 Take our Quick Survey and enter a drawing for a chance to win a $100 VISA Gift Card.This section describes what you need and how you do to prepare
your bridge.
Here you can find a list of the files and down-loads you will need
for the setup of the bridge.
If you have one of the mentioned files or packages on your
distribution, of course there is no need to create network load.
I'll only mention the files for the 2.2.14 kernel.
If you want to try a different one (e.g. 2.2.15 or the recent
development kernel) just replace the kernel version number and
look whether you find it.
Important: You have read the abstract, didn't you?
So you know that there is no need to download any kernel-patch if
you're working with a kernel later than 2.3.47.
File and package list - Unpatched kernel-sources
E.g. linux-2.2.14.tar.bz2 available
from your local kernel.org mirror.
Please check first if you find it in your distribution (take
unpatched kernel-sources).
If you don't, please check
The Linux Kernel
Archive Mirror System for a close by mirror and down-load
it from there.
- Bridge patches
Note: If your kernel is later than 2.3.47 you don't need this.
The bridging is part of the mainstream from that version.
Get the bridge kernel patches for your kernel
version from
http://www.math.leidenuniv.nl/~buytenh/bridge/.
Identify the file by the kernel number.
Note: There are also patches allowing to work with IP chains.
I never tried it, for I don't see the need to fire-wall
inside my LAN, and absolutely no need to bridge against
the outer world. Feel free to contribute about that issue.
- Bridge configuration utilities
You also will need the bridge configuration utilities to
set up the bridge Section 6.
You can also download them from http://www.math.leidenuniv.nl/~buytenh/bridge/.
Note: If your kernel is later than 2.3.47 you don't need this.
The bridging is part of the mainstream from that version.
Apply the bridging patch your kernel.
If you don`t know how to do that read the
Kernel-HOWTO which can be found in your distribution or at
http://www.icewalkers.com/Linux/Howto/Kernel-HOWTO.html
Example 1. Applying a kernel patch root at mbb-1:~ # cd /usr/src/linux-2.2.14
root at mbb-1:/usr/src/linux-2.2.14 # patch -p1 < \
bridge-0.0.5-against-2.2.14.diff
.
.
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Now it's time we configure our freshly patched kernel to create
the ability to bridge.
Run make config,
make menuconfig or the
click-o-rama make xconfig.
Select bridging in the networking
option section to be compiled as a module.
AFAIK there is no strong reason why not to
compile it as a kernel module, whereas I heard rumors about
problems with compiling the bridging code directly into the kernel.
Compile your kernel Example 2.
Make the new compiled kernel-image to be loaded.
I don't know if the kernel patches only apply to the bridging-module
or also modify some interfaces inside vmlinuz.
So it might not be a error to give a reboot after you updated the
kernel-image.
Example 2. Commands To Compile Your Kernel root at mbb-1:/usr/src/linux-2.2.14 # make dep clean zImage modules modules_install zlilo
...
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This is how to compile and install from the scratch.
Just unzip the utilities-tarball, cd
into the newly created directory and give a make.
Example 3. Commands To Compile Your Bridge-Utilities root at mbb-1:/usr/src/linux-2.2.14 # cd /usr/local/src
root at mbb-1:/usr/local/src/ # tar xzvf bridge-utils-0.9.1.tar.gz
.....
....
root at mbb-1:/usr/local/src # cd bridge
root at mbb-1:/usr/local/src/bridge # make
.....
....
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After the compilation shown in
Example 3 have worked properly, you
can copy the executables to let's say
/usr/local/sbin/ (at least I did).
So the commands you have to give should be clear, but to be complete
see Example 4
Example 4. Copy The Binaries Of The Utilities root at mbb-1:/usr/local/src/bridge # cd brctl
root at mbb-1:/usr/local/src/bridge/brctl # cp brctl /usr/local/sbin
root at mbb-1:/usr/local/src/bridge/brctl # chmod 700 /usr/local/sbin/brctl
root at mbb-1:/usr/local/src/bridge/brctl # cp brctld /usr/local/sbin
root at mbb-1:/usr/local/src/bridge/brctl # chmod 700 /usr/local/sbin/brctld
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Also now you can copy the new man-page to a decent place,
as shown in Example 5.
Example 5. Copy The Man-page Of brctl root at mbb-1:/usr/local/src/bridge # cd doc
root at mbb-1:/usr/local/src/bridge/doc # gzip -c brctl.8 > /usr/local/man/man8/brctl.8.gz
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