$ host forum.lowyat.net
forum.lowyat.net has address 103.12.152.70
forum.lowyat.net has IPv6 address 2401:3400:2000:1::17
$ host 2401:3400:2000:1::17
7.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.0.0.0.0.0.0.2.0.0.4.3.1.0.4.2.ip6.arpa domain name pointer forum.lowyat.net.

opkg update && opkg install ip6tables kmod-ip6tables radvd wide-dhcpv6-client && fw restart

config interface 'lan'
option ifname 'eth0'
option type 'bridge'
option proto 'static'
option netmask '255.255.255.0'
option ipaddr '192.168.1.1'
option gateway '192.168.1.1'
option stp '1'
option mtu '1452'

config interface 'wan'
option ifname 'eth1'
option _orig_ifname 'eth1'
option _orig_bridge 'false'
option proto 'pppoe'
option username '*********'
option password '********'
option mtu '1452'
option ipv6 '1'
option peerdns '0'
option dns '8.8.8.8 8.8.4.4'

onfig interface
option interface 'lan'
option AdvSendAdvert '1'
list client ''
option ignore '0'
option IgnoreIfMissing '1'
option AdvSourceLLAddress '1'
option AdvLinkMTU '1452'
option AdvDefaultPreference 'medium'

config prefix
option interface 'lan'
list prefix ''
option AdvOnLink '1'
option AdvAutonomous '1'
option ignore '0'

config route
option interface 'lan'
list prefix ''
option ignore '0'

config rdnss
option interface 'lan'
list addr '2001:4860:4860::8888'
list addr '2001:4860:4860::8844'
option ignore '0'

config dnssl
option interface 'lan'
list suffix ''
option ignore '1'

config 'dhcp6c' 'basic'
option 'enabled' '1'    # 1 = enabled; 0 = disabled
option 'interface' 'wan'   # This is the interface the DHCPv6 client will run on
option 'dns' 'dnsmasq'    # Which DNS server you run (only dnsmasq currently supported)
option 'debug' '0'    # 1 = enable debugging; 0 = disable debugging

# Send options (1 = send; 0 = do not send)
option 'pd' '1'     # Prefix Delegation
option 'na' '0'     # Non-Temporary Address
option 'rapid_commit' '1'   # Rapid Commit

# Request options (1 = request; 0 = do not request)
option 'domain_name_servers' '1'
option 'domain_name' '0'
option 'ntp_servers' '0'
option 'sip_server_address' '0'
option 'sip_server_domain_name' '0'
option 'nis_server_address' '0'
option 'nis_domain_name' '0'
option 'nisp_server_address' '0'
option 'nisp_domain_name' '0'
option 'bcmcs_server_address' '0'
option 'bcmcs_server_domain_name' '0'

# Override the used DUID, by default it is derived from the interface MAC
# The given value must be uppercase and globally unique!
#option 'duid' '00:03:00:06:D8:5D:4C:A5:03:F2'

# Script to run when a reply is received
option 'script' '/usr/bin/dhcp6c-state'

# Define one or more interfaces on which prefixes should be assigned
config 'interface' 'loopback'
option 'enabled' '0'    # 1 = enabled; 0 = disabled
option 'sla_id' '0'    # Site level aggregator identifier specified in decimal (subnet)
option 'sla_len' '0'    # Site level aggregator length (64 - size of prefix being delegated)
      # e.g. /60 from ISP -> 64 - 60 = 4

config 'interface' 'lan'
option 'enabled' '1'
option 'sla_id' '0'
option 'sla_len' '0'