Unlike some other ISPs (Vodafone (Openreach) FTTP PPPoE), Sky does not use PPPoE for its Openreach FTTP products.
For EdgeRouter/USG:
set interfaces ethernet eth0 dhcp-options client-option 61 # yes, " is meant to be there - along with the double semicolons set interfaces ethernet eth0 dhcp-options client-option "send dhcp-client-identifier "anything@skydsl|password123";" set interfaces ethernet eth0 dhcp-options client-option "retry 60;"