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# Wireguard vpp-plugin {#wireguard_plugin_doc}
## Overview
This plugin is an implementation of [wireguard protocol](https://www.wireguard.com/) for VPP. It allows one to create secure VPN tunnels.
This implementation is based on [wireguard-openbsd](https://git.zx2c4.com/wireguard-openbsd/).
## Crypto
The crypto protocols:
- blake2s [[Source]](https://github.com/BLAKE2/BLAKE2)
OpenSSL:
- curve25519
- chachapoly1305
## Plugin usage example
### Create wireguard interface
```
> vpp# wireguard create listen-port <port> private-key <priv_key> src <src_ip4> [generate-key]
> *wg_interface*
> vpp# set int state <wg_interface> up
> vpp# set int ip address <wg_interface> <wg_ip4>
```
### Add a peer configuration:
```
> vpp# wireguard peer add <wg_interface> public-key <pub_key_other> endpoint <ip4_dst> allowed-ip <prefix> port <port_dst> persistent-keepalive [keepalive_interval]
> vpp# *peer_idx*
```
### Add routes for allowed-ip:
```
> ip route add <prefix> via <wg_ip4> <wg_interface>
```
### Show config
```
> vpp# show wireguard interface
> vpp# show wireguard peer
```
### Remove peer
```
> vpp# wireguard peer remove <peer_idx>
```
### Delete interface
```
> vpp# wireguard delete <wg_interface>
```
## Main next steps for improving this implementation
1. Use all benefits of VPP-engine.
2. Add IPv6 support (currently only supports IPv4)
3. Add DoS protection as in original protocol (using cookie)
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