<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Fri, May 4, 2018 at 1:09 PM, jsf <span dir="ltr"><<a href="mailto:jfreeman@gmail.com" target="_blank">jfreeman@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi friends,<div><br></div><div>I am IT dir. at a small independent school in CT nowadays. I have a comcast modem. my firewall plugs into a wired port in the comcast modem. I have an old PC running windows 8.1. I have installed wireshark on the old PC. I have plugged the old PC's network interface into another wired port on the comcast modem. Ideally I would like to use wireshark to capture EVERYTHING going across the modem - basically everything that is going in and out of the connection between the modem and my firewall. I am at a loss w/r/t how to set this up properly.</div></div></blockquote><div><br></div><div> That'd be doing it wrong, and you'd be looking at a giant list of spaghetti.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>I am trying to get a sense regarding the schools' bandwidth usage.. we have 150/25 over coax. i think performance is pretty good most of the time (we are a small school).. but not everyone agrees with me. If we have too little bandwidth (are hitting a max periodically) I'd like to know that.<br></div><div><br></div><div>Thanks in advance for help with this and recommendations about anything else I should put on this old PC to help with this exercise.</div></div></blockquote><div><br></div><div> It's best to be looked at from the firewalls perspective. What are you using for a firewall? Is it up to the task to NAT the number of sessions it is likely having to NAT? The first place I would look would be the firewall itself. Many times, a cheap/underpowered firewall is the cause of crappy speeds, and not the network itself.</div><div><br></div><div> Thomas</div><div> </div></div>
</div></div>