11-18-2008 03:52 AM - edited 03-06-2019 02:32 AM
I learned that there are 2 ways for dhcp bindings configuration: a)client-identifier ; b)hardware-address
And also I noticed that "show ip dhcp bindings" shows me the MAC addresses in 2 ways: 1) 001c.bfa0.3aae and 2) 0100.1cbf.a03a.ae
I also noticed that if I use a) method I have the 1) output of the MAC , and method b) the output 2) .
Did I noticed correctly?
Why there are two ways for configuring dhcp bindings. This took me 3 days to configure a dhcp binding.
Note: I used till now method a) (all host conected through UTP); recently I connected a wireless laptop and it did not work, unless I used method b).
Can u explain those diffrences?
Thank u!
11-25-2008 07:20 AM
Client-Identifier
To specify a Microsoft Dynamic Host Configuration Protocol (DHCP) client's unique identifier (in dotted-hexadecimal notation), use the client-identifier DHCP pool configuration command.
client-identifier unique-identifier
The distinct identification of the client in dotted-hexadecimal notation, for example, 01b7.0813.8811.66.
Hardware-address
To specify the hardware address of a Dynamic Host Configuration Protocol (DHCP) client, use the hardware-address DHCP pool configuration command. It is valid for manual bindings only.
hardware-address hardware-address type
hardware-address: Specifies the MAC address of the client's hardware platform
type: Indicates the protocol of the hardware platform. Strings and values are acceptable. The string options are:
⢠ethernet
⢠ieee802
The value options are:
⢠1 10Mb Ethernet
⢠6 IEEE 802
If no type is specified, the default protocol is Ethernet
The following example specifies b708.1388.f166 as the MAC address of the client:
hardware-address b708.1388.f166
11-28-2008 12:35 AM
Don't be mad of me :D
I did not understand what u have said about hardware-address.
Let me tell what I did understand:
- if I have a microsoft dhcp client I have to use: client-identifier 01b7.0813.8811.66
- if I have other than microsoft dhcp client (let's say linux dhcp clients) I have to use: hardware-address b708.1388.f166 [type]
Is this right? I kind of noticed this behaviour.
I also used client-identifier with linux clients and it is working.
It is confusing for me. I did not see in any official cisco documentation the diffrence between those two dhcp parameters.
Thank u for reply!
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