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Commands requests

Discussion in 'Tomato Firmware' started by Tippmann, Mar 27, 2012.

  1. Tippmann

    Tippmann Networkin' Nut Member

    Hi guys is there any commands on tomato like show cdp neigh detail (on cisco) all i want to know what is plug on every port of my router.
  2. koitsu

    koitsu Network Guru Member

    No. First off, CDP is only useful when other switches or devices/hosts on the network honour CDP protocol (CDP stands for Cisco Discovery Protocol; it's Cisco's proprietary protocol, compared to LLDP which is not Cisco-proprietary). See CDP and LLDP on Wikipedia for details. Windows, OS X, and Linux machines in general do not support either CDP or LLDP unless you install custom software to honour such. CDP/LLDP are for a different purpose.

    If you want to know "what is on every port on your router", the easiest way to determine that is by using "arp -a". This gets a little tricky though since Tomato and other firmwares tend to use kernel-level (software) VLANs to segregate portions of the switches (for example on most routers there is a 5-port switch; 4 ports are for your LAN, and one port is for your WAN (Internet). But the actual switch itself is 5-port. The segregation of ports is done via software VLANs).

    Once you have "arp -a" output, you can compare MAC addresses to that of what's on each machine's NIC. This will require you to get the MAC off of each machine on your LAN and write it down + make note of what the machine is. If a MAC address shows up on your list which you're not used to seeing, you can investigate it yourself.

    Tomato also offers the "Device List" GUI option which effectively does the same thing, letting you also determine if the MAC address seen is across the wifi interface or the LAN interface (wifi will have RSSI / signal strength indicators, while LAN will not).
  3. Tippmann

    Tippmann Networkin' Nut Member

    thank you so much very helpful information thanks a lot

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