dhcp manual bindin with macbook pro

[payala]

Hello there,

I hope that you can help me. I'm trying to configure a manual binding with a macbook pro but I have no idea why is not working...

This is the configuration that I have configured:

rtr#show run | sec ip dhcp pool MBP
ip dhcp pool MBP
   host 192.168.1.5 255.255.255.0
   client-identifier 01d8.a25e.945a.b3
   default-router 192.168.1.1
   dns-server 8.8.8.8 8.8.4.4 200.33.146.197 200.33.146.201
rtr#

The problem is that I'm receiving the ip address of the global dhcp pool:

rtr#show run | sec ip dhcp pool Wireles
ip dhcp pool Wireless-Clients
   network 192.168.1.0 255.255.255.0
   dns-server 8.8.8.8 8.8.4.4 200.33.146.197 200.33.146.201
   default-router 192.168.1.1
rtr#

This is the output from the debug ip dhcp event:

rtr#
Dec  8 07:37:48.497: DHCPD: DHCPREQUEST received from client 01d8.a25e.945a.b3.
Dec  8 07:37:48.497: DHCPD: Sending notification of ASSIGNMENT:
Dec  8 07:37:48.497:  DHCPD: address 192.168.1.25 mask 255.255.255.0
Dec  8 07:37:48.497:   DHCPD: htype 1 chaddr d8a2.5e94.5ab3
Dec  8 07:37:48.497:   DHCPD: lease time remaining (secs) = 86400
Dec  8 07:37:48.497: DHCPD: Appending system default domain
Dec  8 07:37:48.497: DHCPD: Using hostname 'payala.ayasar.com.' for dynamic update (from hostname option)
Dec  8 07:37:48.497: DHCPD: Sending DHCPACK to client 01d8.a25e.945a.b3 (192.168.1.25).
Dec  8 07:37:48.497: DHCPD: creating ARP entry (192.168.1.25, d8a2.5e94.5ab3).
rtr#
Dec  8 07:37:48.497: DHCPD: unicasting BOOTREPLY to client d8a2.5e94.5ab3 (192.168.1.25).
rtr#

I tried with hardware-address and client-identifier with the same result...

Hope that someone can help me!!!

Thanks a lot and have a nice day

[cadet alain]

Hi,

In your static pool change client-identifier 01d8.a25e.945a.b3 with hardware-address d8a2.5e94.5ab3

Regards.

[payala]

Hello cadetalin and thanks for your reply. I already tried that with the same result. I read in Cisco that when you use a differnet OS than Windowns you should use hardware-address... Actually I have other manual binding configured on the device with windows as OS and that works just great!!!

I have no idea what I'm missing or what should I configure besides what is already configured... :S

Thanks a lot!!!

[cadet alain]

Isn't this address already leased? do a show ip dhcp binding x.x.x.x  where x.x.x.x is the ip add you want to give your host.

Regards.

[payala]

Cadetalain,

Thanks again for the reply.

Let me send you what you asked and more information that can help:

rtr#show run | sec ip dhcp pool MBP
ip dhcp pool MBP
   host 192.168.1.5 255.255.255.0
   hardware-address 01d8.a25e.945a.b3
   default-router 192.168.1.1
   dns-server 8.8.8.8 8.8.4.4 200.33.146.197 200.33.146.201
   client-name payala
rtr#show ip dhcp binding 192.168.1.5
IP address          Client-ID/             Lease expiration        Type
            Hardware address/
            User name
192.168.1.5         01d8.a25e.945a.b3       Infinite                Manual
rtr#show ip dhcp binding    
Bindings from all pools not associated with VRF:
IP address          Client-ID/             Lease expiration        Type
            Hardware address/
            User name
192.168.1.5         01d8.a25e.945a.b3       Infinite                Manual
192.168.1.11        0170.1a04.1a8a.df       Infinite                Manual
192.168.1.12        0100.0c29.b7e1.49       Infinite                Manual
192.168.1.25        01d8.a25e.945a.b3       Dec 09 2010 09:51 AM    Automatic
192.168.1.26        01d8.a25e.7737.51       Dec 09 2010 01:31 PM    Automatic
192.168.1.27        0178.e400.5a9e.53       Dec 09 2010 02:02 PM    Automatic
192.168.3.5         0007.e9d1.ee9c          Infinite                Manual
rtr#

The MBP is receiving the next ip address 192.168.1.25, let me send you the show ip arp:

rtr#show ip arp 192.168.1.25
Protocol  Address          Age (min)  Hardware Addr   Type   Interface
Internet  192.168.1.25           11   d8a2.5e94.5ab3  ARPA   FastEthernet0/0.1
rtr#

Greetings!!!

[cadet alain]

ok,

so shut down your dhcp server interface then clear ip dhcp binding *, next change hardware-address 01d8.a25e.945a.b3 statement by

hardware-address d8.a25e.945a.b3

release DHCP binding on MBP then reopen interface of router and renew  DHCP binding on MPB.

Regards.

[payala]

Same result!!! :S

I have no idea what is missing. Just one thing, when you asked me to configure the command hardware-address d8.a25e.945a.b3 it changed it automatically to the XXXX.XXXX.XXXX format, let me send you the output:

rtr#show run | sec ip dhcp pool MBP
ip dhcp pool MBP
   host 192.168.1.5 255.255.255.0
   hardware-address 01d8.a25e.945a.b3
   default-router 192.168.1.1
   dns-server 8.8.8.8 8.8.4.4 200.33.146.197 200.33.146.201
   client-name payala
rtr#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
rtr(config)#ip dhcp pool MBP
rtr(dhcp-config)#no hardware-address 01d8.a25e.945a.b3
rtr(dhcp-config)#hardware-address d8.a25e.945a.b3 
rtr(dhcp-config)#end
rtr#show run | sec ip dhcp pool MBP
ip dhcp pool MBP
   host 192.168.1.5 255.255.255.0
   hardware-address d8a2.5e94.5ab3
   default-router 192.168.1.1
   dns-server 8.8.8.8 8.8.4.4 200.33.146.197 200.33.146.201
   client-name payala
rtr#

I already reboot the device with the same result. I'm not sure that the Macbook have exactly the same RFC that uses Cisco on DHCP.

Thanks again

[cadet alain · Accepted solution]

Can you try same procedure with hardware-address d8a2.5e94.5ab3 and if it not working with client-identifier 01d8.a25e.945a.b3

Regards.

[payala]

I have no idea why when I configured again the client-identifier with 01 starts to work...

Thanks a lot for all your help!!! this was really helpful... So I need to use client-identifier with a differnet OS (not only with Windows)... I read that client-identifier was only with Windows...

Thanks again...