How do I make Windows DHCP work with VLANs?

1. Create 6 Layer 2 Vlans on one of your 2950 switches.
2. Provision a trunk port on the 2950 switch which will connect to a port on the Router.
3. Setup the same L2 Vlans on the Router and then create a subinterface for each of these Vlans with the IP address being the Default Gateway for the clients in each Vlan.

Does WDS need DHCP?

Scenario 2: WDS and DHCP running on different servers that are on different subnets (broadcasting would be problematic because most enviornments don’t allow broadcast traffic to cross subnets: for the WDS client to find the WDS server you’ll need to configure two DHCP options—option 66 and option 67.

Under Which option in DHCP we can provide PXE server information in scope properties?

Setting DHCP options for WDS PXE booting Although Microsoft does not recommend this method, you can use the following DHCP options to direct PXE clients to an appropriate NBP to download: Option 60 = client identifier. You should set this to the string PXEClient.

Which option from DHCP is required for PXE boot clients?

DHCP Option 60 – You need this PXE Service to provide the “network boot program” details to your PXE clients.

Can DHCP assign VLAN?

DHCP VLAN Relay can be applied in such scenario: a DHCP server is deployed to offer IP addresses to clients in multiple VLANs. These VLANs do not have VLAN interfaces. DHCP VLAN Relay can manually designate an L3 interface for all the VLANs as the default relay agent interface.

What is option 82?

Option 82 is called the relay agent information option and is inserted by the DHCP relay agent when forwarding client-originated DHCP packets to a DHCP server. The routing switch can operate as a DHCP relay agent to enable communication between a client and a DHCP server on a different subnet.

What port does WDS use?

The following UDP ports need to be open for WDS to work across a firewall: 67, 69, and 4011 for DHCP and TFTP; 64001 through 65000 (random ports from this range are used by TFTP and for multicasting); and 68 if DHCP authorization is required on the server.

What is option 67 used for?

That 67 option tells the client a path to a file from a tftp server (option 66) that will be retrieved and used to boot. That file needs to be a basic boot loader that will do any other required work.

What is option 43 used for?

Lync Server 2010 introduced the usage of DHCP Option 43 which is used to provide clients and devices on a network the ability to locate the Lync Server’s Certificate Provisioning service, and thus automatically download a certificate required to support secure HTTPS and TLS communications for the remainder of the …

What is option 66 used for?

Option 66 allows you to specify the address of a TFTP server on your network, which is how Endpoint Manager serves configuration files to phones. So basically you need to add a DHCP configuration setting specifying your PBX server’s IP address for option 66.

How does DHCP know which VLAN?

The DHCP server will use the source IP address on the request to determine the appropriate scope to use for assigning the address. VLAN is the answer here. The easiest thing to do would be to have individual NICs for each VLAN subnet and bind the DHCP server IP ranges to their respective NIC.

What is option 43?

–> Option 43 helps an Access Point to find out Wireless Controller in Layer 3 Network. –> As soon as AP boots up it sends DHCP message, this DHCP message is forwarded by Switch or router to the Wireless Contoller.