Communication apparatus, control method therefor, and computer-readable storage medium

摘要

In connection establishment processing in TCP communication, a next transmission destination IP address is decided by referring to a routing table. A next transmission destination MAC address associated with the next transmission destination IP address is decided by referring to the ARP table. The transmission destination IP address and the next transmission destination MAC address are stored as the connection management information in a connection management table. A transmission packet is created using the transmission destination IP address and the next transmission destination MAC address which are managed by the connection management information stored in the connection management table.

主权项

1. A communication apparatus which communicates with a terminal, which has a transmission destination IP address, as a packet transmission destination via a network, comprising:
a routing table configured to hold a next transmission destination IP address as route information; an ARP table configured to manage an IP address and a MAC address of the terminal on the network in association with each other; a connection management table configured to hold connection management information as information added to each connection in TCP communication; a route decision unit configured to decide a next transmission destination IP address by referring to said routing table in connection establishment processing in TCP communication; a MAC address decision unit configured to decide a next transmission destination MAC address associated with the next transmission destination IP address by referring to said ARP table; a storage unit configured to store the transmission destination IP address and the next transmission destination MAC address as the connection management information in said connection management table; and a creation unit configured to create a transmission packet using the transmission destination IP address and the next transmission destination MAC address which are managed by the connection management information stored in said connection management table.