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Getting IP address of connected devices on 4800/4900 ERS switches

Getting IP address of connected devices on 4800/4900 ERS switches

Roc156
New Contributor

I have a few 4800 and 4900 switches. Is it possible to get the IP address of connected devices? The only way I can get any IP address of a device is for Avaya VoIP phones using the command show lldp neighbor med inventory.

10 REPLIES 10

Roc156
New Contributor

We normally set the dhc-snooping trusted on the trunk ports and to the PC VLAN.

ip dhcp-snooping vlan 100

interface ethernet 49-50
ip dhcp-snooping trusted

How would it affect if it is set to binding?

Martin_Sebek
New Contributor III

It depends on the switch configuration.  For example if you are using feature called dhcp-snooping you can get the binding table.

show ip dhcp-snooping binding

But of course only for clients who are using dynamic addresses.

Roc156
New Contributor

show lldp neighbors and sh mac-address-table only shows me MAC addresses. 

sh arp shows me the IP and MAC addresses of our cores which are ERS8810

Dilraj_Singh_Kh
Extreme Employee

To check the IPs for the end device, i guess "show lldp neighbors" would be the only way to check. You might can check the IPs using ARP table as well if that can help.

Roc156
New Contributor

 

It only shows IPs of connected switches not PCs.

GTM-P2G8KFN