Hi, If I am measuring network usage from a PC (using Wireshark or Network Monitor for example) for traffic going out to internet through a proxy server, how can I measure (estimate) the amount of internet usage (i.e. from the proxy server's point of view) from the PC? . For example: (a) which packets should be included when summing up usage (e.g. HTTP, TCP, TLS etc), and (b) within each packet, say a HTTP one, what size to use (e.g. Overall Frame Length, Ipv4 Total Length, HTTP Content Length) Perhaps for example, the answer may be to only sum the HTTP packets, and also from these packets only use the HTTP Content Length? thanks