[kiner_xix]

Hi,

I'm trying to get a Wireguard tunnel to work with IPv6 on my router (Firmware: DD-WRT v3.0-r58207 ).

I can already establishing an tunnel, if I'm in my private LAN. But from outside (via cellphone) it does not work.
As endpoint in the client i use the IP: 2a01:xxxx:xxxx:xxxx:1659:c0ff:fe9b:6f05 (see also br0), which is shown as public IP for the router.


Because, it works in my LAN, i guess it is a firewall problem.

I was trying to follow this discussion https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=333513 but it does not help.

For the IPv6 configuration, i use DHCPv6 with prefix delegation.

My Wireguard configuration is:

[egc]

I am not sure if it is a WireGuard problem but it looks like IPv6 is not implemented on your router there is no IPv6 GUA on your WAN:

[kiner_xix]

[egc]

I do not know how you have setup IPv6

Maybe start a new thread asking assistance with IPv6 setup for your router and network if necessary.

I have some notes about it:
https://raw.githubusercontent.com/egc112/ddwrt/main/IPv6%20DNSMasq%20IPv6%20RA.pdf

Maybe those are helpful

[Per Yngve Berg]

You have a /56 Prefix Delegation. That is good. Now you need to carve it up into /64s and assign one to oet1.

In dhcp6c additional configuration add:

interface vlan2 {
send ia-pd 0;
send rapid-commit;
#request domain-name-servers;
script "/sbin/dhcp6c-state";
};
id-assoc pd 0 {
prefix ::/56 infinity;
prefix-interface br0 {
sla-id 0;
sla-len 8;
};
prefix-interface oet1 {
sla-id 1;
sla-len 8;
};

};
id-assoc na 0 { };