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Thread: IPv6?

  1. #1

    IPv6?

    Hi,

    Can someone give a quick over view on how to get IPv6 addresses via the manager and then assign them to your server of choice?

    Cheers
    Hello

  2. #2

    Re: IPv6?

    The IPv6 address is listed in the manager for every server you rent, under the details page on the right side (along with the IPv4 address, server number, rack number etc.).

  3. #3

    Re: IPv6?

    Ok,

    but do you know how I would go about assigning one of these IP's to Debian Etch 4.0?
    Hello

  4. #4

    Re: IPv6?

    I would imagine the IPv6, just like the IPv4, would be automatically assigned to each server, though I am not too sure as I have never used the feature.

  5. #5
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  6. #6
    HG XXXL + MegaRAID Myatu's Avatar
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    Re: IPv6?

    Here's how I do it in /etc/network/interfaces:
    Code:
    iface eth0 inet6 static
            address 2001:41d0:XXXX:YYYY::ZZZZ
            netmask 56
            gateway 2001:41d0:XXXX:YYff:ff:ff:ff:ff
    So, assuming you have 2001:41d0:1:abcd as your prefix, it would read as:
    Code:
    iface eth0 inet6 static
            address 2001:41d0:1:abcd::1
            netmask 56
            gateway 2001:41d0:1:abff:ff:ff:ff:ff
    You can add more than one IP address to the same interface, but it doesn't work the same as with IPv4 aliases (ie, eth0:0). This is one solution that I am using:

    Code:
    iface eth0 inet6 static
            address 2001:41d0:1:abcd::1
            netmask 56
            gateway 2001:41d0:1:abff:ff:ff:ff:ff
            up /sbin/ifconfig eth0 inet6 add 2001:41d0:1:abcd::2/56
            up /sbin/ifconfig eth0 inet6 add 2001:41d0:1:abcd::3/56
    If you have Proxmox installed, you must enable NDP (simply add this in the same way as up /sbin/ifconfig as described above...):
    Code:
    post-up echo 1 > /proc/sys/net/ipv6/conf/eth0/proxy_ndp

  7. #7
    HG XXXL + MegaRAID Myatu's Avatar
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    Re: IPv6?

    Oh, by the way, the prefix (what you see in the manager, less the ::/64 part) is all you need. With the above, you can assign anything between 0000:0000:0000:0000 and ffff:ffff:ffff:ffff and it'll be immediately accessible from the internet. You don't have to do anything else in the OVH manager for this. The only exception is reverse-ip lookups, which works the same way as IPv4 reverse lookups.

    For testing purposes, in case your own ISP doesn't support IPv6, you can use websites such as http://www.sixxs.net/tools/traceroute/ for a traceroute / ping to your server using IPv6.

  8. #8

    Re: IPv6?

    What did you install to enable inet6?

    I keep getting 'No support for INET6 on this system.'

    Debian Etch 4.0 here. New box arriving tommorow is Debian Etch 5.0 maybe will come as default?
    Hello

  9. #9
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    Re: IPv6?

    try:
    Code:
    modprobe ipv6 && lsmod | grep ipv6
    If you get "FATAL: Module ipv6 not found", your kernel likely doesn't support ipv6. Otherwise, you should see ipv6 listed and you'll be able to add inet6 to your interface (in that case, you'd have to make sure the ipv6 gets loaded at boot time - it should by default though).

  10. #10

    Re: IPv6?

    # modprobe ipv6 && lsmod | grep ipv6
    FATAL: Could not load /lib/modules/2.6.27.10-grsec-xxxx-grs-ipv4-64/modules.dep: No such file or directory
    hrm?
    Hello

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