Command to know the Network Switch IP

Question

I'm using the below Network Switch:

HPE ProCurve J8697A Switch 5406zl
Software Revision K.14.34

I'm advised to execute the below command to know my network switch IP:

tcpdump -i net0 ether proto 0x88cc -v -c 5

It is showing the following output but not executing completely and getting stuck there:

dropped privs to nobody
tcpdump: listening on net0, link-type EN10MB (Ethernet), capture size 262144 bytes

On giving Ctrl+C, it shows below output:

root@solaris:~# tcpdump -i net0 ether proto 0x88cc -v -c 5
dropped privs to nobody
tcpdump: listening on net0, link-type EN10MB (Ethernet), capture size 262144 bytes
^C
0 packets captured
607908 packets received by filter
0 packets dropped by kernel
root@solaris:~#

What is this command doing? Why is it not giving the expected output and is there any other command to know the same?

Solution

I guess you can, if you are connected to a host which is directly wired to the switch, do a :

ping -b <yourBroadcastAddress>

Chances are only the switch will answer as it will, most likely, depending on the brand of the switch and configuration, block broadcast ping from being forwarded.

Comments

[Amit24x7]

I know my gateway IP already. The switch IP is one from which I'll be able to access my network switch as I'm to change few configurations like VLANs and LACP.

[Amit24x7]

For your kind information, the IP address is already been configured by DHCP server. Unfortunately, the infrastructure is a remote setup so we can't reconfigure it by physical connection and to do telnet we need that IP which is not known to us.

[dirkt]

It would have been nice to have this information in the question ... see edit.

[Amit24x7]

It is giving me a list of IPs, out of which the last IP is my switch IP. Thanks