Electrical computers and digital processing systems: multicomput – Miscellaneous
Reexamination Certificate
2004-02-02
2009-12-29
Najjar, Saleh (Department: 2455)
Electrical computers and digital processing systems: multicomput
Miscellaneous
C709S220000, C709S223000, C379S381000, C379S390020, C379S401000
Reexamination Certificate
active
07640287
ABSTRACT:
A method and apparatus for auto-configuring layer 3 intermediate devices in computer networks by extending the Dynamic Host Configuration Protocol (DHCP). The devices generate, transmit and receive DHCP messages having novel options embedded therein. The options permit a layer 3 device to request and receive from a DHCP server a unique, overall IP address that may be assigned to the device. The device may also request and receive one or more IP subnets and corresponding IP addresses for each of its interfaces. The device may further receive the routing protocols to be used on the various subnets. The layer 3 device can thus be auto-configured with IP configuration parameters, including IP subnets, IP addresses and routing protocols without the time-consuming, manual involvement of a network administrator.
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Gai Silvano
McCloghrie Keith
Rekhter Yakov
Cesari and McKenna LLP
Cisco Technology Inc.
Hamza Faruk
Najjar Saleh
LandOfFree
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