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.. _size2site_ipsec:
Site-to-Site
------------
IKEv1
^^^^^
Example:
* WAN interface on `eth1`
* left subnet: `192.168.0.0/24` site1, server side (i.e. locality, actually
there is no client or server roles)
* left local_ip: `1.1.1.1` # server side WAN IP
* right subnet: `10.0.0.0/24` site2,remote office side
* right local_ip: `2.2.2.2` # remote office side WAN IP
.. code-block:: sh
# server config
set vpn ipsec esp-group office-srv-esp compression 'disable'
set vpn ipsec esp-group office-srv-esp lifetime '1800'
set vpn ipsec esp-group office-srv-esp mode 'tunnel'
set vpn ipsec esp-group office-srv-esp pfs 'enable'
set vpn ipsec esp-group office-srv-esp proposal 1 encryption 'aes256'
set vpn ipsec esp-group office-srv-esp proposal 1 hash 'sha1'
set vpn ipsec ike-group office-srv-ike ikev2-reauth 'no'
set vpn ipsec ike-group office-srv-ike key-exchange 'ikev1'
set vpn ipsec ike-group office-srv-ike lifetime '3600'
set vpn ipsec ike-group office-srv-ike proposal 1 encryption 'aes256'
set vpn ipsec ike-group office-srv-ike proposal 1 hash 'sha1'
set vpn ipsec ipsec-interfaces interface 'eth1'
set vpn ipsec site-to-site peer 2.2.2.2 authentication mode 'pre-shared-secret'
set vpn ipsec site-to-site peer 2.2.2.2 authentication pre-shared-secret 'SomePreSharedKey'
set vpn ipsec site-to-site peer 2.2.2.2 ike-group 'office-srv-ike'
set vpn ipsec site-to-site peer 2.2.2.2 local-address '1.1.1.1'
set vpn ipsec site-to-site peer 2.2.2.2 tunnel 0 allow-nat-networks 'disable'
set vpn ipsec site-to-site peer 2.2.2.2 tunnel 0 allow-public-networks 'disable'
set vpn ipsec site-to-site peer 2.2.2.2 tunnel 0 esp-group 'office-srv-esp'
set vpn ipsec site-to-site peer 2.2.2.2 tunnel 0 local prefix '192.168.0.0/24'
set vpn ipsec site-to-site peer 2.2.2.2 tunnel 0 remote prefix '10.0.0.0/21'
# remote office config
set vpn ipsec esp-group office-srv-esp compression 'disable'
set vpn ipsec esp-group office-srv-esp lifetime '1800'
set vpn ipsec esp-group office-srv-esp mode 'tunnel'
set vpn ipsec esp-group office-srv-esp pfs 'enable'
set vpn ipsec esp-group office-srv-esp proposal 1 encryption 'aes256'
set vpn ipsec esp-group office-srv-esp proposal 1 hash 'sha1'
set vpn ipsec ike-group office-srv-ike ikev2-reauth 'no'
set vpn ipsec ike-group office-srv-ike key-exchange 'ikev1'
set vpn ipsec ike-group office-srv-ike lifetime '3600'
set vpn ipsec ike-group office-srv-ike proposal 1 encryption 'aes256'
set vpn ipsec ike-group office-srv-ike proposal 1 hash 'sha1'
set vpn ipsec ipsec-interfaces interface 'eth1'
set vpn ipsec site-to-site peer 1.1.1.1 authentication mode 'pre-shared-secret'
set vpn ipsec site-to-site peer 1.1.1.1 authentication pre-shared-secret 'SomePreSharedKey'
set vpn ipsec site-to-site peer 1.1.1.1 ike-group 'office-srv-ike'
set vpn ipsec site-to-site peer 1.1.1.1 local-address '2.2.2.2'
set vpn ipsec site-to-site peer 1.1.1.1 tunnel 0 allow-nat-networks 'disable'
set vpn ipsec site-to-site peer 1.1.1.1 tunnel 0 allow-public-networks 'disable'
set vpn ipsec site-to-site peer 1.1.1.1 tunnel 0 esp-group 'office-srv-esp'
set vpn ipsec site-to-site peer 1.1.1.1 tunnel 0 local prefix '10.0.0.0/21'
set vpn ipsec site-to-site peer 1.1.1.1 tunnel 0 remote prefix '192.168.0.0/24'
Show status of new setup:
.. code-block:: sh
vyos@srv-gw0:~$ show vpn ike sa
Peer ID / IP Local ID / IP
------------ -------------
2.2.2.2 1.1.1.1
State Encrypt Hash D-H Grp NAT-T A-Time L-Time
----- ------- ---- ------- ----- ------ ------
up aes256 sha1 5 no 734 3600
vyos@srv-gw0:~$ show vpn ipsec sa
Peer ID / IP Local ID / IP
------------ -------------
2.2.2.2 1.1.1.1
Tunnel State Bytes Out/In Encrypt Hash NAT-T A-Time L-Time Proto
------ ----- ------------- ------- ---- ----- ------ ------ -----
0 up 7.5M/230.6K aes256 sha1 no 567 1800 all
If there is SNAT rules on eth1, need to add exclude rule
.. code-block:: sh
# server side
set nat source rule 10 destination address '10.0.0.0/24'
set nat source rule 10 'exclude'
set nat source rule 10 outbound-interface 'eth1'
set nat source rule 10 source address '192.168.0.0/24'
# remote office side
set nat source rule 10 destination address '192.168.0.0/24'
set nat source rule 10 'exclude'
set nat source rule 10 outbound-interface 'eth1'
set nat source rule 10 source address '10.0.0.0/24'
To allow traffic to pass through to clients, you need to add the following
rules. (if you used the default configuration at the top of this page)
.. code-block:: sh
# server side
set firewall name OUTSIDE-LOCAL rule 32 action 'accept'
set firewall name OUTSIDE-LOCAL rule 32 source address '10.0.0.0/24'
# remote office side
set firewall name OUTSIDE-LOCAL rule 32 action 'accept'
set firewall name OUTSIDE-LOCAL rule 32 source address '192.168.0.0/24'
IKEv2
^^^^^
.. note:: This is just a preliminary config which should be extended!
.. code-block:: sh
set interfaces vti vti10 address '10.0.0.1/30'
set vpn ipsec esp-group ESP_DEFAULT compression 'disable'
set vpn ipsec esp-group ESP_DEFAULT lifetime '3600'
set vpn ipsec esp-group ESP_DEFAULT mode 'tunnel'
set vpn ipsec esp-group ESP_DEFAULT pfs 'dh-group19'
set vpn ipsec esp-group ESP_DEFAULT proposal 10 encryption 'aes256gcm128'
set vpn ipsec esp-group ESP_DEFAULT proposal 10 hash 'sha256'
set vpn ipsec ike-group IKEv2_DEFAULT dead-peer-detection action 'hold'
set vpn ipsec ike-group IKEv2_DEFAULT dead-peer-detection interval '30'
set vpn ipsec ike-group IKEv2_DEFAULT dead-peer-detection timeout '120'
set vpn ipsec ike-group IKEv2_DEFAULT ikev2-reauth 'no'
set vpn ipsec ike-group IKEv2_DEFAULT key-exchange 'ikev2'
set vpn ipsec ike-group IKEv2_DEFAULT lifetime '10800'
set vpn ipsec ike-group IKEv2_DEFAULT mobike 'disable'
set vpn ipsec ike-group IKEv2_DEFAULT proposal 10 dh-group '19'
set vpn ipsec ike-group IKEv2_DEFAULT proposal 10 encryption 'aes256gcm128'
set vpn ipsec ike-group IKEv2_DEFAULT proposal 10 hash 'sha256'
set vpn ipsec site-to-site peer 2.2.2.2 authentication id '1.1.1.1'
set vpn ipsec site-to-site peer 2.2.2.2 authentication mode 'pre-shared-secret'
set vpn ipsec site-to-site peer 2.2.2.2 authentication pre-shared-secret 'secretkey'
set vpn ipsec site-to-site peer 2.2.2.2 authentication remote-id '2.2.2.2'
set vpn ipsec site-to-site peer 2.2.2.2 connection-type 'initiate'
set vpn ipsec site-to-site peer 2.2.2.2 ike-group 'IKEv2_DEFAULT'
set vpn ipsec site-to-site peer 2.2.2.2 ikev2-reauth 'inherit'
set vpn ipsec site-to-site peer 2.2.2.2 local-address '1.1.1.1'
set vpn ipsec site-to-site peer 2.2.2.2 vti bind 'vti10'
set vpn ipsec site-to-site peer 2.2.2.2 vti esp-group 'ESP_DEFAULT'
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