Running IPv6 on 4.4BSD – Summer 2012 Retrochallenge entry

I’m entering the summer Retrochallenge which runs throughout July, the plan is to get an emulated host running with 4.4BSD-lite connected via IPv6 using the NRL patches & if possible serving a basic webpage over HTTP or fail at it & either way document the journey in this post.
It will be a good opportunity to visit the early implementation of IPv6 & learn about the origin of this stack, IPv6 is sexy right? or is that DNS??
I was unaware of the existence of these patches & assumed KAME was the original implementation until I was pointed to the USENIX paper by fellow tweep Dan McDonald.
Looking forward to doing some digging for information & patches 🙂
To fit the challenge rules, the host the emulation will run on will be a Cobalt Qube2 with NetBSD/Cobalt.

Before I started to attempt building things I did some research on what was required & if the patches and any documentation was still around.
Sun Microsystems IPng Implmentations page is still available on though the NRL IPv6+IPsec is long gone, I was able to obtain the patch sets from the RIPE FTP server
The installing & operating 4.4BSD UNIX section of UNIX System Manager’s Manual (SMM) lists the supported platforms by 4.4BSD, I hadn’t realised that VAX was not a officially supported platform in this release by CSRG, the 3 official supported platforms which binaries are shipped for being the HP, DECstation & SPARC platforms, this means that simh is off the list & it’s a toss up between tme & GXemul, I’ve not played with GXemul before but tried the Sun3 emulation on tme a few years back in an attempt to get SunOS 4.x but failed after not getting the disk setup right.
I found a copy of the 4.4BSD-Lite CD ISO files on Poul-Henning Kamps website.
Next step is to get a virtual machine up & running with 4.4BSD-Lite, I’m probably going to start with the DECstation (MIPS) emulation on GXemul & move onto SPARC on tme if things don’t work out. The README with patches states the patches were built on SPARC but I’m hoping this isn’t an issue (endianness?).

My CSRG archives cd set is here, this week will be a cram as I play catch up.
Front cover for CSRG Archives cd set

Back cover for CSRG Archives CD set

OpenNMS-dev port for FreeBSD

10/6/14 – No longer maintained

I’ve created a new FreeBSD port for installing releases from the unstable branch of OpenNMS.
This port suffers from the same issue as the stable port

You can grab the port here

Initial port, installs version 1.7.92

Update to version 1.9.2

I’ve setup a temporary mercurial repository with all version of the port in the repo to make moving forward easier (I say the repo is temporary as I intend to host my own instance of mercurial & to push out to git & bitbucket as well).

Update to version 1.9.7

Update to version 1.9.8
With this release, OpenNMS switched to the new JNA Pinger The JNA Pinger assumes IPv6 is enabled by default & if not doesn’t fail gracefully, this will cause problems if you’re running OpenNMS in a jail from example & you’ve not assigned the jail an IPv6 address, you can keep with the progress of this issue in NMS-4673
PR’s have been raised to update JICMP, JRRD & iplike to the latest versions in ports, see PR #’s 156785 156786 157120

Update to version 1.9.90

Update to version 1.9.93

Configuring OpenSolaris with IPv6 connectivity

To configure OpenSolaris to use IPv6 NDP (neighbour discovery protocol) create an empty file named in the following convention:
first hash being the interface number & the second being a user defined number for a logical interface

If you’re having DNS resolution issues, do
cp /etc/nsswitch.dns /etc/nsswitch.conf

To configure OpenSolaris to use a static IPv6 address
create a file using the same convention as mentioned during the NDP stage above & inside it add
addif ipv6address/mask up
addif 2a01:300:200::1/64 up

To configure your default IPv6 router on OpenSolaris
create a file named /etc/defaultrouter6 & add the ip address inside

The instructions above make the changes persist across reboots, if you’d like to make changes to a current session, the configuring an IPv6 network section of the IP services Solaris administration guide is a handy reference.
These instructions should also apply to Solaris as well though I haven’t tested it.
The source of information for this article was the IPv6hostsolaris wiki article.

Going IPv6

Looking for something to do this weekend I remembered that a few years back after reading Secure Architectures with OpenBSD I’d signed up to freenet6, I retrieved my forgotten account details & logged in to the portal to get started, then remembered why I never got off the ground with this project, the client is a PITA to setup, a quick search of the ports tree showed up net/aiccu.
The description of the port:
AICCU makes it very easy for anybody to get IPv6 connectivity
everywhere they want. It uses the TIC (Tunnel Information & Control)
protocol to request the information needed to setup a tunnel through
which the connectivity is created.

AICCU supports the following tunneling protocols:
– 6in4 static (RFC 2893)
– 6in4 heartbeat (RFC 2893 + draft-massar-v6ops-heartbeat)
– tinc (
– AYIYA (draft-massar-v6ops-ayiya)

As AYIYA even works from behind NAT’s, thus unless there is a very
restrictive firewall in place, anybody should be able to get IPv6
connectivity without problems and everywhere they want.

One does need a SixXS account and at least a tunnel. These
can be freely & gratis requested from the SixXS website.

Before installing the port I headed over to the SixXS website to have a nose around, the FAQ is well worth a read, it lays down the basics of the signup process quiet well.
The only hold up between signing up & getting going with your 1st tunnel is the wait for approval by the project admins which though the site says it can be as long as a week took, it only a few hours for me (even on a saturday!:))
The project works on a credit basis (there is no money inolved), costs are broken down in the FAQ, basically you start off with 25 credits, which allows you to get a tunnel for a single host setup at the cost of 15 credits.
Once you’ve been able to demonstrate that you can keep the tunnel up for seven days you’ll be credited 5 credits, this will give you enough credits to apply for a subnet.
Fingers crossed, if it all goes well I’ll be migrating my home network to IPv6 sometime next week.

The setup of the aiccu client was pretty straightforward, I just needed to provide my username & password to the config file. You don’t actually have to use the aiccu client, you can create a gif(4) manually, this is covered in the faq aswell, but seeing as I’m a n00b at this I will ditch the client once I’m more comfortable. Before you fire up the client you need to configure your firewall rules so that ipv6 traffic is allowed, most importantly icmp6, details covered in the faq.

So, now I have a tunnel setup, the next step is to find a registrar to move my domains to whom supports IPv6 records, surprisingly the big boys, tucows, 1&1, go daddy don’t (well go daddy allows the creation of AAAA records but you can’t use them for your NS records).
The FAQ once again has this covered here
Once I’ve transfered my domains across, I’ll be ditching OpenBSD 4.3 & moving to -CURRENT temporarily as Apache supports IPv6 there.

RIP Jun-ichiro “itojun” Hagino