Cisco Technology, Inc.

Vijay Bollapragada

Rajiv Asati

Ralph Droms

Mohamed Khalid

Haseeb Sarwar Niazi

In an embodiment, an electronic digital data packet router performs receiving a DHCP initiation message on a particular interface among a plurality of network interfaces; modifying the DHCP initiation message by adding a particular DHCP option that signals a DHCP server to provide router configuration data, resulting in a modified DHCP initiation message; relaying the modified DHCP initiation message to the DHCP server; receiving, from the DHCP server, a DHCPOFFER message that comprises the particular DHCP option containing configuration data; configuring the router using the configuration data; relaying the DHCPOFFER message without the particular DHCP option on the particular interface toward another data packet router.

Automated network device provisioning using dynamic host configuration protocol

In an embodiment, an electronic digital data packet router performs receiving a DHCP initiation message on a particular interface among a plurality of network interfaces,; modifying the DHCP initiation message by adding a particular DHCP option that signals a DHCP server to provide router configuration data, resulting in a modified DHCP initiation message; relaying the modified DHCP initiation message to the DHCP server; receiving, from the DHCP server, a DHCPOFFER message that comprises the particular DHCP option containing configuration data; configuring the router using the configuration data; relaying the DHCPOFFER message without the particular DHCP option on the particular interface toward another data packet router.

A method, apparatus and computer program product for providing an encrypted multipoint Virtual Private Network (VPN) service is presented. A first packet of a plurality of packets is received at an ingress provider edge (PE) the plurality of packets destined for a remote server in communication with said egress PE router. A lookup for a destination prefix of a first packet is preformed, and a determination made that a next-hop for the first packet is reachable through a mGRE tunnel. A resolution request is sent to a hub to acquire a routable IP address. The packets sent to the hub are encapsulated, and encrypting until a resolution reply is received and until security associations (SAs) have been exchanged. Then a VPN is established between the ingress and egress PEs and is used for all subsequent packets.

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Cary, NC, United States of America

Vijay Bollapragada