NPD6 – Starts 2013 with version 1.0.0

The ongoing project of npd6 (Neighbor Proxy Daemon IPv6) kicks off 2013 with a bright, shiny new release!!!!

Some history is here, and the project page itself is over here.

Or go straight to the download section.

The new version has a host of fixes, tweaks and tuning. Also some asked-for new features (address masks, […]

npd6 – Software now available

As per previous posts and discussions, my project to develop npd6 (Neighbor Proxy Daemon 6) is now advancing very rapidly.

If you have a Linux gateway router terminating your ISP feed supporting IPv6, this may be just what you need. To summarise the problem it solves: your ISP has given you an /64 (or some […]

npd6 – IPv6 neighbor proxy daemon – It lives!

As threatened in article IPv6 neighbor proxy daemon – npd6 and the associated design ramblings here, the npd6 project now lives and breathes.

EDIT: 22 July – The project has really taken shape. Version 0.3 is now useful enough to be considered a working beta version. Building is very simple – do please try it […]

IPv6 neighbor proxy daemon – npd6

I admit defeat… You know how it is: you’re searching for a solution to a technical problem, and you KNOW that someone else has had the same problem. In fact thousands of people have had the same problem. And it was fixed years ago. If I can just find that solution…

EDIT: 22 July – […]

npd6 Design Document

So what must npd6 do in functional terms?

See Neighbor Solicitations. EITHER respond to them directly OR respond via the existing mechanisms. Log activity. Report status. Receive Neighbor Solicitations

The daemon needs to receive incoming neighbor solcitations from a designated port(s). I currently have no idea if this is an easy hook to make from […]

OpenVPN over IPv6

Previous articles have detailed various aspects of getting IPv6 running on a home-gateway router. The aim is to migrate as much as possible towards an IPv6-only situation.

Here I cover the steps required to implement a simple point-to-point OpenVPN (SSL) VPN tunnel using PSK over IPv6 infrastructure.

One key element for me is to migrate […]

IPv6 and DNS

IPv6 DNS – It works for me….. but it shouldn’t.

When in my IPv6 environment I perform a test ping to, say, Google, it seems to work great:

ping6 PING 56 data bytes 64 bytes from 2a00:1450:8006::6a: icmp_seq=1 ttl=55 time=49.3 ms 64 bytes from 2a00:1450:8006::6a: icmp_seq=2 ttl=55 time=44.6 ms . . .

Which […]

IPv6 – Proxy the neighbors (or come back ARP – we loved you really)

After three articles, where am I with my venture in to IPv6? What have we really achieved so far? Well, in functional terms, not so very much yet!!

To recap:

Here I covered a lot of ground, getting basic IPv6 running on a Linux gateway box connected to an ISP providing native IPv6, while […]

IPv6 and default routes

Following on from my first tutorial, we have a box set up which has basic IPv6 connectivity. There’s a firewall in place with a simple but sufficient configuration. And we can ping6 from this box to remote IPv6 destinations.

All of this has, so far, made use only of one network interface (in my case […]

IPv6 – logging and shorewall6

Following on from my early success at get IPv6 running, I soon hit a significant issue: firewall logging.


Now this need not be a “blocker” for everyone, but I take my firewall logging duties quite seriously…!

shorewall IPv4 logging

Currently I have IPv4 shorewall configured to log not using the standard syslog mechanism, but […]