Basic IPv6 Setup:

The following settings will allow the SmartRG SR505N to obtain a WAN side IPv6 address:

1. Navigate to the modem's web interface. (http://192.168.1.1/admin)
2. Enter the Admin username and password. ("admin" for each by default)
3. Click on the Advanced Setup link.
4. Click on the WAN Service link.
5. Remove any existing WAN Services.
6. Click the Add button.
7. Select the correct layer 2 interface. (atm = ADSL, ptm = VDSL)
8. Click Next.
9. Select PPP over Ethernet (PPPoE).
10. If VDSL, set the 802.1P Priority field to 1 and the 802.1Q VLAN ID field to 35.
11. If ADSL, leave the 802.1P and 802.1Q fields set to -1.
12. Seth the Network Protocol Selection field to IPv4&IPv6(Dual Stack)
13. Click Next.
14. Enter your DSL username into the PPP Username field.
15. Enter your DSL password into the PPP Password field.
16. Check the Enable Firewall box.
17. Check the Enable NAT box.
18. Click Next.
19. Click Next. (Routing -- Default Gateway page)
20. Click Next. (DNS Server Configuration page)
21. Click Apply/Save (WAN Setup - Summary page)

DHCPv6 Subnet Setup

The following settings will allow the SmartRG SR505N to obtain a /56 prefix for use by devices connected to it's LAN ports:

1. Click on LAN.
2. Click on IPv6 Autoconfig.
3. Check Enable DHCPv6 Server.
4. Select Stateless.
5. Check Enable RADVD.
6. Check Enable MLD Snooping.
7. Select Blocking Mode.
8. Click Save/Apply.