In our company we have a CISCO 2811 Switch accompanied by an HP1920 Switch. Our current configuration consists of 2 VLANS:
- VLAN-2 that has no DHCP in IP range 192.168.0.0/24
- VLAN-5 That contains DHCP in IP range 192.168.1.0/24
AFAIK VLAN stands for virtual LAN meaning that can share the same Ethernet cable.
So once I plug in a device, I need to place manually the IP so it can be connected to the Internet. If I just plug in the device to the network it won't be able to connect to the Internet because it will fail to fetch an IP.
So I wonder why the device connected to Ethernet is unable to fetch an IP from VLAN-5 but instead I need to configure it with an IP from VLAN-5?