Not necessarily in this order...
- confirm that frpig1001 has the same firewall policies as thulium
- configure nging on frpig1001 to answer for payments-listener.frdev.wikimedia.org with correct SSL cert
- add DNS entry for payments-listener.frdev.wikimedia.org pointing to 208.80.155.15
- set up NAT from 208.80.155.15 to frpig1001