How to track the path of a packet through network equipment in a corporate network?

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Eugene2017-03-20 13:30:20

Network administration

Eugene, 2017-03-20 13:30:20

I want to track which, in what order, switches, and then the router passes packets from my computer to, for example, the provider's router. We are talking about the corporate network, of course. This is real? tracert can't do that.
Maybe I'm formulating it incomprehensibly ... As a result, a diagram of this kind should be drawn:
Computer -> switch01 -> switch02 -> switch03 -> router04 ---------> ISP router.

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3 answer(s)

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Wexter, 2017-03-20
@Wexter

ask the admin for a wiring diagram

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Viktor Belsky, 2017-03-20
@Belyj

Tracing will cope with routers. With switches - worse. You can try to extract information from dhcp option 82, and look at the hardware, which switches, which port are connected to it (this is if cdp or lldp is enabled), or you can shovel the mac table not for every switch.

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Valentin, 2017-03-20
@vvpoloskin

A standard user has no way to find out which switch he is connected to and even more so to track the entire chain of switches. The easiest and legal option for you is to trace the lace (walk along it with your feet) and find out which tag is written on the switch. However, if you have managed switches and your admin can install wireshark and see what arrives there via CDP / LLDP, this way you will find out the switch closest to you (hostname + MAC).
The ISP router will show the trace (if it is open). You just need to do whois to the first public IP address in the utility's output chain.