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Nico Schottelius 2020-12-15 09:26:41 +01:00
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content/u/blog/managing-ipv4-islands-with-jool-and-openwrt/contents.lr
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@ -12,10 +12,10 @@ body:
## Introduction
At ungleich we are using [Jool](https://www.jool.mx/) in a
variety of scenarios with NAT64 or SIIT. The main use of jool
in our infrastructure is to enable IPv6 only
hosts to communicate with the IPv4 Internet.
At ungleich we are using [Jool](https://www.jool.mx/) in a variety of
scenarios with NAT64 or SIIT. The main use of jool in our
infrastructure is to enable IPv6 only hosts to communicate with the
IPv4 Internet.
However today we want to show you a different use case of jool:
Enabling IPv4 islands to communicate with the IPv6 Internet.
@ -33,6 +33,16 @@ world, but we can do a 1:1 mapping from the IPv6 world:
![](/u/image/ipv4-ipv6-nat-asymmetric.png)
## Installing jool
Installing jool on OpenWrt is very easy, it is just a matter of
installing the kernel module and the tools for managing jool:
```
opkg update
opkg install kmod-jool jool-tools
```
## Making IPv4 islands reachable
Assume that you are mostly running IPv6 only networks. And you happen
@ -91,3 +101,8 @@ segment is now reachable. If you want to reach the IP address
a matter of fact, while writing this article, the sample network is up and
running and you should be able to **ping
2a0a:e5c1:18f:b00::192.168.1.1** from the IPv6 Internet.
## More of this?
If you are interested in IPv6 or network, feel free to join us on the
[IPv6.chat](https://IPv6.chat).