What roles does SOHO router typically play in regards to IP address

Question

what roles does soho router typically play in regards to ip address assignment?this question is part of CCENT/ccna icnd1 chapters 12 + 13

John Smith · Accepted Answer

DHCP server on the interface connected to the PCs at the home/office DHCP client on the interface connected to the ISP

What roles does SOHO router typically play in regards to IP address assignment?