Difference between revisions of "IPv6: OpenVPN: Ubuntu roadwarrior"

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Aplikasi open source untuk mengimplementasi Virtual Private Network (VPN) yang cukup populer adalah OpenVPN. OpenVPN menggunakan protocol SSL / TLS untuk mempertukarkan kunci. Pada kesempatan ini akan di terangkan cara mengaktifkan OpenVPN untuk IPv6.
 
Aplikasi open source untuk mengimplementasi Virtual Private Network (VPN) yang cukup populer adalah OpenVPN. OpenVPN menggunakan protocol SSL / TLS untuk mempertukarkan kunci. Pada kesempatan ini akan di terangkan cara mengaktifkan OpenVPN untuk IPv6.
  
−
==Instal OpenVPN==
+
==Contoh Topology==
 +
 
 +
Jaringan dibuat di GNS3 menggunakan NAT (192.168.122.1), 2 Server 202.x.x.x satu berfungsi sebagai client, satu lagi berfungsi sebagai server.
 +
 
 +
 
 +
2222::/64 -- B Client 10.10.10.2 --  10.10.10.1 A Server  ---- NAT 192.168.122.1
 +
 
 +
==Konfigurasi Jaringan==
 +
 
 +
===Server A===
 +
 
 +
dhclient enp0s3
 +
ifconfig enp0s8 10.10.10.1 netmask 255.255.255.0
 +
ip addr add 2001::1/64 dev enp0s3
 +
 
 +
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
 +
echo 1 > /proc/sys/net/ipv6/conf/default/forwarding
 +
echo 1 > /proc/sys/net/ipv6/conf/enp0s3/forwarding
 +
echo 1 > /proc/sys/net/ipv6/conf/enp0s8/forwarding
 +
echo 1 > /proc/sys/net/ipv6/conf/tun0/forwarding
 +
 
 +
===Client B===
 +
 
 +
ifconfig enp0s3 10.10.10.2 netmask 255.255.255.0
 +
ip addr add 2222::1/64 dev enp0s8
 +
route add default gw 10.10.10.1
 +
 
 +
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
 +
echo 1 > /proc/sys/net/ipv6/conf/default/forwarding
 +
echo 1 > /proc/sys/net/ipv6/conf/enp0s3/forwarding
 +
echo 1 > /proc/sys/net/ipv6/conf/enp0s8/forwarding
 +
echo 1 > /proc/sys/net/ipv6/conf/tun0/forwarding
 +
 
 +
==Server: Instalasi OpenVPN==
  
 
Agar mudah kita menggunakan OpenVPN road warrior installer. Download dan jalankan script untuk instalasi menggunakan perintah
 
Agar mudah kita menggunakan OpenVPN road warrior installer. Download dan jalankan script untuk instalasi menggunakan perintah
Line 25: Line 58:
 
* Client name: coba1
 
* Client name: coba1
  
 +
Jika OpenVPN serve telah di konfigurasi dan siap pakai. Akan tampak di rules firewall di /etc/rc.local kira-kira
  
 +
$ cat /etc/rc.local
 +
# iptables -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
 +
# iptables -I FORWARD -s 10.8.0.0/24 -j ACCEPT
 +
# iptables -I INPUT -p udp --dport 1194 -j ACCEPT
 +
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 ! -d 10.8.0.0/24-j SNAT --to 10.10.10.1
  
 +
Jalankan OpenVPN, ketik
  
 +
sudo /etc/init.d/openvpn start
  
 +
Sertifikat client di simpan di home directory supaya mudah di ambil,
  
 +
mv /root/coba1.ovpn /home/onno/coba1.ovpn
 +
chmod -Rf 777 /home/onno/coba1.ovpn
 +
chown -Rf onno: /home/onno/coba1.ovpn
  
−
You need to define the external IP address on which you will run the service:
+
==AKtifkan IPv6==
  
−
a. External IP address on which you will run the service
+
Interface tun0 di server biasanya
−
b. Port No
 
−
c. DNS you want to use
 
  
−
This will create the necessary certificates and create the first client.
+
tun0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>  mtu 1500
 +
        inet 10.8.0.1  netmask 255.255.255.0  destination 10.8.0.1
 +
        inet6 fe80::4d06:4709:ba3f:7120  prefixlen 64  scopeid 0x20<link>
 +
        unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 100  (UNSPEC)
 +
        RX packets 0  bytes 0 (0.0 B)
 +
        RX errors 0  dropped 0  overruns 0  frame 0
 +
        TX packets 6  bytes 288 (288.0 B)
 +
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
  
−
That’s it. Your OpenVPN server has been configured and is ready to use. You can see the added firewall rules /etc/rc.local file:
+
Langkah selanjutnya adalah mengaktifkan IPv6.
  
−
$ cat /etc/rc.local
+
Misalnya,
−
iptables -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
 
−
iptables -I FORWARD -s 10.8.0.0/24 -j ACCEPT
 
−
iptables -I INPUT -p udp --dport 1194 -j ACCEPT
 
−
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -j SNAT --to 203.0.113.10
 
  
−
Type the following command to start the OpenVPN service:
+
* IPv6 Server : 2001::1/64
 +
* IPv6 Routed : 2222::/59 (ada 32 network /64)
  
−
$ sudo /etc/init.d/openvpn start
+
Edit server.conf
  
−
The client certificate will be stored in the home directory.
+
vi /etc/openvpn/server.conf
  
−
fakrul-apnic.ovpn
+
Tambahkan:
  
−
To connect from MacOSX, you can use TunnelBlick.
+
server-ipv6 2001::1/64
 +
tun-ipv6
 +
push tun-ipv6
 +
ifconfig-ipv6 2222::1 2222::2
 +
push "route-ipv6 2222::2/59"
 +
push "route-ipv6 2000::/3"
  
−
To add a new client, run the openvpn-install.sh script. Choose option 1 to add a new client and the certificate will be stored in the home folder.
+
Reload OpenVPN Service
  
−
B. Enable IPv6
+
sudo /etc/init.d/openvpn restart
  
−
Now let’s enable IPv6. For the configuration I am using IP 2001:db8:ee00:ee00::10/64 for the VPN server.
+
==Client==
  
−
2001:db8:ee00:abcd::/64 has been routed to the OpenVPN server host. That mean users connected via OpenVPN will get an address from 2001:db8:ee00:abcd::/64
+
Install openvpn
  
−
Step 1: We need to edit the OpenVPN configuration file and enable IPv6 tunnel service
+
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
 +
echo 1 > /proc/sys/net/ipv6/conf/default/forwarding
 +
echo 1 > /proc/sys/net/ipv6/conf/enp0s3/forwarding
 +
echo 1 > /proc/sys/net/ipv6/conf/enp0s8/forwarding
  
−
vi /etc/openvpn/server.conf
+
rm /var/lib/dpkg/lock
 +
apt update
 +
apt install openvpn
  
−
Add the following:
+
Download file .ovpn client. Coba sambungkan
  
−
server-ipv6 2001:0db8:ee00:abcd::/64
+
openvpn --config coba1.ovpn
−
tun-ipv6
 
−
push tun-ipv6
 
−
ifconfig-ipv6 2001:0db8:ee00:abcd::1 2001:0db8:ee00:abcd::2
 
−
push "route-ipv6 2001:0db8:ee00:ee00::2/64"
 
−
push "route-ipv6 2000::/3"
 
−
 
 
−
Step 2: Enable IPv6 forwarding:
 
−
 
 
−
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
 
−
 
 
−
Step 3: Reload OpenVPN Service
 
−
 
 
−
sudo /etc/init.d/openvpn restart
 
−
 
 
−
Try to connect your OpenVPN client.
 
−
 
 
−
From the Tunnelblick log you can verify the IP addresses:
 
  
 
Test the IPv6 reachability by accessing http://test-ipv6.com/
 
Test the IPv6 reachability by accessing http://test-ipv6.com/
−
 
−
Note:
 
−
1. To make IPv6 forwarding persistent, remember to uncomment in /etc/sysctl.conf:
 
−
 
−
net.ipv6.conf.all.forwarding = 1
 
−
 
−
2. Make sure that you route 2001:db8:ee00:abcd::/64 to your OpenVPN Server. I have done this from my Cisco router:
 
−
 
−
ipv6 route 2001:db8:ee00:abcd::/64 2001:db8:ee00:ee00::10
 
−
 
−
So you now have native IPv6 and can access all IPv6-enabled services. As a roaming user, it will give you better security.
 
  
 
==Referensi==
 
==Referensi==
Line 109: Line 138:
 
==Pranala Menarik==
 
==Pranala Menarik==
  
−
* [[OpenVPN]]
+
* [[OpenVPN: IPv4 /32 single client]]
−
* [[IPv6]]
+
* [[OpenVPN: IPv4 /32 multi-client]]
 +
* [[OpenVPN: IPv4 routed LAN]]
 +
* [[OpenVPN: IPv4 routed 2 LAN]]
 +
* [[OpenVPN: IPv6 /128 single client]]
 +
* [[OpenVPN: IPv6 routed LAN]]
 +
* [[OpenVPN: IPv6 routed 2 LAN]]
 +
 
 +
* [[IPv6: OpenVPN: Ubuntu roadwarrior]]
 +
* [[OpenVPN: Simple Server using Script]]
 +
* [[OpenVPN: Free VPN untuk Ubuntu]]
 +
* [[Instalasi OpenVPN]]
 +
* [[Instalasi OpenVPN Client di Linux]]
 +
* [[Capture Screen Proses Instalasi OpenVPN di Windows]]
 +
* [[Instalasi OpenVPN di Windows]]
 +
* [[WNDW: OpenVPN]]
 +
* [[OpenVPN: Instalasi di Ubuntu 16.04]]
 +
* [[OpenVPN: Instalasi di Ubuntu 18.04]]
 +
* [[OpenVPN: Briding dan Routing]]

Latest revision as of 08:19, 31 March 2020

sumber: https://blog.apnic.net/2017/06/09/using-openvpn-ipv6/


Aplikasi open source untuk mengimplementasi Virtual Private Network (VPN) yang cukup populer adalah OpenVPN. OpenVPN menggunakan protocol SSL / TLS untuk mempertukarkan kunci. Pada kesempatan ini akan di terangkan cara mengaktifkan OpenVPN untuk IPv6.

Contoh Topology

Jaringan dibuat di GNS3 menggunakan NAT (192.168.122.1), 2 Server 202.x.x.x satu berfungsi sebagai client, satu lagi berfungsi sebagai server. 


2222::/64 -- B Client 10.10.10.2 --  10.10.10.1 A Server  ---- NAT 192.168.122.1

Konfigurasi Jaringan

Server A

dhclient enp0s3
ifconfig enp0s8 10.10.10.1 netmask 255.255.255.0
ip addr add 2001::1/64 dev enp0s3

echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
echo 1 > /proc/sys/net/ipv6/conf/default/forwarding
echo 1 > /proc/sys/net/ipv6/conf/enp0s3/forwarding
echo 1 > /proc/sys/net/ipv6/conf/enp0s8/forwarding
echo 1 > /proc/sys/net/ipv6/conf/tun0/forwarding

Client B

ifconfig enp0s3 10.10.10.2 netmask 255.255.255.0
ip addr add 2222::1/64 dev enp0s8
route add default gw 10.10.10.1

echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
echo 1 > /proc/sys/net/ipv6/conf/default/forwarding
echo 1 > /proc/sys/net/ipv6/conf/enp0s3/forwarding
echo 1 > /proc/sys/net/ipv6/conf/enp0s8/forwarding
echo 1 > /proc/sys/net/ipv6/conf/tun0/forwarding

Server: Instalasi OpenVPN

Agar mudah kita menggunakan OpenVPN road warrior installer. Download dan jalankan script untuk instalasi menggunakan perintah 

sudo su
rm /var/lib/dpkg/lock
apt update

cd /usr/local/src
wget https://git.io/vpn -O openvpn-install.sh
sudo bash openvpn-install.sh

Beberapa informasi yang dibutuhkan

  • IP address OpenVPN:
  • Public IP address / hostname:
  • Protocol UDP / TCP
  • Port: 1194 (UDP)
  • DNS: Google
  • Client name: coba1

Jika OpenVPN serve telah di konfigurasi dan siap pakai. Akan tampak di rules firewall di /etc/rc.local kira-kira 

$ cat /etc/rc.local
# iptables -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
# iptables -I FORWARD -s 10.8.0.0/24 -j ACCEPT
# iptables -I INPUT -p udp --dport 1194 -j ACCEPT
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 ! -d 10.8.0.0/24-j SNAT --to 10.10.10.1

Jalankan OpenVPN, ketik 

sudo /etc/init.d/openvpn start

Sertifikat client di simpan di home directory supaya mudah di ambil, 

mv /root/coba1.ovpn /home/onno/coba1.ovpn
chmod -Rf 777 /home/onno/coba1.ovpn
chown -Rf onno: /home/onno/coba1.ovpn

AKtifkan IPv6

Interface tun0 di server biasanya 

tun0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>  mtu 1500
        inet 10.8.0.1  netmask 255.255.255.0  destination 10.8.0.1
        inet6 fe80::4d06:4709:ba3f:7120  prefixlen 64  scopeid 0x20<link>
        unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 100  (UNSPEC)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6  bytes 288 (288.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Langkah selanjutnya adalah mengaktifkan IPv6.

Misalnya,

  • IPv6 Server : 2001::1/64
  • IPv6 Routed : 2222::/59 (ada 32 network /64)

Edit server.conf 

vi /etc/openvpn/server.conf

Tambahkan: 

server-ipv6 2001::1/64
tun-ipv6
push tun-ipv6
ifconfig-ipv6 2222::1 2222::2
push "route-ipv6 2222::2/59"
push "route-ipv6 2000::/3"

Reload OpenVPN Service 

sudo /etc/init.d/openvpn restart

Client

Install openvpn 

echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
echo 1 > /proc/sys/net/ipv6/conf/default/forwarding
echo 1 > /proc/sys/net/ipv6/conf/enp0s3/forwarding
echo 1 > /proc/sys/net/ipv6/conf/enp0s8/forwarding

rm /var/lib/dpkg/lock
apt update
apt install openvpn

Download file .ovpn client. Coba sambungkan 

openvpn --config coba1.ovpn

Test the IPv6 reachability by accessing http://test-ipv6.com/

Referensi

Pranala Menarik

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