Can't send DHCP options

[James]

I delete the dhclient.conf in /etc/dhcp3/ directory, and I find the dhclient
still CAN work.

Why? If I don't provide the dhclient.conf file, how does dhclient know what
to do?

-----Original Message-----
From: dhcp-users-bounce at isc.org [mailto:dhcp-users-bounce at isc.org] On Behalf
Of James
Sent: Friday, February 22, 2008 4:15 PM
To: dhcp-users at isc.org
Subject: Can't send DHCP options

 

Hi,

On ubuntu linux, I use dhclient to get IP address.

I add the following statements in the default configuration file
(/etc/dhcp3/dhclient.conf).

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

# DHCP option 125

option option-125 code 125 = string;

 

send option-125
00:00:0d:e9:26:01:06:30:30:31:41:32:41:02:0a:41:30:30:30:30:30:30:30:30:31:0
3:10:53:70:65:65:64:73:74:72:65:61:6d:20:33:36:31:30;

 

request subnet-mask, broadcast-address, time-offset, routers, domain-name,
domain-name-servers, host-name, netbios-name-servers, netbios-scope,
option-125;

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

I use [tcpdump -i eth0 -s 2000 -w /tmp/dhcp.dump &] to dump the dhcp
packets. The file is at [http://www.badongo.com/file/7925128]. I use
Wireshark to see the result.

I find:

1. The option-125 data isn't sent .

2. The requests of netbios-name-servers, netbios-scope and option-125
options aren't sent.

I also create a execute file 'dumpenv' in
'/etc/dhcp3/dhclient-enter-hooks.d' directory, and its content is [env >
/tmp/variables.txt].

I expect that I can get a 'variables.txt' in /tmp directory, but I don't
find this file.

What shuld I do?

Thank you.

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