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Userspace GRE tunnel

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

gcc -std=gnu99 -O2 -pipe -o gre gre.c

Usage

sudo ./gre <tun dev> remote local

License

Copyright (C) 2015 - 2017, Xiaoxiao [email protected]

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/.