So, for example, I have 3 VLANS called VLAN 100, 140 & 150, with IP addresses of 172.28.100.x, 172.28.140.x & 172.28.150.x. My DHCP server is in VLAN 51 at 172.28.51.x, and the switch is on mgmt VLAN 31 or 172.28.31.x. For the Routing and DHCP, do I create in interface in each of the vlans, so like 172.28.100.5, 172.28.140.5 & 172.28.150.5 for example pointing to my DHCP server, or would I just use 1 IP for all interfaces in the switch's VLAN 31, forwarding DHCP requests tagged with the VLAN ID to the DHCP server?
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