Difference between revisions of "OpenVPN: IPv6 /128 single client"

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Line 5: Line 5:
  
  
−
  CLIENT 1 ------- HOST A ---------------- HOST B --------- CLIENT 2
+
  CLIENT 1 ------- HOST A ---------------- HOST B
 
                   ovpn server            ovpn client
 
                   ovpn server            ovpn client
 
                   2345::1/64
 
                   2345::1/64
Line 22: Line 22:
 
  OS : Ubuntu 18.04
 
  OS : Ubuntu 18.04
  
−
 
−
 
−
==Instal & Konfigurasi OpenVPN Server==
 
−
 
−
Download script openvpn-install dari github
 
−
 
−
sudo su
 
−
apt install openssh-server openvpn
 
−
 
−
cd /usr/local/src
 
−
wget https://git.io/vpn -O openvpn-install.sh
 
−
bash openvpn-install.sh
 
−
 
−
Jawab pertanyaan:
 
−
 
−
IP address: 192.168.0.239
 
−
Public IP address / hostname: vpnserver
 
−
Protocol [1-2]: 1 -- UDP
 
−
Port: 1194
 
−
DNS [1-5]: 1
 
−
Client name: client
 
−
Press any key to continue...  <ENTER>
 
−
 
−
Maka akan tampak file client.ovpn, di
 
−
 
−
/root/client.ovpn
 
−
 
−
Install openssh-server di client, copykan client.ovpn ke client
 
−
 
−
scp client.ovpn root@192.168.0.237:
 
−
 
−
 
−
Reboot
 
−
 
−
shutdown -r now
 
−
 
−
Cek kondisi jaringan
 
−
 
−
ifconfig
 
−
 
−
Akan muncul interface tun0
 
−
 
−
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::eaaa:77ed:ba02:748  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
 
−
 
−
==Konfigurasi IPv6 Server==
 
−
 
−
Enable IPv6 forwarding
 
−
 
−
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
 
−
 
−
Edit /etc/openvpn/server.conf
 
−
 
−
vi /etc/openvpn/server.conf
 
−
 
−
Tambahkan
 
−
 
−
tun-ipv6
 
−
server-ipv6 2345::/64
 
−
 
−
Edit /etc/openvpn/client/client (misalnya username client adalah "client")
 
−
 
−
push tun-ipv6
 
−
ifconfig-ipv6 2345::1 2345::2
 
−
push "ifconfig-ipv6 2345::2 2345::1"
 
−
push "route-ipv6 2000::/3"
 
−
 
−
Restart
 
−
 
−
/etc/init.d/openvpn restart
 
  
 
==Konfigurasi OpenVPN Client==
 
==Konfigurasi OpenVPN Client==
Line 125: Line 45:
 
  ..
 
  ..
 
  ..
 
  ..
−
  Sat Feb 16 08:24:44 2019 Unrecognized option or missing or extra parameter(s) in client.ovpn:14: block-
+
  Sun Mar 10 18:58:24 2019 Data Channel: using negotiated cipher 'AES-256-GCM'
−
  Sat Feb 16 08:24:45 2019 do_ifconfig, tt->did_ifconfig_ipv6_setup=0
+
Sun Mar 10 18:58:24 2019 Outgoing Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key
−
  Sat Feb 16 08:24:45 2019 /sbin/ip link set dev tun0 up mtu 1500
+
Sun Mar 10 18:58:24 2019 Incoming Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key
−
  Sat Feb 16 08:24:45 2019 /sbin/ip addr add dev tun0 10.8.0.2/24 broadcast 10.8.0.255
+
  Sun Mar 10 18:58:24 2019 ROUTE_GATEWAY 192.168.0.222/255.255.255.0 IFACE=enp0s3 HWADDR=08:00:27:3f:39:70
−
  Sat Feb 16 08:24:45 2019 /sbin/ip route add 192.168.0.239/32 dev enp0s3
+
Sun Mar 10 18:58:24 2019 GDG6: remote_host_ipv6=n/a
−
  Sat Feb 16 08:24:45 2019 /sbin/ip route add 0.0.0.0/1 via 10.8.0.1
+
Sun Mar 10 18:58:24 2019 ROUTE6: default_gateway=UNDEF
−
  Sat Feb 16 08:24:45 2019 /sbin/ip route add 128.0.0.0/1 via 10.8.0.1
+
Sun Mar 10 18:58:24 2019 TUN/TAP device tun0 opened
−
  Sat Feb 16 08:24:45 2019 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this
+
Sun Mar 10 18:58:24 2019 TUN/TAP TX queue length set to 100
−
  Sat Feb 16 08:24:45 2019 Initialization Sequence Completed  
+
Sun Mar 10 18:58:24 2019 do_ifconfig, tt->did_ifconfig_ipv6_setup=1
 +
  Sun Mar 10 18:58:24 2019 /sbin/ip link set dev tun0 up mtu 1500
 +
  Sun Mar 10 18:58:24 2019 /sbin/ip addr add dev tun0 10.8.0.2/24 broadcast 10.8.0.255
 +
  Sun Mar 10 18:58:24 2019 /sbin/ip -6 addr add 2345::1000/64 dev tun0
 +
Sun Mar 10 18:58:24 2019 /sbin/ip route add 192.168.0.105/32 dev enp0s3
 +
  Sun Mar 10 18:58:24 2019 /sbin/ip route add 0.0.0.0/1 via 10.8.0.1
 +
  Sun Mar 10 18:58:24 2019 /sbin/ip route add 128.0.0.0/1 via 10.8.0.1
 +
  Sun Mar 10 18:58:24 2019 add_route_ipv6(2000::/3 -> 2345::1 metric -1) dev tun0
 +
Sun Mar 10 18:58:24 2019 /sbin/ip -6 route add 2000::/3 dev tun0
 +
Sun Mar 10 18:58:24 2019 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this
 +
  Sun Mar 10 18:58:24 2019 Initialization Sequence Completed
  
−
Cek interface, akan muncul tun0 yang ada IPv6-nya
+
Perhatikan di bagian agak bawah terlihat ada beberapa setup IPv6. Selanjutnya cek Interface, akan muncul tun0 yang ada IPv6-nya
  
 
  ifconfig
 
  ifconfig
  
 
  tun0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>  mtu 1500
 
  tun0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>  mtu 1500
−
         inet 10.8.0.3 netmask 255.255.255.0  destination 10.8.0.3
+
         inet 10.8.0.2 netmask 255.255.255.0  destination 10.8.0.2
−
         inet6 2001:db8:0:123::1001 prefixlen 64  scopeid 0x0<global>
+
         inet6 fe80::8872:a14c:5076:40b5 prefixlen 64  scopeid 0x20<link>
−
         inet6 fe80::36a5:3f7a:13b1:a4d5 prefixlen 64  scopeid 0x20<link>
+
         inet6 2345::1000 prefixlen 64  scopeid 0x0<global>
 
         unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 100  (UNSPEC)
 
         unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 100  (UNSPEC)
−
         RX packets 3861 bytes 4970868 (4.9 MB)
+
         RX packets 4837 bytes 5672472 (5.6 MB)
 
         RX errors 0  dropped 0  overruns 0  frame 0
 
         RX errors 0  dropped 0  overruns 0  frame 0
−
         TX packets 2835 bytes 215402 (215.4 KB)
+
         TX packets 3898 bytes 324037 (324.0 KB)
−
         TX errors 0  dropped 543 overruns 0  carrier 0  collisions 0
+
         TX errors 0  dropped 106 overruns 0  carrier 0  collisions 0
  
−
Cek tabel routing, jika bermasalah perbaiki, misalnya,
+
Perhatikan IPv4 address keluarga 10.8.0.0/16 dan ada IPv6 address sesuai dengan settingan yang ada di OpenVPN Server. Selanjutnya cek sambungan menggunakan IPv6,
  
−
  ip route show
+
  ping -I tun0 2345::1
−
ip route del ::/0
 
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ip route del ::/0
 
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ip route del ::/0
 
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ip route add ::/0 dev tun0
 
−
 
 
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Cek sambungan
 
−
 
 
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ping -c3 10.8.0.1
 
  
 
Sample output:
 
Sample output:
  
−
  PING 10.8.0.1 (10.8.0.1) 56(84) bytes of data.
+
  PING 2345::1(2345::1) from 2345::1000 tun0: 56 data bytes
−
  64 bytes from 10.8.0.1: icmp_seq=1 ttl=64 time=0.539 ms
+
  64 bytes from 2345::1: icmp_seq=1 ttl=64 time=0.610 ms
−
  64 bytes from 10.8.0.1: icmp_seq=2 ttl=64 time=1.17 ms
+
64 bytes from 2345::1: icmp_seq=2 ttl=64 time=0.692 ms
−
  64 bytes from 10.8.0.1: icmp_seq=3 ttl=64 time=0.921 ms
+
  64 bytes from 2345::1: icmp_seq=3 ttl=64 time=0.582 ms
−
   
+
64 bytes from 2345::1: icmp_seq=4 ttl=64 time=0.603 ms
−
  --- 10.8.0.1 ping statistics ---
+
  64 bytes from 2345::1: icmp_seq=5 ttl=64 time=0.625 ms
−
  3 packets transmitted, 3 received, 0% packet loss, time 2007ms
+
64 bytes from 2345::1: icmp_seq=6 ttl=64 time=0.625 ms
−
  rtt min/avg/max/mdev = 0.539/0.878/1.176/0.264 ms
+
  ^C
 +
  --- 2345::1 ping statistics ---
 +
  6 packets transmitted, 6 received, 0% packet loss, time 5110ms
 +
  rtt min/avg/max/mdev = 0.582/0.622/0.692/0.046 ms
  
 
Cek routing
 
Cek routing
  
−
  route -n
+
  ip -6 route show
−
 
 
−
Sample output
 
−
 
 
−
Kernel IP routing table
 
−
Destination    Gateway        Genmask        Flags Metric Ref    Use Iface
 
−
0.0.0.0        10.8.0.1        128.0.0.0      UG    0      0        0 tun0
 
  
 +
Pastikan ada routing ke IPv6 address
  
−
Anda sudah tersambung ke VPN dengan IP 10.8.0.0/24
+
2345::/64 dev enp0s3 proto kernel metric 100 pref medium
 +
2345::/64 dev tun0 proto kernel metric 256 pref medium
 +
2000::/3 dev tun0 metric 1024 pref medium
 +
fe80::/64 dev enp0s3 proto kernel metric 256 pref medium
 +
fe80::/64 dev tun0 proto kernel metric 256 pref medium
  
 
==Referensi==
 
==Referensi==
Line 191: Line 115:
 
==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 08:18, 31 March 2020

sumber: https://www.ostechnix.com/easiest-way-install-configure-openvpn-server-linux/


Topology

CLIENT 1 ------- HOST A ---------------- HOST B
                 ovpn server             ovpn client
                 2345::1/64


Host A akan berfungsi sebagai OpenVPN Server. 

OS : Ubuntu 18.04
IP : 192.168.0.239/24   (IP public)
hostname : vpnserver


Host B akan berfungsi sebagai OpenVPN client 

OS : Ubuntu 18.04


Konfigurasi OpenVPN Client

Pastikan openvpn terinstalsi 

sudo su
apt install openssh-server openvpn

Edit /etc/hosts isi dengan nama OpenVPN server 

192.168.0.239 vpnserver


Jalankan OpenVPN client 

cd ~
sudo su
openvpn --config client.ovpn

Akan keluar kira-kira 

..
..
Sun Mar 10 18:58:24 2019 Data Channel: using negotiated cipher 'AES-256-GCM'
Sun Mar 10 18:58:24 2019 Outgoing Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key
Sun Mar 10 18:58:24 2019 Incoming Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key
Sun Mar 10 18:58:24 2019 ROUTE_GATEWAY 192.168.0.222/255.255.255.0 IFACE=enp0s3 HWADDR=08:00:27:3f:39:70
Sun Mar 10 18:58:24 2019 GDG6: remote_host_ipv6=n/a
Sun Mar 10 18:58:24 2019 ROUTE6: default_gateway=UNDEF
Sun Mar 10 18:58:24 2019 TUN/TAP device tun0 opened
Sun Mar 10 18:58:24 2019 TUN/TAP TX queue length set to 100
Sun Mar 10 18:58:24 2019 do_ifconfig, tt->did_ifconfig_ipv6_setup=1
Sun Mar 10 18:58:24 2019 /sbin/ip link set dev tun0 up mtu 1500
Sun Mar 10 18:58:24 2019 /sbin/ip addr add dev tun0 10.8.0.2/24 broadcast 10.8.0.255
Sun Mar 10 18:58:24 2019 /sbin/ip -6 addr add 2345::1000/64 dev tun0
Sun Mar 10 18:58:24 2019 /sbin/ip route add 192.168.0.105/32 dev enp0s3
Sun Mar 10 18:58:24 2019 /sbin/ip route add 0.0.0.0/1 via 10.8.0.1
Sun Mar 10 18:58:24 2019 /sbin/ip route add 128.0.0.0/1 via 10.8.0.1
Sun Mar 10 18:58:24 2019 add_route_ipv6(2000::/3 -> 2345::1 metric -1) dev tun0
Sun Mar 10 18:58:24 2019 /sbin/ip -6 route add 2000::/3 dev tun0
Sun Mar 10 18:58:24 2019 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this
Sun Mar 10 18:58:24 2019 Initialization Sequence Completed

Perhatikan di bagian agak bawah terlihat ada beberapa setup IPv6. Selanjutnya cek Interface, akan muncul tun0 yang ada IPv6-nya 

ifconfig

tun0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>  mtu 1500
        inet 10.8.0.2  netmask 255.255.255.0  destination 10.8.0.2
        inet6 fe80::8872:a14c:5076:40b5  prefixlen 64  scopeid 0x20<link>
        inet6 2345::1000  prefixlen 64  scopeid 0x0<global>
        unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 100  (UNSPEC)
        RX packets 4837  bytes 5672472 (5.6 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3898  bytes 324037 (324.0 KB)
        TX errors 0  dropped 106 overruns 0  carrier 0  collisions 0

Perhatikan IPv4 address keluarga 10.8.0.0/16 dan ada IPv6 address sesuai dengan settingan yang ada di OpenVPN Server. Selanjutnya cek sambungan menggunakan IPv6, 

ping -I tun0 2345::1

Sample output: 

PING 2345::1(2345::1) from 2345::1000 tun0: 56 data bytes
64 bytes from 2345::1: icmp_seq=1 ttl=64 time=0.610 ms
64 bytes from 2345::1: icmp_seq=2 ttl=64 time=0.692 ms
64 bytes from 2345::1: icmp_seq=3 ttl=64 time=0.582 ms
64 bytes from 2345::1: icmp_seq=4 ttl=64 time=0.603 ms
64 bytes from 2345::1: icmp_seq=5 ttl=64 time=0.625 ms
64 bytes from 2345::1: icmp_seq=6 ttl=64 time=0.625 ms
^C
--- 2345::1 ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5110ms
rtt min/avg/max/mdev = 0.582/0.622/0.692/0.046 ms

Cek routing 

ip -6 route show

Pastikan ada routing ke IPv6 address 

2345::/64 dev enp0s3 proto kernel metric 100 pref medium
2345::/64 dev tun0 proto kernel metric 256 pref medium
2000::/3 dev tun0 metric 1024 pref medium
fe80::/64 dev enp0s3 proto kernel metric 256 pref medium
fe80::/64 dev tun0 proto kernel metric 256 pref medium

Referensi

Pranala Menarik

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