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21.7 Legacy Series / IPv6 BT Openreach FTTP, OpenWRT and OPNsense - SOLVED
« on: January 12, 2022, 06:23:27 pm »
Finally got it all working. The trick was /56 from BT and the /60 on OPNsense WAN. Then it all worked.
Openwrt:
/56 request from BT
IPv6 settings under DHCP - RA server mode, DHCPv6-Service server mode, NDP proxy hybrid, DHCPv6-Mode stateless & stateful
OPNsense:
WAN (igb0) IPv4 = DHCP
IPv6 = DHCPv6
DHCPv6 client config:
Config mode = basic
Request only IPv6 prefix = unticked (do not select)
Prefix delegation size = 60
Send IPv6 prefix hint = ticked/selected
Use IPv4 connectivity = ticked/selected
LAN (igb1 and others):
IPv4 type = static IPv4
IPv6 type = Track interface
Static IPv4 = 172.16.1.1 (or whatever you want)
IPv4 upstream gateway = auto-detect
Track IPv6 interface:
IPv6 interface = WAN
IPv6 Prefix ID = 0 (no idea what it does but it works)
Manual configuration = tick/selected
Hope that helps someone
Openwrt:
/56 request from BT
IPv6 settings under DHCP - RA server mode, DHCPv6-Service server mode, NDP proxy hybrid, DHCPv6-Mode stateless & stateful
OPNsense:
WAN (igb0) IPv4 = DHCP
IPv6 = DHCPv6
DHCPv6 client config:
Config mode = basic
Request only IPv6 prefix = unticked (do not select)
Prefix delegation size = 60
Send IPv6 prefix hint = ticked/selected
Use IPv4 connectivity = ticked/selected
LAN (igb1 and others):
IPv4 type = static IPv4
IPv6 type = Track interface
Static IPv4 = 172.16.1.1 (or whatever you want)
IPv4 upstream gateway = auto-detect
Track IPv6 interface:
IPv6 interface = WAN
IPv6 Prefix ID = 0 (no idea what it does but it works)
Manual configuration = tick/selected
Hope that helps someone