On 01/28/2010 12:40 AM, Ed Greshko wrote:
> Philip A. Prindeville wrote:
>
>> Hi.
>>
>> I'm running FC12, updated on x86_64 hardware.
>>
>> My dhcp server is expecting my client (the FC12 box) to send a request with:
>>
>> option dhcp-client-identifier 01:XX:XX:XX:XX:XX
>>
>> where XX:XX:XX:XX:XX:XX is the MAC address, and 01 is the type-code for
>> Ethernet.
>>
>> Unfortunately, by default Fedora omits this option in the request.
>>
>> Is there an easy way to do this? Like:
>>
>> interface "eth0" {
>> send dhcp-client-identifier hardware;
>> }
>>
>>
>> for instance?
>>
>>
>>
> man dhclient.conf
>
> Shows as a sample....
>
> interface "ep0" {
> send host-name "andare.fugue.com";
> send dhcp-client-identifier 1:0:a0:24:ab:fb:9c;
> send dhcp-lease-time 3600;
> supersede domain-search "fugue.com rc.vix.com home.vix.com"
>
>
>
Yes, I too can RTFM.
I didn't want to have a literal client-identifier, because I have too
many hosts to manage.
man dhcp-eval says:
The Internet Systems Consortium DHCP client and server both provide the
ability to perform conditional behavior depending on the contents of
packets they receive.
and:
hardware
The hardware operator returns a data string whose first element is
the type of network interface indicated in packet being considered,
and whose subsequent elements are client’s link-layer address. [...]
but when I try this, I get:
Jan 28 09:03:35 builder dhclient[25694]: /etc/dhcp/dhclient.conf line 4: expecting string or hexadecimal data.
Jan 28 09:03:35 builder dhclient[25694]: #011send dhcp-client-identifier hardware;
Jan 28 09:03:35 builder dhclient[25694]: ^
Jan 28 09:03:35 builder dhclient[25694]: /etc/dhcp/dhclient.conf line 4: expecting a statement.
Jan 28 09:03:35 builder dhclient[25694]: #011send dhcp-client-identifier hardware;
Jan 28 09:03:35 builder dhclient[25694]: ^
Jan 28 09:03:35 builder dhclient[25694]: /etc/dhcp/dhclient.conf line 5: semicolon expected.
Jan 28 09:03:35 builder dhclient[25694]:
Jan 28 09:03:35 builder dhclient[25694]: ^
Jan 28 09:03:35 builder dhclient[25694]: /etc/dhcp/dhclient.conf line 5: unterminated interface declaration.
Jan 28 09:03:35 builder dhclient[25694]:
Jan 28 09:03:35 builder dhclient[25694]: ^
So it's not clear to me from the manual where you can have a dynamic
expression, and where you're required to have a literal.
-Philip
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