Method and apparatus for domain name service request resolution

A method for resolving a Domain Name Service (DNS) request having a domain name query and a destination addressing in a gateway with more than one accessible network, each accessible network having a domain name, the method including:

• comparing the domain name query of the DNS request to the domain name of each accessible network;
• altering the DNS request so that the destination address of the DNS request corresponds to a DNS server within the first matching accessible network if an accessible network is found whose domain name matches the domain name query;
• forwarding the DNS request to the first matching accessible network if an accessible network is found whose domain name matches the domain name query;
• and
• forwarding the unaltered DNS request to the largest accessible network unaltered if none of the domain names of the accessible networks match the domain name query of the DNS request.

A gateway capable of resolving a Domain Name Service (DNS) request having a domain name query and a destination address, the gateway including:

• a list of currently accessible networks and their corresponding domain names;
• a domain name query comparator coupled to said list;
• a DNS request alterer coupled to said list and to said domain name query comparator if an accessible network is found whose domain name matches the domain name query;
• a DNS request forwarder coupled to said domain name query comparator if none of the domain names of said accessible networks match the domain name query of the DNS request;
• said DNS request forwarder further coupled to said DNS request alterer if an accessible network is found whose domain name matches the domain name query;
• said DNS request forwarder further coupled to the first matching network if an accessible network is found whose domain name matches the domain name query;
• said DNS request forwarder further coupled to a default network if none of the domain names of said accessible networks match the domain name query of the DNS request.

A gateway capable of resolving a Domain Name Service (DNS) request having a domain name query and a destination address, the gateway including:

• a list of currently accessible networks and their corresponding domain names;
• a domain name query comparator coupled to said list;
• a DNS request alterer coupled to said list and to said domain name query comparator if an accessible network is found whose domain name matches the domain name query;
• a DNS request forwarder coupled to said domain name query comparator if none of the domain names of said accessible networks match the domain name query of the DNS request;
• said DNS request forwarder further coupled to said DNS request alterer if an accessible network is found whose domain name matches the domain name query;
• said DNS request forwarder further coupled to the first matching network if an accessible network is found whose domain name matches the domain name query;
• said DNS request forwarder further coupled to the largest accessible network if none of the domain names of said accessible networks match the domain name query of the DNS request.

A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps for resolving a Domain Name Service (DNS) request having a domain name query and a destination address in a gateway with more than one accessible network, each accessible network having a domain name, said method steps comprising:

• comparing the domain name query of the DNS request to the domain name of each accessible network;
• altering the DNS request so that the destination address of the DNS request corresponds to a DNS server within the first matching accessible network, if an accessible network is found whose domain name matches the domain name query;
• forwarding the DNS request to said first matching accessible network if an accessible network is found whose domain name matches the domain name query;
• and
• forwarding the unaltered DNS request to a network specified by a user if none of the domain names of the accessible networks match the domain name query of the DNS request.

A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps for resolving a Domain Name Service (DNS) request having a domain name query and a destination address in a gateway with more than one accessible network, each accessible network having a domain name, said method steps comprising:

• comparing the domain name query of the DNS request to the domain name of each accessible network;
• altering the DNS request so that the destination address of the DNS request corresponds to a DNS server within the first matching accessible network if an accessible network is found whose domain name matches the domain name query;
• forwarding the DNS request to the first matching accessible network if an accessible network is found whose domain name matches the domain name query;
• and
• forwarding the unaltered DNS request to the largest accessible network unaltered if none of the domain names of the accessible networks match the domain name query of the DNS request.