公开(公告)号：US12058188B2

公开(公告)日：2024-08-06

申请号：US17308509

申请日：2021-05-05

Applicant: ARRIS Enterprises LLC

Inventor： Mark Stephen Griffiths ,  Matthew Stephen Frick

IPC: H04L65/611 ,  H04L61/251 ,  H04L61/4511 ,  H04L65/102 ,  H04L101/663

CPC classification number: H04L65/611 ,  H04L61/251 ,  H04L61/4511 ,  H04L65/102 ,  H04L2101/663

Abstract: A network address translation (NAT) gateway intercepts packets and determines whether they contain multicast domain name server (mDNS) query or response messages. Upon receiving an mDNS message, the NAT gateway performs address translation to assign a new source address and stores the original source address in a translation table. The NAT gateway then forwards the message to all adjacent networks in order to expand the reach of the packet. If the mDNS messages establish a new client-server connection, the NAT gateway brokers the connection by either acting as a proxy or continuing to perform network address translation.