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Re: IPv6 forwarding help



Hesty P wrote:
> Hi all,
> 
> I'm currently having some problem getting ipv6 forwarding to work on my
> network setup. Here is a little ASCII art to illustrate my network:
> 
> 10.20.0.0/16 <http://10.20.0.0/16> ____ 10.20.0.1
> <http://10.20.0.1>       ______ 192.168.0.0/24 <http://192.168.0.0/24>
> _____ 192.168.0.254 <http://192.168.0.254> __ Internet
> Subnet2                192.168.0.11 <http://192.168.0.11>              
> Subnet1                      Router1
>                              Router2

The above only shows IPv4 addresses. Also as you can see, don't post
HTML email, it destroys the ascii.

> So, I got Router1 setup with radvd and an ipv6 tunnel. Machines on
> Subnet1 can get global IPv6 addr and can reach outside. However, Router2
> (running debian) cannot even get a global IPv6 addr. All I can see is
> just link local ipv6 addr on router2 for both interfaces. Any idea where
> I went wrong? How do I get router2 to forward ra from router1 to subnet2
> and forward all ipv6 packets afterwards?

When net.ipv6.conf.<iface>.forwarding is enabled,
net.ipv6.conf.<iface>.accept_ra is automatically (at least functionally)
disabled.

As such, you'll need to configure the addresses manually.

Greets,
 Jeroen

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