Network address mapping for communications between hosts and storage nodes in different networks

A computer program product comprising a non-transitory processor-readable storage medium having stored therein program code of one or more software programs, wherein the program code when executed by at least one processing device comprising a processor coupled to a memory, causes the at least one processing device:

• to determine, as part of a network discovery process for at least one host device operating in a first network which accesses at least one storage node of a storage system operating in a second network, a network address mapping data structure comprising one or more mappings between a first set of one or more network addresses in the first network and a second set of one or more network addresses in a second network;
• to associate at least one of the one or more mappings in the network address mapping data structure with an identifier of the at least one host device operating in the first network;
• to obtain, at an endpoint service of the storage system operating in the second network, one or more communications to be exchanged between the at least one host device operating in the first network and the at least one storage node operating in the second network;
• to modify, by the endpoint service of the storage system operating in the second network, the one or more communications based at least in part on at least one of the one or more mappings in the network address mapping data structure which is associated with the identifier of the at least one host device operating in the first network;
• and
• to provide the modified one or more communications from the endpoint service of the storage system operating in the second network to an inter-network link between the first network and the second network;
• wherein the one or more communications comprise at least one packet having a header and a payload;
• and
• wherein modifying the one or more communications comprises performing translation for instances of at least one of (i) one or more of the first set of one or more network addresses in the first network that are present in the payload of the at least one packet and (ii) one or more of the second set of one or more network addresses in the second network that are present in the payload of the at least one packet.

A method comprising:

• determining, as part of a network discovery process for at least one host device operating in a first network which accesses at least one storage node of a storage system operating in a second network, a network address mapping data structure comprising one or more mappings between a first set of one or more network addresses in the first network and a second set of one or more network addresses in a second network;
• associating at least one of the one or more mappings in the network address mapping data structure with an identifier of the at least one host device operating in the first network;
• obtaining, by an endpoint service of the storage system operating in the second network, one or more communications to be exchanged between the at least one host device operating in the first network and the at least one storage node operating in the second network;
• modifying, by the endpoint service of the storage system operating in the second network, the one or more communications based at least in part on at least one of the one or more mappings in the network address mapping data structure which is associated with the identifier of the at least one host device operating in the first network;
• and
• providing the modified one or more communications from the endpoint service of the storage system operating in the second network to an inter-network link between the first network and the second network;
• wherein the one or more communications comprise at least one packet having a header and a payload;
• wherein modifying the one or more communications comprises performing, by the endpoint service of the storage system operating in the second network, translation for instances of at least one of (i) one or more of the first set of one or more network addresses in the first network that are present in the payload of the at least one packet and (ii) one or more of the second set of one or more network addresses in the second network that are present in the payload of the at least one packet;
• and
• wherein the method is performed by at least one processing device comprising a processor coupled to a memory.