Similar to vendor extensions, DHCP options are tagged data items that provide information to a DHCP client. The options are sent in a variable-length field at the end of a DHCP message. For example, the DHCP Message Type is option 53, and a value of 1 indicates the DHCPDISCOVER message.

DHCP options have the same format as the BOOTP 'vendor extensions'. Options may be fixed length or variable length. All options begin with a tag byte, which uniquely identifies the option. Fixed length options without data consist of only a tag byte. DHCP Options for Network Time Server - Server Fault It looks like there are two options for providing network time settings to a DHCP client; option 004 and option 042. The description for 004 is "Time Server", while 042 specifies NTP. Is there a reason to use one or the other, or is it just vendor preference? If the client uses option 042, is … Configuring DHCP server Site Specific Option Number for The configuration utilizes the Site Specific Option Number (SSON) of a DHCP server to provide basic variables of the environment for the one-X® IP Deskphone. These Application Notes are specific for running Avaya File Server Application MV_IPTel on a Microsoft Windows platform. Avaya File Server Application MV_IPTel is also available for Linux What Is DHCP? (Dynamic Host Configuration Protocol)

Configure Windows DHCP for Avaya IP telephones | McGearyTech

Configure Option 125 on a Server to Allow Dynamic Host Dec 13, 2018 RFC 5859 - TFTP Server Address Option for DHCPv4 The option MUST NOT be specified by the DHCP client, as it is intended only to be returned from the DHCP server. If the DHCP client wants to receive this information from the server, it needs to include the number 150 in the "DHCP Parameter List" option (55).

To set the options, refer to DHCP Management section. Option Number. Name. Description. Data Type. 2. Time offset. Time offset in seconds from UTC. Four-byte numeric value.

DHCP Server Options of Vigor Router | DrayTek Jul 17, 2018 Configure Windows DHCP server option 138 to push Wireless If you use an external DHCP server, additional configuration might be required on the DHCP server. This KB article explains how to configure Windows DHCP server to serve the FortiAP with option 138. On Windows server this configuration can be made either using command line or GUI: Command line: C:\WINDOWS\system32>netsh netsh>dhcp EdgeRouter - Custom DHCP Server Options – Ubiquiti Add a DHCP Option. Back to Top. Four settings are required when configuring a DHCP server: name The name of the DHCP scope (LAN).; subnet The subnet range (192.168.1.0/24).; option The DHCP option (Default Gateway, DNS, etc). option The value given to the DHCP option. Below is an example on how to add option 242 to an existing DHCP configuration. Configuring DHCP for ShoreTel IP Phones