Check old DHCP leases logs in HPE 5400R zl2

[Mahnoor]

How can I check my old dhcp leases logs in HP 5400R zl2 switch? (“show dhcp-server binding” command only shows current leases)

[parnassus]

Well the show dhcp-server command, when issued with proper [binding|conflicts|database|statistics|pool <POOL-NAME>] options (as you did), can be used to report (active) DHCP IPv4 Server bindings, DHCP IPv4 Server addressing conflicts, DHCP IPv4 Server IP Pool and DHCP IPv4 Server database informations and DHCP IPv4 Server statistics...but DHCP IPv4 Server related Event Logs provide more informations (like "Dynamic binding for IP address %s is freed" which could provide you the information you need about expired and not renewed bindings).

[Mahnoor]

I have a syslog server configured on which I am able to receive other syslog messages (like any topology change etc) from HP 5400R zl2 switch but apparently no dhcp event logs are received on the server mentioned. How can I enable the dhcp event logs (prime purpose remains the same that is to log old dhcp bindings).