US 2023/0087327 A1Published application

Automatic ipv6/ipv4 fallback approach in proxy networks

AssigneeWebshare Software Company

InventorASIM UTKU ZIHNIOGLU

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Abstract

The method for an automated IPv6/IPv4 fallback approach in proxy networks is presented. In some embodiments, the method comprises receiving, at a proxy server, a request from a client executing on a client computer for access to a target computer; determining identification-information of the client; determining an address pair including an IPv6 address and an IPv4 address of the proxy server; assigning the address pair to the identification-information of the client; establishing a first communications connection between the client computer and the proxy server using one of IP addresses included in the address pair, and a second communications connection between the proxy server and the target computer using one of IP addresses included in the address pair; and facilitating a network packet flow between the client computer and the target computer using the first communications connection and the second communications connection.

Claims20

Dependent claims

A computer system comprising:

one or more computer processors;
storage media;
and
instructions stored in the storage media that, when executed by the one or more computer processors, cause the one or more computer processors to perform:
receiving, at a proxy server of a plurality of proxy servers, a request from a client executing on a client computer for access to a target computer;
requesting one or more IP addresses of the target computer from a Domain Name System (DNS) server;
upon receiving the one or more IP addresses of the target computer, determining whether the one or more IP addresses include an IPv6 address of the target computer;
in response to determining that the IPv6 address of the target computer is included in the one or more IP addresses of the target computer:
determining whether the plurality of proxy servers includes an IPv6 proxy server configured to handle IPv6 communications;
in response to determining that the plurality of proxy servers includes the IPv6 proxy server:
selecting an IPv6 address of the IPv6 proxy server from a pool of IP addresses assigned to the plurality of proxy servers;
establishing, by the IPv6 proxy server, an IPv6 communications connections between the IPv6 proxy server and the target computer using the IPv6 address of the target computer and the IPv6 address of the IPv6 proxy server;
in response to determining that the one or more IP addresses does not include the IPv6 address of the target computer:
determining whether an IPv4 address of the target computer is included in the one or more IP addresses of the target computer:
determining whether the plurality of proxy servers includes an IPv4 proxy server configured to handle IPv4 communications;
in response to determining that the plurality of proxy servers includes an IPv4 server:
selecting an IPv4 address of the IPv4 proxy server from the pool of IP addresses assigned to the plurality of proxy servers;
establishing, by the IPv4 proxy server, an IPv4 communications connections between the IPv4 proxy server and the target computer using the IPv4 address of the target computer and the IPv4 address of the IPv4 proxy server.

15 more elements

A computer-implemented method comprising:

receiving, at a proxy server of a plurality of proxy servers, a request from a client executing on a client computer for access to a target computer;
requesting one or more IP addresses of the target computer from a Domain Name System (DNS) server;
upon receiving the one or more IP addresses of the target computer, determining whether the one or more IP addresses include an IPv6 address of the target computer;
in response to determining that the IPv6 address of the target computer is included in the one or more IP addresses of the target computer:
determining whether the plurality of proxy servers includes an IPv6 proxy server configured to handle IPv6 communications;
in response to determining that the plurality of proxy servers includes the IPv6 proxy server:
selecting an IPv6 address of the IPv6 proxy server from a pool of IP addresses assigned to the plurality of proxy servers;
establishing, by the IPv6 proxy server, an IPv6 communications connections between the IPv6 proxy server and the target computer using the IPv6 address of the target computer and the IPv6 address of the IPv6 proxy server;
in response to determining that the one or more IP addresses does not include the IPv6 address of the target computer:
determining whether an IPv4 address of the target computer is included in the one or more IP addresses of the target computer:
determining whether the plurality of proxy servers includes an IPv4 proxy server configured to handle IPv4 communications;
in response to determining that the plurality of proxy servers includes an IPv4 server:
selecting an IPv4 address of the IPv4 proxy server from the pool of IP addresses assigned to the plurality of proxy servers;
establishing, by the IPv4 proxy server, an IPv4 communications connections between the IPv4 proxy server and the target computer using the IPv4 address of the target computer and the IPv4 address of the IPv4 proxy server.

11 more elements

A computer-readable storage medium storing one or more instructions which, when executed by one or more processors, cause the one or more processors to perform:

receiving, at a proxy server of a plurality of proxy servers, a request from a client executing on a client computer for access to a target computer;
requesting one or more IP addresses of the target computer from a Domain Name System (DNS) server;
upon receiving the one or more IP addresses of the target computer, determining whether the one or more IP addresses include an IPv6 address of the target computer;
in response to determining that the IPv6 address of the target computer is included in the one or more IP addresses of the target computer:
determining whether the plurality of proxy servers includes an IPv6 proxy server configured to handle IPv6 communications;
in response to determining that the plurality of proxy servers includes the IPv6 proxy server:
selecting an IPv6 address of the IPv6 proxy server from a pool of IP addresses assigned to the plurality of proxy servers;
establishing, by the IPv6 proxy server, an IPv6 communications connections between the IPv6 proxy server and the target computer using the IPv6 address of the target computer and the IPv6 address of the IPv6 proxy server;
in response to determining that the one or more IP addresses does not include the IPv6 address of the target computer:
determining whether an IPv4 address of the target computer is included in the one or more IP addresses of the target computer:
determining whether the plurality of proxy servers includes an IPv4 proxy server configured to handle IPv4 communications;
in response to determining that the plurality of proxy servers includes an IPv4 server:
selecting an IPv4 address of the IPv4 proxy server from the pool of IP addresses assigned to the plurality of proxy servers;
establishing, by the IPv4 proxy server, an IPv4 communications connections between the IPv4 proxy server and the target computer using the IPv4 address of the target computer and the IPv4 address of the IPv4 proxy server.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/071,558Filed 29 Nov 2022
Priority: 4 Feb 2021
Published: 23 Mar 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04L 61/251
Translation of Internet protocol [IP] addresses: between different IP versions
H04L 61/59
Network arrangements, protocols or services for addressing or naming: using proxies for addressing
H04L 61/10
Mapping addresses: of different types
H04L 61/4511
Using standardised directories; using standardised directory access protocols: using domain name system [DNS]

Family

Application17/167,474Continuation · filed 4 Feb 2021
Application18/071,558Continuation
US 11,522,826 B2Related patent
US 11,736,435 B2Related patent
US 2022/0247715 A1Published application
US 2023/0087327 A1This patent

From the US filing history. Foreign family members aren’t listed.