Mac binding in layer 3 switche

[aus]

how i can mac bind in 3750x of ip phones. I have a 500 phones where all get ip address by subnet /23, is it possible to bind their mac through dhcp core server switche not a static on interfaces

[balaji.bandi]

yes possible, rather doing on switch, get DHCP Server and add reservation IP against MAC Address.

[aus]

Actually, I make a core switch vtp server and other are client and configure a core switch as a DHCP server. All ip phone have an ip address range is 172.16.10.0/23. But I want to bind their mac in core switch dynamically not a static

[balaji.bandi]

in that case example provided by @paul driver still valid.

[paul driver]

Hello
You don’t mention what you are using for dhcp allocation, so given this is a cisco forum I would go with cisco - LOL
You could use a dhcp origin file residing on a file share to accomplish this however I would envisage it would be quite an administrative task to keep on top of 500 entries!

example:
create a txt file Phone.txt
!IP address Type Hardware address Lease expiration
192.168.1.1/24 1 0011.1111.1111.11 Infinite
192.168.1.2/24 1 0022.2222.2222.22 Infinite
192.168.1.3/24 1 0033.3333.3333.33 Infinite

etc..
*end*
.

Cisco dhcp pool
no service dhcp < need to stop the dhcp servcie first if one is already running
ip dhcp pool LAN
origin file tftp://x.x.x./Phones.txt
servcie dhcp < re enable dhcp