Does DHCP work through switch?

Does DHCP work through switch?

A switch does not have DHCP capability. DHCP is usually performed by a router. Computers connected to a switch without a router will not be able to communicate with each other unless you assign a static IP to the computer or the network device connected to it.

Can a network switch broadcast packets on the network?

On a switched network, Device 1 sends a broadcast or multicast packet that is propagated to all ports of the switch. (A typical layer-2 switch does not filter either broadcast or multicast traffic.) On a routed network, however, a router does not forward broadcast traffic.

Can a switch perform broadcast?

For broadcasts to work as intended the switch must handle broadcasts as a special case, and must send broadcasts to all other connected ports. If a switch receives a message that is sent to that destination MAC address then the switch knows it is a broadcast and will forward the message to every other connected port.

How do I enable DHCP in Juniper switch?

Solution:

1. Create DHCP services on the EX switch by creating a DHCP pool: juniper@EX# set system services dhcp pool 10.0.0.0/24.
2. Add the lowest IP address and highest IP address in DHCP pool address-range (optional): juniper@EX# set system services dhcp pool 10.0.0.0/24 address-range low 10.0.0.2 high 10.0.0.252.

What is a hub vs switch?

A Hub is a networking device that allows you to connect multiple PCs to a single network, whereas a Switch connects various devices together on a single computer network.

What should my DHCP settings be?

Mixing Configurations Since the default DHCP address range is between 100 and 149, you’ll want to avoid all of the addresses between 192.168. 1.100 and 192.168. 1.149 when you’re assigning static IP addresses. That leaves the ranges from 2-99 and from 150-254 wide open, which is usually plenty for most home networks.

What is DHCP relay?

A DHCP relay agent is a host or router that forwards DHCP packets between clients and servers. It allows local hosts to acquire dynamic IP addresses from the remote DHCP Server. Relay agent receives DHCP messages and generates a new DHCP message to send out on another interface.

What is IP DHCP relay?

DHCP relay agent is any TCP/IP host which is used to forward request and replies between DHCP server and client when the server is present on the different network. Relay agents receive DHCP messages and then generate a new DHCP message to send out on another INTERFACE.

How does DHCP relay work in a switch?

DHCP relay is a feature that is used by a switch, also known as the relay agent, to allow DHCP communication between hosts and remote DHCP servers that are not on the same network. When a client sends out a DHCP broadcast for an IP address, the relay agent forwards the request to the subnet at which the remote DHCP server resides.

How does a DHCP server respond to a broadcast request?

The DHCP client sends broadcast request packets to the network; the DHCP servers respond with broadcast packets that offer IP parameters, such as an IP address for the client. After the client chooses the IP parameters, communication between the client and server is by unicast packets.

Can a DHCP address be received from any switch?

A DHCP address can now be received from any switch with switchport access to that trunk and the binding can be seen on the 3750. So I guess that layer 2 switches can’t give DHCP across trunks whereas layer 3 switches can? I don’t think this is logical but could it be true? 11-23-2015 07:09 PM 11-23-2015 07:09 PM

How does hp routing switch work with DHCP server?

HP routing switches provide the DHCP relay agent to enable communication from a DHCP server to DHCP clients on subnets other than the one the server resides on. The DHCP relay agent transfers DHCP messages from DHCP clients located on a subnet without a DHCP server to other subnets. It also relays answers from DHCP servers to DHCP clients.