Binding ip to mac in cisco?

Question

DHCP

Is there such a function in cisco (binding ip to mac all at once to which it has already issued addresses)

Answer 1

There is no such command directly, but you can consider two options depending on what you need:
1) static dhcp binding
2) static arp

Answer 2

There is also ip source guard, but it also works through dhcp snooping, you can set a static binding. Not all switches support! www.cisco.com/c/en/us/td/docs/switches/lan/catalys...

Answer 3

switchport port-security mac-address sticky
switchport port-security maximum [how_many_you_need]