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authorusman-umer <unumer@hotmail.com>2021-07-10 23:42:23 +0100
committerusman-umer <unumer@hotmail.com>2021-07-10 23:42:23 +0100
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parent4594823ebdcb12976395df72393ba900154e243b (diff)
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Moved wireguard from the interfaces to vpn directory, as it is a VPN.
Modified the index files to reflect this. Added Diagram of the VPN Topology Modified the weird IP subnets for local& remote sites. This Included: Changing the Interface Address for the wg01 tunnel Chaning the WAN addresses to addrs not in the RFC1918 range (1.1.1.1 & 2.2.2.2) Modifing the allowed IPs and static route to reflect this. Modified the ping test to reflect this. Added an annotated verison of the wireguard local&remote config. Added an example of a firewall exception for wirguard (OUTSIDE_IN) Modified the explanation for the behavior of AllowedIPs for remote clients. Added an example of "sudo wg" to the operational commands. Fixed typo
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-.. _wireguard:
-
-.. include:: /_include/need_improvement.txt
-
-#########
-WireGuard
-#########
-
-WireGuard is an extremely simple yet fast and modern VPN that utilizes
-state-of-the-art cryptography. See https://www.wireguard.com for more
-information.
-
-*************
-Configuration
-*************
-
-WireGuard requires the generation of a keypair, which includes a private
-key to decrypt incoming traffic, and a public key for peer(s) to encrypt
-traffic.
-
-Generate Keypair
-================
-
-.. opcmd:: generate wireguard default-keypair
-
- It generates the keypair, which includes the public and private parts,
- and stores it within VyOS. It will be used per default on any configured
- WireGuard interface, even if multiple interfaces are being configured.
-
-.. opcmd:: show wireguard keypairs pubkey default
-
- It shows the public key to be shared with your peer(s). Your peer will
- encrypt all traffic to your system using this public key.
-
- .. code-block:: none
-
- vyos@vyos:~$ show wireguard keypairs pubkey default
- hW17UxY7zeydJNPIyo3UtGnBHkzTK/NeBOrDSIU9Tx0=
-
-
-Generate Named Keypair
-======================
-
-Named keypairs can be used on a interface basis when configured. If
-multiple WireGuard interfaces are being configured, each can have their
-own keypairs.
-
-.. opcmd:: generate wireguard named-keypairs <name>
-
- The commands below generates 2 keypairs unrelated to each other.
-
- .. code-block:: none
-
- vyos@vyos:~$ generate wireguard named-keypairs KP01
- vyos@vyos:~$ generate wireguard named-keypairs KP02
-
-
-Interface configuration
-=======================
-
-The next step is to configure your local side as well as the policy
-based trusted destination addresses. If you only initiate a connection,
-the listen port and address/port is optional; however, if you act as a
-server and endpoints initiate the connections to your system, you need to
-define a port your clients can connect to, otherwise the port is randomly
-chosen and may make connection difficult with firewall rules, since the port
-may be different each time the system is rebooted.
-
-You will also need the public key of your peer as well as the network(s)
-you want to tunnel (allowed-ips) to configure a WireGuard tunnel. The
-public key below is always the public key from your peer, not your local
-one.
-
-**local side**
-
-.. code-block:: none
-
- set interfaces wireguard wg01 address '10.1.0.1/24'
- set interfaces wireguard wg01 description 'VPN-to-wg02'
- set interfaces wireguard wg01 peer to-wg02 allowed-ips '10.2.0.0/24'
- set interfaces wireguard wg01 peer to-wg02 address '192.168.0.142'
- set interfaces wireguard wg01 peer to-wg02 port '12345'
- set interfaces wireguard wg01 peer to-wg02 pubkey 'XMrlPykaxhdAAiSjhtPlvi30NVkvLQliQuKP7AI7CyI='
- set interfaces wireguard wg01 port '12345'
- set protocols static route 10.2.0.0/24 interface wg01
-
-The last step is to define an interface route for 10.2.0.0/24 to get
-through the WireGuard interface `wg01`. Multiple IPs or networks can be
-defined and routed. The last check is allowed-ips which either prevents
-or allows the traffic.
-
-.. note:: You can not assign the same allowed-ips statement to multiple
- WireGuard peers. This a a design decission. For more information please
- check the `WireGuard mailing list`_.
-
-.. cfgcmd:: set interfaces wireguard <interface> private-key <name>
-
- To use a named key on an interface, the option private-key needs to be
- set.
-
- .. code-block:: none
-
- set interfaces wireguard wg01 private-key KP01
-
- The command :opcmd:`show wireguard keypairs pubkey KP01` will then show the
- public key, which needs to be shared with the peer.
-
-
-**remote side**
-
-.. code-block:: none
-
- set interfaces wireguard wg01 address '10.2.0.1/24'
- set interfaces wireguard wg01 description 'VPN-to-wg01'
- set interfaces wireguard wg01 peer to-wg02 allowed-ips '10.1.0.0/24'
- set interfaces wireguard wg01 peer to-wg02 address '192.168.0.124'
- set interfaces wireguard wg01 peer to-wg02 port '12345'
- set interfaces wireguard wg01 peer to-wg02 pubkey 'u41jO3OF73Gq1WARMMFG7tOfk7+r8o8AzPxJ1FZRhzk='
- set interfaces wireguard wg01 port '12345'
- set protocols static route 10.1.0.0/24 interface wg01
-
-Assure that your firewall rules allow the traffic, in which case you
-have a working VPN using WireGuard.
-
-.. code-block:: none
-
- wg01# ping 10.2.0.1
- PING 10.2.0.1 (10.2.0.1) 56(84) bytes of data.
- 64 bytes from 10.2.0.1: icmp_seq=1 ttl=64 time=1.16 ms
- 64 bytes from 10.2.0.1: icmp_seq=2 ttl=64 time=1.77 ms
-
- wg02# ping 10.1.0.1
- PING 10.1.0.1 (10.1.0.1) 56(84) bytes of data.
- 64 bytes from 10.1.0.1: icmp_seq=1 ttl=64 time=4.40 ms
- 64 bytes from 10.1.0.1: icmp_seq=2 ttl=64 time=1.02 ms
-
-An additional layer of symmetric-key crypto can be used on top of the
-asymmetric crypto. This is optional.
-
-.. code-block:: none
-
- wg01# run generate wireguard preshared-key
- rvVDOoc2IYEnV+k5p7TNAmHBMEGTHbPU8Qqg8c/sUqc=
-
-Copy the key, as it is not stored on the local filesystem. Because it
-is a symmetric key, only you and your peer should have knowledge of
-its content. Make sure you distribute the key in a safe manner,
-
-.. code-block:: none
-
- wg01# set interfaces wireguard wg01 peer to-wg02 preshared-key 'rvVDOoc2IYEnV+k5p7TNAmHBMEGTHbPU8Qqg8c/sUqc='
- wg02# set interfaces wireguard wg01 peer to-wg01 preshared-key 'rvVDOoc2IYEnV+k5p7TNAmHBMEGTHbPU8Qqg8c/sUqc='
-
-Road Warrior Example
---------------------
-
-With WireGuard, a Road Warrior VPN config is similar to a site-to-site
-VPN. It just lacks the ``address`` and ``port`` statements.
-
-In the following example, the IPs for the remote clients are defined in
-the peers. This allows the peers to interact with one another.
-
-.. code-block:: none
-
- wireguard wg0 {
- address 10.172.24.1/24
- address 2001:DB8:470:22::1/64
- description RoadWarrior
- peer MacBook {
- allowed-ips 10.172.24.30/32
- allowed-ips 2001:DB8:470:22::30/128
- persistent-keepalive 15
- pubkey F5MbW7ye7DsoxdOaixjdrudshjjxN5UdNV+pGFHqehc=
- }
- peer iPhone {
- allowed-ips 10.172.24.20/32
- allowed-ips 2001:DB8:470:22::20/128
- persistent-keepalive 15
- pubkey BknHcLFo8nOo8Dwq2CjaC/TedchKQ0ebxC7GYn7Al00=
- }
- port 2224
- }
-
-The following is the config for the iPhone peer above. It's important to
-note that the ``AllowedIPs`` setting directs all IPv4 and IPv6 traffic
-through the connection.
-
-.. code-block:: none
-
- [Interface]
- PrivateKey = ARAKLSDJsadlkfjasdfiowqeruriowqeuasdf=
- Address = 10.172.24.20/24, 2001:DB8:470:22::20/64
- DNS = 10.0.0.53, 10.0.0.54
-
- [Peer]
- PublicKey = RIbtUTCfgzNjnLNPQ/ulkGnnB2vMWHm7l2H/xUfbyjc=
- AllowedIPs = 0.0.0.0/0, ::/0
- Endpoint = 192.0.2.1:2224
- PersistentKeepalive = 25
-
-
-This MacBook peer is doing split-tunneling, where only the subnets local
-to the server go over the connection.
-
-.. code-block:: none
-
- [Interface]
- PrivateKey = 8Iasdfweirousd1EVGUk5XsT+wYFZ9mhPnQhmjzaJE6Go=
- Address = 10.172.24.30/24, 2001:DB8:470:22::30/64
-
- [Peer]
- PublicKey = RIbtUTCfgzNjnLNPQ/ulkGnnB2vMWHm7l2H/xUfbyjc=
- AllowedIPs = 10.172.24.30/24, 2001:DB8:470:22::/64
- Endpoint = 192.0.2.1:2224
- PersistentKeepalive = 25
-
-
-********************
-Operational Commands
-********************
-
-Status
-======
-
-.. opcmd:: show interfaces wireguard
-
- Get a list of all wireguard interfaces
-
- .. code-block:: none
-
- Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down
- Interface IP Address S/L Description
- --------- ---------- --- -----------
- wg0 10.0.0.1/24 u/u
-
-
-.. opcmd:: show interfaces wireguard <interface>
-
- Show general information about specific WireGuard interface
-
- .. code-block:: none
-
- vyos@vyos:~$ show interfaces wireguard wg01
- interface: wg0
- address: 10.0.0.1/24
- public key: h1HkYlSuHdJN6Qv4Hz4bBzjGg5WUty+U1L7DJsZy1iE=
- private key: (hidden)
- listening port: 41751
-
- RX: bytes packets errors dropped overrun mcast
- 0 0 0 0 0 0
- TX: bytes packets errors dropped carrier collisions
- 0 0 0 0 0 0
-
-Encryption Keys
-===============
-
-.. opcmd:: show wireguard keypair pubkey <name>
-
- Show public key portion for specified key. This can be either the ``default``
- key, or any other named key-pair.
-
- The ``default`` keypair
-
- .. code-block:: none
-
- vyos@vyos:~$ show wireguard keypair pubkey default
- FAXCPb6EbTlSH5200J5zTopt9AYXneBthAySPBLbZwM=
-
- Name keypair ``KP01``
-
- .. code-block:: none
-
- vyos@vyos:~$ show wireguard keypair pubkey KP01
- HUtsu198toEnm1poGoRTyqkUKfKUdyh54f45dtcahDM=
-
-.. opcmd:: delete wireguard keypair pubkey <name>
-
- Delete a keypair, this can be either the ``default`` key, or any other
- named key-pair.
-
- .. code-block:: none
-
- vyos@vyos:~$ delete wireguard keypair default
-
-
-Mobile "RoadWarrior" clients
-============================
-
-Some users tend to connect their mobile devices using WireGuard to their VyOS
-router. To ease deployment one can generate a "per mobile" configuration from
-the VyOS CLI.
-
-.. warning:: From a security perspective it is not recommended to let a third
- party create the private key for a secured connection. You should create the
- private portion on your own and only hand out the public key. Please keep this
- in mind when using this convenience feature.
-
-.. opcmd:: generate wireguard client-config <name> interface <interface> server <ip|fqdn> address <client-ip>
-
- Using this command you will create a new client configuration which can
- connect to ``interface`` on this router. The public key from the specified
- interface is automatically extracted and embedded into the configuration.
-
- The command also generates a configuration snipped which can be copy/pasted
- into the VyOS CLI if needed. The supplied ``<name>`` on the CLI will become
- the peer name in the snippet.
-
- In addition you will specifiy the IP address or FQDN for the client where it
- will connect to. The address parameter can be used up to two times and is used
- to assign the client its specific IPv4 (/32) or IPv6 (/128) address.
-
- .. figure:: /_static/images/wireguard_qrcode.jpg
- :alt: WireGuard Client QR code
-
-.. stop_vyoslinter
-
-.. _`WireGuard mailing list`: https://lists.zx2c4.com/pipermail/wireguard/2018-December/003704.html
-
-.. start_vyoslinter