Cedric Roux
56c66c09aa
Pre-ci test passed git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4000 818b1a75-f10b-46b9-bf7c-635c3b92a50f
129 lines
5.0 KiB
Plaintext
Executable File
129 lines
5.0 KiB
Plaintext
Executable File
Until Mobile IPv6 extensions are integrated in the mainline kernel,
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you may have to replace your kernel with one that has Mobile IPv6
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support. This involves downloading kernel source and the
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modifications to support Mobile IPv6, and patching, configuring,
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compiling and last installing the new kernel in your system.
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If you have never patched or compiled a Linux kernel, you should take
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a look at the Kernel HOWTO or Kernel Rebuild Guide available through
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the Linux Documentation Project's site (http://www.tldp.org/). Be
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careful, you can render your system unbootable quite easily.
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Kernel patches usually only work for the exact kernel version they
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were made for. Therefore, you should not try to use mismatching
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kernel and patch versions (unless you know what you are doing, and are
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prepared to fix possible conflicts).
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All that said, here follows the instructions.
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1. Check if your current kernel supports Mobile IPv6 extensions. To
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do this we have provided a shell script to check it for you. Just
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run:
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./chkconf_kernel.sh
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This depends on /proc/config.gz to be available. It may tell you
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one of three things: 1) your kernel does not support
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/proc/config.gz, 2) your current running kernel does not support
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MIPv6 extensions, or 3) your current kernel supports everything we
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need. If the answer was three, you are very lucky and can just
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skip rest of this document. Otherwise, proceed to the next step.
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2. Check if your current kernel sources support Mobile IPv6
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extensions. Again, you can use the same tool as in the previous
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section. Now you just have to locate your kernel sources (usually
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in /usr/src/linux) and supply that path to the script:
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./chkconf_kernel.sh /usr/src/linux
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Now the script will tell you: 1) if support for Mobile IPv6 is
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present or not, and 2) if it has been properly configured. If
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support is there and it has been configured (and you know these
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settings where used for your running kernel), again you are lucky
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and may skip rest of this document. If the support was found, but
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not configured, skip to step 5. For most of us, just continue on.
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3. Get the latest Mobile IPv6 kernel patch. Download the latest patch
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from http://www.mobile-ipv6.org/. The patch will have a version
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number that tells which kernel version it was built for. As said
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before, you really should use that kernel version only.
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Next you should get a fresh kernel source tree. Usually, you
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should not use the kernel tree that came with your distribution,
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since distributors often apply their own patches to the tree, which
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might make it incompatible with the Mobile IPv6 patch. Safest way
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is to get your kernel source from kernel.org or some other reliable
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source. Grab a source tree that has matching version number with
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the Mobile IPv6 patch.
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4. Unpack kernel source tree and patch the kernel tree. Once you've
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unpacked the source tree, change to the source tree's root
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directory (e.g. /usr/src/linux). Apply the Mobile IPv6 patch
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(replace mipv6-patch.gz with the actual path of the patch file you
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downloaded earlier):
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zcat mipv6-patch.gz | patch -p1
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You should get information about the patching process, but no error
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messages. If no errors appeared, you are all done here and can
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proceed to the next step.
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5. Now your kernel tree is ready for configuration. You may want to
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copy your old .config from an old kernel source tree (or even
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/proc/config.gz, if supported) to keep other configuration options
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the same as before. Run your favorite 'make *config' (e.g. make
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menuconfig). Make sure you have at least the following options
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set:
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CONFIG_EXPERIMENTAL=y
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CONFIG_SYSVIPC=y
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CONFIG_PROC_FS=y
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CONFIG_NET=y
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CONFIG_INET=y
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CONFIG_IPV6=y
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CONFIG_IPV6_MIP6=y
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CONFIG_XFRM=y
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CONFIG_XFRM_USER=y
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CONFIG_XFRM_SUB_POLICY=y
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CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=y
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The Home Agent and Mobile Node also need:
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CONFIG_IPV6_TUNNEL=y
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CONFIG_IPV6_ADVANCED_ROUTER=y
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CONFIG_IPV6_MULTIPLE_TABLES=y
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The Mobile Node also needs:
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CONFIG_IPV6_SUBTREES=y
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For some additional movement indicators on the Mobile Node you may set:
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CONFIG_ARPD=y
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For IPsec support you need at least:
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CONFIG_INET6_ESP=y
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If you plan to use IPsec tunnel mode you need:
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CONFIG_NET_KEY=y
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CONFIG_NET_KEY_MIGRATE=y
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Do not turn CONFIG_IPV6_MIP6_DEBUG on, unless you are specifically
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debugging the Mobile IPv6 extensions in the kernel. This options
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will degrade system performance and swamp you with too many debug
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messages.
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If you are unsure you got everything right, you can check your
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configuration with the tool used in steps 1 and 2.
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./chkconf_kernel.sh /usr/src/linux
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Fix any warnings and proceed to the next step.
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6. Compile and install the kernel. Proceed with the user space
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installation described in INSTALL. Be sure to reboot to your new
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kernel before trying to run the user space daemon.
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