IPv6 tunnel pada OpenVZ VPS

Last Updated on Wednesday, 13 December 2017 06:15 Written by BiRU Wednesday, 13 December 2017 06:14

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Sebelumnya pastikan dulu os dalam vps openvz dapat membuat device tun.

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[root@kebo]# cat /dev/net/tun
cat: /dev/net/tun: File descriptor in bad state

Jika hasilnya tidak seperti di atas , silahkan kontak customer support untuk mengaktifkan permission pembuatan tun.

Oke lanjut,,

Sebelumnya pastikan sudah mendaftar di tunnelbroker dan sudah membuat tunnel pada control panelnya.

Download dan install aplikasi tb-tun untuk membuat interface tun.

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yum -y install iproute gcc
cd /tmp
wget https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/tb-tun/tb-tun_r18.tar.gz
tar -xf tb-tun_r18.tar.gz
gcc tb_userspace.c -l pthread -o tb_userspace
cp /tmp/tb_userspace /usr/bin/

Buat init script untuk menjalankannya

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nano /etc/init.d/ipv6tb

sesuaikan ipv4 dan ipv6 dengan ip public vps dan yang didapat dari tunnelbroker

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#! /bin/sh
### BEGIN INIT INFO
# Provides:          ipv6
# Required-Start:    $local_fs $all
# Required-Stop:     $local_fs $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts the ipv6 tunnel
# Description:       ipv6 tunnel start-stop-daemon
### END INIT INFO
# /etc/init.d/ipv6tb
touch /var/lock/ipv6tb
IPV4_VPS="xxx.xxx.xxx.xxx"
IPV4_TB="xxx.xxx.xxx.xxx"
CLIENT_IPV6_TB="xxxx:xxx:xx:xxx::2/64"
ROUTED_64_TB="xxxx:xxx:xx:xxx::/64"
case "$1" in
start)
echo "Starting ipv6tb "
setsid /usr/bin/tb_userspace tb $IPV4_TB $IPV4_VPS sit > /dev/null 2>&1 &
sleep 3s
ifconfig tb up
ifconfig tb inet6 add $CLIENT_IPV6_TB
ifconfig tb inet6 add $ROUTED_64_TB
ifconfig tb mtu 1480
route -A inet6 add ::/0 dev tb
route -A inet6 del ::/0 dev venet0
;;
stop)
echo "Stopping ipv6tb"
ifconfig tb down
route -A inet6 del ::/0 dev tb
killall tb_userspace
;;
*)
echo "Usage: /etc/init.d/ipv6tb {start|stop}"
exit 1
;;
esac
exit 0

Ubah chmod dan jadikan startup

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chmod 0755 /etc/init.d/ipv6tb
update-rc.d ipv6tb defaults

Kemudian jalankan script tersebut

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/etc/init.d/ipv6tb start

Sekarang coba cek apakah ipv6 sudah bisa digunakan

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[root@kebo]# ping6 -c 5 ipv6.google.com
PING ipv6.google.com(fra02s20-in-x12.1e100.net) 56 data bytes
64 bytes from fra02s20-in-x12.1e100.net: icmp_seq=1 ttl=58 time=11.4 ms
64 bytes from fra02s20-in-x12.1e100.net: icmp_seq=2 ttl=58 time=11.3 ms
64 bytes from fra02s20-in-x12.1e100.net: icmp_seq=3 ttl=58 time=11.4 ms
64 bytes from fra02s20-in-x12.1e100.net: icmp_seq=4 ttl=58 time=11.4 ms
64 bytes from fra02s20-in-x12.1e100.net: icmp_seq=5 ttl=58 time=11.3 ms
--- ipv6.google.com ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4018ms
rtt min/avg/max/mdev = 11.349/11.411/11.456/0.127 ms