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# GRE #
Userspace GRE tunnel, designed for OpenVZ servers (require TUN device support).
Checksum, Key, Sequence are not supported.
## Pre-builds ##
Platform | Architecture | URL
----------|--------------|----
GNU/Linux | x86_64 | https://s3.pxx.io/snapshot/gre/gre-x86_64
| armv6l | https://s3.pxx.io/snapshot/gre/gre-armv6l
| armv7l | https://s3.pxx.io/snapshot/gre/gre-armv7l
| aarch64 | https://s3.pxx.io/snapshot/gre/gre-aarch64
## Build ##
```bash
gcc -std=gnu99 -O2 -pipe -o gre gre.c
```
## Usage ##
```bash
sudo ./gre <tun dev> remote local
```
## License ##
Copyright (C) 2015 - 2017, Xiaoxiao <i@pxx.io>
Copyright (C) 2019, Mikael Magnusson <mikma@users.sourceforge.net>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
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