configure terminal
interface FastEthernet 1/15
no switchport
ip address 10.223.1.1 255.255.0.0
ip nat inside
exit
access-list 22 permit 10.223.0.0 0.0.255.255
ip nat pool testpool 195.178.203.10 195.178.203.19 netmask 255.255.255.0
ip nat inside source list 22 pool testpool overload
Для включения dhcp-relay в режиме настройки интерфейса
ip helper-address адрес_dhcp_сервера