(Network analysis is a powerful management tool for network managers, but network analysis is based on data packets, and data packet capture is a headache. On the one hand, it may be necessary to purchase corresponding equipment and increase additional costs; On the one hand, it is not very convenient to deploy a packet capture device at the Internet egress, because it involves two completely different but related data flows before and after address translation; and the firewall system is a gateway-type device. It is not only deployed at the Internet exit itself, but also participates in all data communication in the internal and external networks. Using the packet capture function of the TOS firewall, it can easily obtain all the data packets entering and leaving the Internet for network analysis. Provides great convenience!)
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