HOWTO push IPv6 DNS to client within tun-ipv6 mode?

luxxsys

I establish an IPv6 in IPv4 Internet tunnel using OPENVPN.
Now clients can only pull IPv6 addresses and ipv6 route from server, but no IPv6 DNS.
I want to set IPv6 DNS automaticly for clients, waht should I do?
Thanks.

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Server conf:
local xxxxxxxx(v4 public)
port 9185
proto udp
dev tun
tun-ipv6
push tun-ipv6
ifconfig-ipv6 200c:1:1000::1
ca /etc/openvpn/easy-rsa/keys/ca.crt
cert /etc/openvpn/easy-rsa/keys/server.crt
key /etc/openvpn/easy-rsa/keys/server.key # This file should be kept secret
auth-user-pass-verify /etc/openvpn/checkpsw.sh via-env
client-cert-not-required
username-as-common-name
dh /etc/openvpn/easy-rsa/keys/dh1024.pem
topology subnet
server 169.254.0.0 255.255.0.0
server-ipv6 200c:1:1000::/64
push "route-ipv6 2000::/3"
duplicate-cn
keepalive 3 20
persist-key
persist-tun
status openvpn-status.log
log-append /var/log/openvpn/openvpn.log
verb 3
mssfix 1200
script-security 3
client-connect /etc/openvpn/client-con-log
client-disconnect /etc/openvpn/client-discon-log
crl-verify /etc/openvpn/easy-rsa/keys/crl.pem

Traffic

As per the reply you have from the mailing list:

Gert wroteYou could push "setenv ipv6dns 2001:db8:..." and run an --up script on
the client side that will read this environment variable and installs
the IPv6 DNS servers in the right matter for your clients (like, calling
resolvconf on linux, or whatever netsh invocation works on windows).