Kimsufi IPV6 Proxmox Client Setting

If you have a Kimsufi Dedicated, you got a full /64 not just /128 which is a single IP, lets use it.

First we need to enable Forwarding on the Node in: /etc/sysctl.conf

net.ipv6.conf.all.forwarding=1
net.ipv6.conf.default.forwarding=1
net.ipv6.conf.all.proxy_ndp=1

Add this to the bottom on the file.

Next, we need to add IPv6 to our vmbr2, which the VM should be connected to.

iface vmbr2 inet6 static
     address 2601:xxxx:xx:xxx::2
     netmask 64
     bridge_ports none
     bridge_stp off
     bridge_fd 0
     post-up echo 1 > /proc/sys/net/ipv6/conf/all/proxy_ndp
     post-up echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
     post-up echo 1 > /proc/sys/net/ipv6/conf/default/forwarding
     post-up /sbin/ip -f inet6 neigh add proxy 2601:xxxx:xx:xxx::2 dev vmbr2
     post-up /sbin/ip -f inet6 neigh add proxy 2601:xxxx:xx:xxx::3 dev vmbr0
     post-up /sbin/ip -f inet6 route add 2601:xxxx:xx:xxx::3 dev vmbr2

The next thing you need to do, restart your network on your Dedi with:

 service networking restart

Now Login into your VM and add this to your /etc/network/interfaces:

iface eth0 inet6 static
     address 2601:xxxx:xx:xxx::3
     netmask 64
     gateway 2601:xxxx:xx:xxx::2

Restart your Networking on the VM:

 service networking restart

If it dosen’t respond after a while, try to Reboot your VM over Proxmox. Now we still need to add IPv6 DNS Server to our /etc/resolv.conf:

2001:4860:4860::8888
2001:4860:4860::8844

These are the IPv6 Nameservers from Google but you can use different ones.

If you run:

ping6 google.com

You should get a response and you should be able to reach your VM under this IPv6 which you configured earlier.

[[email protected] ~]# bash yabs.sh
# ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## #
#              Yet-Another-Bench-Script              #
#                     v2021-10-09                    #
# https://github.com/masonr/yet-another-bench-script #
# ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## #

Thu Dec  2 09:13:30 UTC 2021

Basic System Information:
---------------------------------
Processor  : Intel(R) Xeon(R) CPU E5-1620 v2 @ 3.70GHz
CPU cores  : 1 @ 1377.671 MHz
AES-NI     : ✔ Enabled
VM-x/AMD-V : ✔ Enabled
RAM        : 5.0 GiB
Swap       : 10.0 GiB
Disk       : 78.2 GiB

fio Disk Speed Tests (Mixed R/W 50/50):
---------------------------------
Block Size | 4k            (IOPS) | 64k           (IOPS)
  ------   | ---            ----  | ----           ----
Read       | 102.18 MB/s  (25.5k) | 1.96 GB/s    (30.7k)
Write      | 102.44 MB/s  (25.6k) | 1.97 GB/s    (30.9k)
Total      | 204.62 MB/s  (51.1k) | 3.94 GB/s    (61.6k)
           |                      |
Block Size | 512k          (IOPS) | 1m            (IOPS)
  ------   | ---            ----  | ----           ----
Read       | 100.85 MB/s    (196) | 1.95 GB/s     (1.9k)
Write      | 106.21 MB/s    (207) | 2.08 GB/s     (2.0k)
Total      | 207.07 MB/s    (403) | 4.04 GB/s     (3.9k)

iperf3 Network Speed Tests (IPv6):
---------------------------------
Provider        | Location (Link)           | Send Speed      | Recv Speed
                |                           |                 |
Clouvider       | London, UK (10G)          | 93.9 Mbits/sec  | 905 Mbits/sec
Online.net      | Paris, FR (10G)           | 93.9 Mbits/sec  | 903 Mbits/sec
WorldStream     | The Netherlands (10G)     | 91.9 Mbits/sec  | 882 Mbits/sec
WebHorizon      | Singapore (1G)            | 13.2 Mbits/sec  | 151 Mbits/sec
Clouvider       | NYC, NY, US (10G)         | 38.4 Mbits/sec  | 331 Mbits/sec
Clouvider       | Los Angeles, CA, US (10G) | 20.5 Mbits/sec  | 204 Mbits/sec