Generic method for customization of dhcp options

H - Electricity – 04 – L

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Details

H04L 29/12 (2006.01) H04L 29/06 (2006.01)

Patent

CA 2449176

The Dynamic Host Control Protocol (DHCP) is a text-based protocol that functions over the Internet Protocol layer. The main use for this protocol is to configure rebooting networking equipment. DHCP servers can assign dynamic IP addresses to DHCP clients from a pool of addresses, or can assign static addresses manually assigned by network administrators. Along with its assigned IP address, a DHCP client is subject to receive a plethora of other useful configuration information. DHCP information, called options in DHCP lore, are typically registered with the IANA (Internet Assigned Numbers Authority), and can have virtually any format for their data field. The present invention describes a generic way of adding new options of a DHCP client by specifying the data type for the option. This allows easy customization of DHCP clients. Typical examples of this optional information are the local subnet mask and the local router's IP address.

Le protocole DHCP est un protocole textuel qui fonctionne sur la couche IP. La fonction principale de ce protocole est la configuration de matériel réseautique de redémarrage. Des serveurs DHCP peuvent affecter des adresses IP dynamiques aux clients de DHCP à partir d'un ensemble d'adresses, ou peut affecter des adresses statiques manuellement affectées aux administrateurs de réseaux. Conjointement à ses adresses IP, un client de DHCP peut recevoir une pléthore d'autres informations de configuration utiles. L'information DHCP, appelée options dans la terminologie DHCP, sont de manière typique enregistrées auprès de l'IANA, et peuvent présenter virtuellement n'importe quel format pour leur champ de données. La présente invention décrit une manière générique d'addition de nouvelles options à un client de DHCP en spécifiant le type de données pour l'option. Cela permet une personnalisation aisée des clients de DHCP. Des exemples typiques de l'information sur les options sont le filtre d'adresse locale et l'adresse IP du routeur local.

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