If tracert cant identify the name of the router, it just lists the IP address. It also lists the name of the routers when it can identify them. Additional packets are sent for each router to calculate the round-trip time for that router. You will find Router IP Address listed in Subnet Mask Entry. The round-trip times are recalculated for each hop.

(ETA: What if you can't get to the Console port? How do you get the IP address of the switch in order to SSH or (if you must) Telnet in?)Ĭouldn't you just use CDP? #show cdp nei detail will show you the ip of the connected devices. To find IP Address of Router on Mac, open System Preferences and click on the Network option. If no command line options are specified, all ARP entries are displayed. The amazing thing to me is, this far into the 21st Century, this is still the only way I could find to get this information - i.e. arp Syntax arpip-int-name ip-address/mask macieee-mac-address summary local dynamic static managed Context show>router Description This command displays the router ARP table sorted by IP address. Also, 'sh ip arp | i 0/24' will show just the MAC address(es) on that port.) ifconfig under Linux will tell you, and also on Mac OS X (command line), and in the GUI: Network preferences, select wireless, advanced (right below) and TCP/IP tab, router entry.

If you're all Cisco, 'show cdp neighbor' (or 'sh cdp nei') will get you to the next switch. IPCONFIG /ALL (in a command line in Windows) will tell you under the heading Default Gateway. (Small tip: When you see a large number of MAC addresses showing up on a single port, there's a switch on that port into which those MAC addresses are connected. It helps to Ping the subnet's broadcast address (e.g. Step 1: Connect to your Cisco Devices Step 2: Find The MAC Addresses Step 3: Find the IP Address Step 4: Filtering the results on a Router Step 5: Filtering. :^D After beating Google to death over it, hoping for some useful tool, I ended up using exactly the same process (plus the online MAC address lookup to ID the device manufacturer), so I can affirm this works perfectly, if you work it.Īs you can see, the 'sh arp' or 'sh ip arp' commands also give you the MAC addresses, so essentially the 'sh mac add' is only to get the port in which the device is connected. Thanks for posting this *after* I finished a 'What's Connected Where' jihad on our network.

How to find router ip mac