007 Internet Systems > Consortium. > Apr 27 23:01:58 Bacardi dhclient: All rights reserved. > Apr 27 23:01:58 Bacardi dhclient: For info, please visit > http://www.isc.org/sw/dhcp/ > Apr 27 23:01:58 Bacardi dhclient: > Apr 27 23:01:59 Bacardi dhclient: Listening on LPF/br0/00:0a:e4:ae:7e:4c > Apr 27 23:01:59 Bacardi dhclient: Sending on LPF/br0/00:0a:e4:ae:7e:4c > Apr 27 23:01:59 Bacardi dhclient: Sending on Socket/fallback > Apr 27 23:02:02 Bacardi dhclient: DHCPDISCOVER on br0 to > 255.255.255.255 port 67 interval 8 > Apr 27 23:02:10 Bacardi dhclient: DHCPDISCOVER on br0 to > 255.255.255.255 port 67 interval 12 > Apr 27 23:02:22 Bacardi dhclient: DHCPDISCOVER on br0 to > 255.255.255.255 port 67 interval 11 > Apr 27 23:02:33 Bacardi dhclient: No DHCPOFFERS received. > Apr 27 23:02:33 Bacardi dhclient: No working leases in persistent > database - sleeping. > Apr 27 23:02:33 Bacardi avahi-autoipd(br0)[7686]: Found user > 'avahi-autoipd' (UID 105) and group 'avahi-autoipd' (GID 113). > Apr 27 23:02:33 Bacardi avahi-autoipd(br0)[7686]: Successfully called > chroot(). > Apr 27 23:02:33 Bacardi avahi-autoipd(br0)[7686]: Successfully dropped > root privileges. > Apr 27 23:02:33 Bacardi avahi-autoipd(br0)[7686]: Starting with > address 169.254.7.81 > Apr 27 23:02:38 Bacardi avahi-autoipd(br0)[7686]: Callout BIND, > address 169.254.7.81 on interface br0 > Apr 27 23:02:42 Bacardi avahi-autoipd(br0)[7686]: Successfully claimed > IP address 169.254.7.81 > ----------------------------------------------------------- > > > So I'm sure the wireless network card is able to bridge (as it works > in Windows). I'm not sure if it works in Ubuntu. But what can the > problem be? Is there something wrong in my configuration file? When do > you choose dhcp/static/manual Which log files should I check, just to > understand what's going wrong? > > > Thanks for you time to read this mail. I really hope somebody can help > me out here :-( ... > > Jochen > _______________________________________________ > Bridge mailing list > Bridge at lists.linux-foundation.org > https://lists.linux-foundation.org/mailman/listinfo/bridge >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.linux-foundation.org/pipermail/bridge/attachments/20090427/4bc45465/attachment-0001.htm
Ross Vandegrift
2009-Apr-29 16:53 UTC
[Bridge] Ubuntu: network bridging between wireless and wired connection fails
On Wed, Apr 29, 2009 at 06:40:25PM +0200, Jochen Hebbrecht wrote:> Yes, it is plugged in ( Ubuntu says: link is ready ). > I also tried statically, but no improvements :-( ...Is your wireless access point also bridging between the wired and the wireless? If so, then you have two bridges circulating packets between the wired and wireless networks. You should either turn on STP so loops can be detected and prevented or unplug eth0 to simulate that scenario. Ross -- Ross Vandegrift ross at kallisti.us "If the fight gets hot, the songs get hotter. If the going gets tough, the songs get tougher." --Woody Guthrie
Jochen Hebbrecht
2009-Apr-29 21:21 UTC
[Bridge] Ubuntu: network bridging between wireless and wired connection fails
Ross Vandegrift schreef:> On Wed, Apr 29, 2009 at 06:40:25PM +0200, Jochen Hebbrecht wrote: > >> Yes, it is plugged in ( Ubuntu says: link is ready ). >> I also tried statically, but no improvements :-( ... >> > > Is your wireless access point also bridging between the wired and the > wireless? If so, then you have two bridges circulating packets > between the wired and wireless networks. >What do you mean with "wireless access point"? My eth1? I think the bridge is ok. In one of my previous mails, you see the sniffer logging DHCP discovers on eth0 AND eth1> > You should either turn on STP so loops can be detected and prevented > or unplug eth0 to simulate that scenario. >If I unplug eth0, the situation stays the same. Bridge is ok. But no IP received ... -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.linux-foundation.org/pipermail/bridge/attachments/20090429/f6c3ac6d/attachment.htm
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