https://github.com/njh/tinyppp6

Tiny implementation of PPP for IPv6
https://github.com/njh/tinyppp6

ipv6 ppp rfc1661 rfc1662

Last synced: 16 days ago
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Tiny implementation of PPP for IPv6

• Host: GitHub
• URL: https://github.com/njh/tinyppp6
• Owner: njh
• License: mit
• Created: 2021-02-22T00:05:11.000Z (almost 4 years ago)
• Default Branch: main
• Last Pushed: 2021-04-20T23:36:41.000Z (over 3 years ago)
• Last Synced: 2024-10-30T17:26:03.479Z (2 months ago)
• Topics: ipv6, ppp, rfc1661, rfc1662
• Language: C
• Homepage:
• Size: 119 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
tinyppp6

========

Tiny implementation of PPP for IPv6.

This project is a proof of concept to see how much work it is to build a minimal IPv6-only implementation of the [Point-to-Point Protocol].

It is completely stand-alone process and does not interact with the kernel's network stack.

It has been tested against version 2.4.7 of [Linux pppd] (running on Debian Linux).

Features

--------

* Responds to LCP pings

* Responds to IPv6 ICMP pings on link-local

* Rejects Unknown Protocols

* Prints out UDP packets sent to port 1234

* Connects using the `pty` option in [Linux pppd]

Not Implemented

---------------

* IPv4

* SLAAC

* DHCPv6

* Any header / protocol compression

* IPv6 Extension Headers are not supported

* TCP

Running tinyppp6

----------------

First compile tinyppp6 using the `make` command.

Use the following to start Linux pppd and connect it to a tinyppp6 sub-process:

```

sudo pppd \

 nodetach \

 noauth \

 noip \

 +ipv6 \

 ipv6 ::1,::2 \

 pty './src/tinyppp6'

```

The following Link-local IPv6 addresses will then be setup:

* `fe80::1` - the Linux pppd end of the PPP connection

* `fe80::2` - the tinyppp6 end of the PPP connection

You should then be able to send ICMPv6 pings to tinyppp6 using:

```

ping6 fe80::2%ppp0

PING fe80::2%ppp0(fe80::2%ppp0) 56 data bytes

64 bytes from fe80::2%ppp0: icmp_seq=1 ttl=64 time=0.588 ms

64 bytes from fe80::2%ppp0: icmp_seq=2 ttl=64 time=0.555 ms

64 bytes from fe80::2%ppp0: icmp_seq=3 ttl=64 time=0.645 ms

64 bytes from fe80::2%ppp0: icmp_seq=4 ttl=64 time=0.601 ms

```

And send UDP packets to tinyppp6 using:

```

echo -n "Hello World" | socat - UDP6:[fe80::2%ppp0]:1234

```

[Point-to-Point Protocol]:  https://en.wikipedia.org/wiki/Point-to-Point_Protocol

[Linux pppd]:  https://ppp.samba.org/