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Dhcp reservation : client-identifier dissapearing

Hi,i want to make a reservation on my dhcp.I`ve done several hundred times but this time the line "client-identifier" just dissapears when the pc is requesting the ip address.

Configuration BEFORE the DHCP REQUEST

ip dhcp pool 76test

   host 192.168.15.76 255.255.255.0

   client-identifier 0100.242c.a12e.b2

    dns-server 192.168.1.240

   default-router 192.168.15.1

--------------------------------

Client requests the IP

*Mar  7 18:18:29.427: DHCPD: client's VPN is .

*Mar  7 18:18:29.427: DHCPD: DHCPDISCOVER received from client 0100.242c.a12e.b2 on interface Vlan1.

*Mar  7 18:18:29.431: DHCPD: removing ARP entry (192.168.15.76 vrf default).

*Mar  7 18:18:29.431: DHCPD: Saving workspace (ID=0x7300001D)

*Mar  7 18:18:31.431: DHCPD: Reprocessing saved workspace (ID=0x7300001D)

*Mar  7 18:18:31.431: DHCPD: DHCPDISCOVER received from client 0100.242c.a12e.b2 on interface Vlan1.

*Mar  7 18:18:31.431: DHCPD: Sending DHCPOFFER to client 0100.242c.a12e.b2 (192.168.15.38).

*Mar  7 18:18:31.431: DHCPD: ARP entry exists (192.168.15.38, 0024.2ca1.2eb2).

*Mar  7 18:18:31.431: DHCPD: unicasting BOOTREPLY to client 0024.2ca1.2eb2 (192.168.15.38).

*Mar  7 18:18:31.431: DHCPD: removing ARP entry (192.168.15.38 vrf default).

*Mar  7 18:18:31.435: DHCPD: client's VPN is .

*Mar  7 18:18:31.435: DHCPD: DHCPREQUEST received from client 0100.242c.a12e.b2.

*Mar  7 18:18:31.435: DHCPD: No default domain to append - abort update

*Mar  7 18:18:31.435: DHCPD: Sending DHCPACK to client 0100.242c.a12e.b2 (192.168.15.38).

*Mar  7 18:18:31.435: DHCPD: creating ARP entry (192.168.15.38, 0024.2ca1.2eb2, vrf default).

*Mar  7 18:18:31.435: DHCPD: unicasting BOOTREPLY to client 0024.2ca1.2eb2 (192.168.15.38).

Configuratio AFTER

ip dhcp pool 76test

   host 192.168.15.76 255.255.255.0

   dns-server 192.168.1.240

   default-router 192.168.15.1

As you can see the line with " client-identifier 0100.242c.a12e.b2" dissapears.

Any thoughts ?

Thanks

  • LAN Switching and Routing
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