Mikrotik: OpenVPN - Site to Site

Sumber: https://www.marthur.com/networking/mikrotik-setup-a-site-to-site-openvpn-connection/314/

MikroTik Identity  HQ
Client Name        Cabang
MikroTik Local IP  192.168.88.198
Private Key        123456789

MIKROTIK A (SERVER): CERTIFICATE SETUP & EXPORT

Setup Router Mikrotik Biasa

/ip dhcp-client print
/ip dhcp-client add interface=ether1 disable=no
/interface bridge
add name=bridge1
/interface bridge port
add bridge=bridge1 interface=ether2
add bridge=bridge1 interface=ether3
add bridge=bridge1 interface=ether4
add bridge=bridge1 interface=ether5
add bridge=bridge1 interface=ether6
add bridge=bridge1 interface=ether7
add bridge=bridge1 interface=ether8
/ip address add interface=bridge1 address=192.168.100.1/24
/ip route add gateway=bridge1
/ip dns set servers=1.1.1.1
/ip dns set allow-remote-request=yes
/ip firewall nat add chain=srcnat out-interface=ether1 action=masquerade
/ip firewall nat print

/ip dhcp-server setup

CREATE THE CERTIFICATES

/certificate add name=ca-template common-name=CA-HQ key-usage=key-cert-sign,crl-sign
/certificate add name=server-template common-name=SERVER
/certificate add name=client-Cabang-template common-name=client-Cabang

SIGN THE CERTIFICATES

SATU PER SATU Butuh waktu, jangan copy paste sekaligus.

/certificate sign ca-template ca-crl-host=192.168.3.73 name=CA-HQ     # 192.168.3.73 IP address "public" WAN Mikrotik
/certificate sign ca=CA-HQ server-template name=SERVER
/certificate sign ca=CA-HQ client-Cabang-template name=client-Cabang

ENABLE “TRUSTED” FOR THE CERTIFICATE AUTHORITY AND SERVER ONLY

/certificate set CA-HQ trusted=yes
/certificate set SERVER trusted=yes

EXPORT THE CERTIFICATES

/certificate export-certificate CA-HQ
/certificate export-certificate client-Cabang export-passphrase=123456789

Ambil file menggunakan FTP ke Mikrotik SERVER

cert_export_CA-HQ.crt
cert_export_client-Cabang.key
cert_export_client-Cabang.crt

MIKROTIK A (SERVER): OPENVPN PPP CONFIGURATION

IMPORT THE CERTIFICATES

/ppp profile add name=openvpn local-address=10.10.200.1 remote-address=10.10.200.2 change-tcp-mss=yes use-compression=no use-encryption=required

CREATE A PPP SECRET (MODIFY COMMAND AS NEEDED)

/ppp secret add name=Cabang password=123456789 profile=openvpn service=ovpn

CONFIGURE THE OVPN SERVER (MODIFY COMMAND AS NEEDED)

/interface ovpn-server server set certificate=SERVER cipher=blowfish128,aes128,aes192,aes256 default-profile=openvpn enabled=yes require-client-certificate=yes

CREATE A ROUTE (MODIFY COMMAND AS NEEDED)

/ip route add dst-address=192.168.200.0/24 gateway=10.10.200.2

MIKROTIK A (SERVER): OPENVPN FIREWALL/NAT CONFIGURATION

CREATE THE FIREWALL FILTER AND NAT BYPASS RULES (MODIFY COMMAND AS NEEDED):

/ip firewall filter add chain=input dst-port=1194 protocol=tcp
/ip firewall nat add chain=srcnat src-address=192.168.100.0/24 dst-address=192.168.200.0/24 place-before=0

Monitor

 /interface ovpn-server monitor 0

MIKROTIK B (CLIENT): CERTIFICATE SETUP & IMPORT

Setup Router Mikrotik Biasa

/ip dhcp-client print
/ip dhcp-client add interface=ether1 disable=no
/interface bridge
add name=bridge1
/interface bridge port
add bridge=bridge1 interface=ether2
add bridge=bridge1 interface=ether3
add bridge=bridge1 interface=ether4
add bridge=bridge1 interface=ether5
add bridge=bridge1 interface=ether6
add bridge=bridge1 interface=ether7
add bridge=bridge1 interface=ether8
/ip address add interface=bridge1 address=192.168.200.1/24
/ip route add gateway=bridge1
/ip dns set servers=1.1.1.1
/ip dns set allow-remote-request=yes
/ip firewall nat add chain=srcnat out-interface=ether1 action=masquerade
/ip firewall nat print

/ip dhcp-server setup

Download file menggunakan FTP

cert_export_CA-HQ.crt
cert_export_client-Cabang.key
cert_export_client-Cabang.crt

IMPORT THE CERTIFICATES

/certificate import file-name=cert_export_CA-HQ.crt passphrase=""
/certificate import file-name=cert_export_client-Cabang.crt passphrase=123456789
/certificate import file-name=cert_export_client-Cabang.key passphrase=123456789

MIKROTIK B (CLIENT): OPENVPN PPP CONFIGURATION

CREATE A OVPN CLIENT (MODIFY COMMAND AS NEEDED)

# /interface ovpn-client add certificate=cert_export_client-Cabang.crt_0 cipher=aes256 connect-to=71.157.75.49 mac-address=02:2F:03:6C:10:59 name=ovpn-Texas password=NyTx325 profile=default-encryption user=NewYork

/interface ovpn-client add certificate=cert_export_client-Cabang.crt_0 cipher=aes256 connect-to=10.10.200.1 name=ovpn-ke-HQ password=123456789 profile=default-encryption user=Cabang

CREATE A ROUTE (MODIFY COMMAND AS NEEDED)

/ip route add dst-address=192.168.100.0/24 gateway=10.10.200.1

MIKROTIK B (CLIENT): OPENVPN FIREWALL/NAT CONFIGURATION CREATE THE FIREWALL FILTER AND NAT BYPASS RULES (MODIFY COMMAND AS NEEDED):

# /ip firewall filter add chain=input dst-port=1194 protocol=tcp
# /ip firewall nat add chain=srcnat src-address=192.168.88.0/24 dst-address=192.168.100.0/24 place-before=0

Referensi

• https://www.marthur.com/networking/mikrotik-setup-a-site-to-site-openvpn-connection/314/