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19.7 Legacy Series / IPv6 ULA + track interface
« on: January 15, 2020, 01:09:02 pm »
Can someone advise me how to setup IPv6 properly for the following scenario:
4 VLANS
IPv6 assignment to all VLANS via track interface WAN -> works
IPv6 may change during DSL - reconnect (Deutsche Telekom).
piHole as a DNS server in VLAN-DMZ should be reachable as IPv6 DNS server. As my public IPv6 adresses may change, I cannot assign statically an adress from my public range to piHole. Distributing a dynamic adress for a DNS server sounds like a bad idea.
So my idea (open for others) is to assign ULA adresses in addition to the public ones. Then I can distribute the piHole ULA adress via DHCP6 to the clients and they can reach the DNS server.
So far the idea. I couldn't figure out how to set this up in OPNsense though. How can I assign ULA static addresses in addition to the dynamic ones?
thanks!
4 VLANS
IPv6 assignment to all VLANS via track interface WAN -> works
IPv6 may change during DSL - reconnect (Deutsche Telekom).
piHole as a DNS server in VLAN-DMZ should be reachable as IPv6 DNS server. As my public IPv6 adresses may change, I cannot assign statically an adress from my public range to piHole. Distributing a dynamic adress for a DNS server sounds like a bad idea.
So my idea (open for others) is to assign ULA adresses in addition to the public ones. Then I can distribute the piHole ULA adress via DHCP6 to the clients and they can reach the DNS server.
So far the idea. I couldn't figure out how to set this up in OPNsense though. How can I assign ULA static addresses in addition to the dynamic ones?
thanks!