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How to scan IP of interface VLAN band on Cisco switch

JUNHOLEE95720
Beginner
Beginner

Hi

 

'show arp' shows the IP and port registered in the arp table.

Is there a command to scan the IPs of the devices connected to the switch like the application program IPSCAN?

 

Thanks

1 Accepted Solution

Accepted Solutions

in which case the device is configured to not respond to broadcast ICMP. You will need to ping all of the unicast IP addresses in the subnet, for which there is not a command on CLI. The only other option would be to use some sort of scripting like the built in EEM service. Better still, if you are using a cisco device with guest shell you could write a small python script which would take the subnet ID and netmask as an argument and loop through each IP address outputting the ping response.

 

cheers,

Seb.

View solution in original post

3 Replies 3

Seb Rupik
VIP Alumni
VIP Alumni

Hi there,

Have you tried pinging the broadcast address of the subnet?

 

cheers,

Seb.

Hi

 

Yes, I couldn't find the IP simply by pinging the broadcast address.
I am wondering if there are any additional settings that need to be made.

 

Thanks

in which case the device is configured to not respond to broadcast ICMP. You will need to ping all of the unicast IP addresses in the subnet, for which there is not a command on CLI. The only other option would be to use some sort of scripting like the built in EEM service. Better still, if you are using a cisco device with guest shell you could write a small python script which would take the subnet ID and netmask as an argument and loop through each IP address outputting the ping response.

 

cheers,

Seb.

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