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Bypassing a firewall for authorized flows using software defined networking

專利號(hào)
US10079805B2
公開日期
2018-09-18
申請(qǐng)人
FUJITSU LIMITED(JP Kawasaki)
發(fā)明人
David D. Jameson; Russell DeMolay
IPC分類
G06F9/00; H04L29/06
技術(shù)領(lǐng)域
sdn,firewall,router,may,data,flow,criteria,packet,network,pe
地域: Kawasaki-Shi, Kanagawa

摘要

Methods and systems for managing authorized data flows using software defined networking include receiving flow criteria sent from a firewall and extracted from a first data packet, determining whether flow criteria of the first data packet matches an entry in a master data flow list, inserting the flow criteria from the first data packet into the master data flow list on a software defined networking controller, and sending the flow criteria of the first data packet to the router. The router may forward a second data packet associated with the data flow toward a destination based on the validation of the first data packet by the firewall. The flow criteria may not match an entry in a router data flow list on the router and may include at least two of: a source IP address, a destination IP address, a destination port, and a protocol of transmission.

說(shuō)明書

At 720, an evaluation for a match may occur. If no match is found, method 700 may proceed to 722. Otherwise, a match is found and method 700 may proceed to 724. At 722, the flow criteria may be inserted into the master data flow list. The master data flow list may be managed by the SDN controller. The flow criteria inserted into the master data flow list may be associated with a timestamp. The timestamp may correspond to the time at which the data packet was received, the time at which the data packet was inserted, or any other suitable time for processing the data packet. The timestamp may include a date and/or a time. Moreover, the flow criteria inserted into the master data flow list may be associated with a timeout. The timeout may indicate the duration to maintain the flow criteria as an entry in the master data flow list. After the expiration of the timeout, the entry may be invalidated, deleted, and/or removed.

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