title: Building stateless redundant IPv6 routers
---
pub_date: 2021-04-21
---
author: ungleich virtualisation team
---
twitter_handle: ungleich
---
_hidden: no
---
_discoverable: no
---
abstract:
It's time for IPv6 in docker, too.
---
body:

```
interface eth1.2
{
  AdvSendAdvert on;
  MinRtrAdvInterval 3;
  MaxRtrAdvInterval 5;
  AdvDefaultLifetime 10;

  prefix 2a0a:e5c0:0:0::/64 { };
  prefix 2a0a:e5c0:0:10::/64 { };

  RDNSS 2a0a:e5c0:0:a::a 2a0a:e5c0:0:a::b { AdvRDNSSLifetime 6000; };
  DNSSL place5.ungleich.ch {  AdvDNSSLLifetime 6000; } ;
};
```