Capture packets on Asus router

Question

I have Asus RT-AC87U router in my home network. I would like to analyse packets on specific ports like Wireshark does. Is it possible to build such system that could make traffic going trough router analysis? How?

Solution

First things first, you need to enable ssh access on your router. Someone asked a question regarding this here

Once you have your ssh setup done, you can connect to your user via SSH using a Linux VM or Putty or any other tool that supports ssh. You can then use the tcpdump utility to scan packets. Example of tcpdump commands :

Scan on all interfaces (-i any) any traffic that has source or desto as 123.123.123.123
tcpdump -i any host 123.123.123.123

Scan on interface eth0 for any traffic going through port 443
tcpdump -i eth0 port 443

Let me know if you need help with the tcpdump utility.

Comments

[HCSF]

Thanks for the pointer. How can I install tcpdump on the router?