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121 lines
3.9 KiB
ReStructuredText
.. _l2tpv3-interface:
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L2TPv3
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------
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L2TPv3 is a pseudowire protocol, you can read more about on `Wikipedia L2TPv3`_
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or in :rfc:`3921`
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L2TPv3 can transport any traffic including ethernet frames. L2TPv2 is limited
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to PPP.
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Over IP
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^^^^^^^
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.. code-block:: console
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# show interfaces l2tpv3
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l2tpv3 l2tpeth10 {
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address 192.168.37.1/27
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encapsulation ip
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local-ip 192.0.2.1
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peer-session-id 100
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peer-tunnel-id 200
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remote-ip 203.0.113.24
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session-id 100
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tunnel-id 200
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}
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Inverse configuration has to be applied to the remote side.
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Over UDP
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^^^^^^^^
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UDP mode works better with NAT:
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* Set local-ip to your local IP (LAN).
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* Add a forwarding rule matching UDP port on your internet router.
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.. code-block:: console
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# show interfaces l2tpv3
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l2tpv3 l2tpeth10 {
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address 192.168.37.1/27
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destination-port 9001
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encapsulation udp
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local-ip 192.0.2.1
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peer-session-id 100
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peer-tunnel-id 200
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remote-ip 203.0.113.24
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session-id 100
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source-port 9000
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tunnel-id 200
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}
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To create more than one tunnel, use distinct UDP ports.
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Over IPSec, L2 VPN (bridge)
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^^^^^^^^^^^^^^^^^^^^^^^^^^^
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This is the LAN extension use case. The eth0 port of the distant VPN peers
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will be directly connected like if there was a switch between them.
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IPSec:
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.. code-block:: console
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set vpn ipsec ipsec-interfaces <VPN-interface>
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set vpn ipsec esp-group test-ESP-1 compression 'disable'
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set vpn ipsec esp-group test-ESP-1 lifetime '3600'
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set vpn ipsec esp-group test-ESP-1 mode 'transport'
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set vpn ipsec esp-group test-ESP-1 pfs 'enable'
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set vpn ipsec esp-group test-ESP-1 proposal 1 encryption 'aes128'
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set vpn ipsec esp-group test-ESP-1 proposal 1 hash 'sha1'
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set vpn ipsec ike-group test-IKE-1 ikev2-reauth 'no'
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set vpn ipsec ike-group test-IKE-1 key-exchange 'ikev1'
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set vpn ipsec ike-group test-IKE-1 lifetime '3600'
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set vpn ipsec ike-group test-IKE-1 proposal 1 dh-group '5'
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set vpn ipsec ike-group test-IKE-1 proposal 1 encryption 'aes128'
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set vpn ipsec ike-group test-IKE-1 proposal 1 hash 'sha1'
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set vpn ipsec site-to-site peer <peer-ip> authentication mode 'pre-shared-secret'
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set vpn ipsec site-to-site peer <peer-ip> authentication pre-shared-secret <pre-shared-key>
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set vpn ipsec site-to-site peer <peer-ip> connection-type 'initiate'
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set vpn ipsec site-to-site peer <peer-ip> ike-group 'test-IKE-1'
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set vpn ipsec site-to-site peer <peer-ip> ikev2-reauth 'inherit'
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set vpn ipsec site-to-site peer <peer-ip> local-address <local-ip>
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set vpn ipsec site-to-site peer <peer-ip> tunnel 1 allow-nat-networks 'disable'
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set vpn ipsec site-to-site peer <peer-ip> tunnel 1 allow-public-networks 'disable'
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set vpn ipsec site-to-site peer <peer-ip> tunnel 1 esp-group 'test-ESP-1'
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set vpn ipsec site-to-site peer <peer-ip> tunnel 1 protocol 'l2tp'
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Bridge:
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.. code-block:: console
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set interfaces bridge br0 description 'L2 VPN Bridge'
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# remote side in this example:
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# set interfaces bridge br0 address '172.16.30.18/30'
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set interfaces bridge br0 address '172.16.30.17/30'
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set interfaces bridge br0 member interface eth0
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set interfaces ethernet eth0 description 'L2 VPN Physical port'
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L2TPv3:
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.. code-block:: console
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set interfaces bridge br0 member interface 'l2tpeth0'
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set interfaces l2tpv3 l2tpeth0 description 'L2 VPN Tunnel'
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set interfaces l2tpv3 l2tpeth0 destination-port '5000'
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set interfaces l2tpv3 l2tpeth0 encapsulation 'ip'
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set interfaces l2tpv3 l2tpeth0 local-ip <local-ip>
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set interfaces l2tpv3 l2tpeth0 mtu '1500'
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set interfaces l2tpv3 l2tpeth0 peer-session-id '110'
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set interfaces l2tpv3 l2tpeth0 peer-tunnel-id '10'
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set interfaces l2tpv3 l2tpeth0 remote-ip <peer-ip>
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set interfaces l2tpv3 l2tpeth0 session-id '110'
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set interfaces l2tpv3 l2tpeth0 source-port '5000'
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set interfaces l2tpv3 l2tpeth0 tunnel-id '10'
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.. _`Wikipedia L2TPv3`: http://en.wikipedia.org/wiki/L2TPv3
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