Network bridge error

[Xaver]

Hi,

i've tried to bridge my eth1 with the tap0 device for using it with openvpn in bridging modus.

I've executed the brctl addbr command as follows: 'brctl addbr br0' which leads to the following error:

add bridge failed: Invalid argument

I've tried to update bridge-utils but I can't find a newer version then 1.2.1.

Attached you can find a strace output fpr my brctl command. It would be nice if someone could help me out with this problem...

readynas-pro:~# strace brctl addbr br0
execve("/usr/sbin/brctl", ["brctl", "addbr", "br0"], [/* 15 vars */]) = 0
brk(0)                                  = 0x804e000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xf7ee3000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=18669, ...}) = 0
mmap2(NULL, 18669, PROT_READ, MAP_PRIVATE, 3, 0) = 0xf7ede000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libsysfs.so.1", O_RDONLY)    = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\220%\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=44792, ...}) = 0
mmap2(NULL, 47852, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xf7ed2000
mmap2(0xf7edd000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa) = 0xf7edd000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\260e\1"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1294572, ...}) = 0
mmap2(NULL, 1300080, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xf7d94000
mmap2(0xf7ecc000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x138) = 0xf7ecc000
mmap2(0xf7ecf000, 9840, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xf7ecf000
close(3)                                = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xf7d93000
set_thread_area({entry_number:-1 -> 12, base_addr:0xf7d93ad0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0xf7ecc000, 4096, PROT_READ)   = 0
munmap(0xf7ede000, 18669)               = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 3
brk(0)                                  = 0x804e000
brk(0x806f000)                          = 0x806f000
open("/proc/mounts", O_RDONLY)          = 4
fstat64(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xf7ee2000
read(4, "rootfs / rootfs rw 0 0\n/dev/md0 "..., 1024) = 456
close(4)                                = 0
munmap(0xf7ee2000, 4096)                = 0
lstat64("/sys/class/net", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
ioctl(3, 0x89a0, 0xff895eab)            = -1 ENOPKG (Package not installed)
ioctl(3, SIOCSIFBR, 0xff8953e0)         = -1 EINVAL (Invalid argument)
write(2, "add bridge failed: Invalid argum"..., 36add bridge failed: Invalid argument
) = 36
exit_group(1)                           = ?
Process 3005 detached

[hoogends1]

Same problem here:
I'm trying to setup an openvpn server on my Readynas Pro and i get same error.
Any1 got an idea if bridging will work at all on the Readynas Pro ?

I installed openvpn, bridge-utils via apt-get and i got to the point that i had a working routing vpn.
But i want to access all systems in my LAN via VPN, so bridging looked the way to go.
(Not sure if this also possible with routing vpn)

Regards.

[lurium]

Still not working with bridge-utils_1.4-5_i386.deb

http://www.linuxfoundation.org/collabor ... ing/bridge


"You need to enable bridging in the kernel.
Set "networking -> 802.1d Ethernet Bridging" to either yes or module "

nas:~# modprobe bridge
FATAL: Module bridge not found.

So basically the modules is missing, asked yoh-dah for the kernel modules tar.gz that fits the kernel in RAIDiator 4.2.16-T25.

Yes im a crazy beta tester 🙂

[cgalpin]

Did you ever get this figured out?

[lurium]

Nope, readynas never posted the kernel modules like they promised with the next beta release T33.

Without them we cant get the module into the kernel.

[cgalpin]

That sucks. Ok, maybe time to put this pogoplug that's been sitting in a box for years to good use 🙂

[igorek1]

now that the final firmware is out, anyway to make the bridging work?

thanks

[WhoCares_]

If it's just the bridging module that's missing, I could provide that. I'm currently compiling kernel modules for the ReadyNAS anyway.

-Stefan

[igorek1]

Great, can you post it?

thanks

[WhoCares_]

For what ReadyNAS? Sparc or Intel, 64 or 32 bit?

-Stefan

[igorek1]

for readynas pro

2.6.37.5.RN.x86_64.2.1

thanks

[WhoCares_]

http://whocares.de/rpro/bridge_modules_64.tar.gz

To install:

cd
wget http://whocares.de/rpro/bridge_modules_64.tar.gz
cd /lib/modules/2.6.37.5.RNx86_64.2.1/kernel
tar xzf /root/bridge_modules_64.tar.gz
depmod -a

-Stefan

[igorek1]

Thanks Stefan, I got one step closer.

Now everytime I create a bridge, 30 sec after, I loose connection to the NAS, until I reboot. do you have any suggestions?


thanks again for your help

[WhoCares_]

Without the output from "dmesg" or excerpts from /var/log/syslog and /var/log/messages there's not much I can suggest. Maybe there's a background task on the ReadyNAS checking for network connections that is getting confused by the bridge setup but I honestly don't know.

-Stefan

[erupter]

Hi Whocares.
Did you do any other work on the bridge-utils?
I would appreciate the module for the sparc platform.