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Daniel Teixeira

2006-Nov-24 19:04 UTC

[CentOS] dhcpd

Hi
im trying to configure centos to run as a dhcpd daemon but it simply doesnt
work
 
I'm using the default configuration file from dhcdp (and tried multiple
alternatives).
 
problem is that pxe clients do not aquire dhcp addresses
in the log i can see that there are 3 or 4 dhcp offers  per boot atempt but
no dhcp requests
 
anyone?
 
i'm going crazy here... .i've tryed 3 diferent machines (servers) and 4
or 5
diferent clients
sometimes windows clients are able to catch the ip but only sometimes.
 
 
maybe this is a route problem?
 
the  machine(s) was freshly installed with centos 4.3
 
 
please advise!
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Daniel Teixeira

2006-Nov-24 20:09 UTC

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[CentOS] dhcpd

sorry... i've finaly figured out
dhcpd needs a working dns server or entries in the hosts file
 
no comments.
 

  _____  

From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
Behalf
Of Daniel Teixeira
Sent: sexta-feira, 24 de Novembro de 2006 19:04
To: 'CentOS mailing list'
Subject: [CentOS] dhcpd


Hi
im trying to configure centos to run as a dhcpd daemon but it simply doesnt
work
 
I'm using the default configuration file from dhcdp (and tried multiple
alternatives).
 
problem is that pxe clients do not aquire dhcp addresses
in the log i can see that there are 3 or 4 dhcp offers  per boot atempt but
no dhcp requests
 
anyone?
 
i'm going crazy here... .i've tryed 3 diferent machines (servers) and 4
or 5
diferent clients
sometimes windows clients are able to catch the ip but only sometimes.
 
 
maybe this is a route problem?
 
the  machine(s) was freshly installed with centos 4.3
 
 
please advise!
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Daniel Teixeira

2006-Nov-24 21:27 UTC

head link

[CentOS] dhcpd

sorry but this is really strange
 
my dhcpd daemon only works sometimes!!!!!!
 
the problem is the same as before
dhcpoffer is beeing sent but with no further actions
 
--------------my dhcpd.conf:
 

ddns-update-style             ad-hoc;
 
option subnet-mask            255.255.0.0;
option broadcast-address      10.0.255.255;
option routers                10.0.150.100;
option domain-name-servers    10.0.150.100;
option domain-name            "domain.lan";  
option option-128 code 128 = string;
option option-129 code 129 = text;
 
get-lease-hostnames           true;
 
next-server                   10.0.150.100;
option root-path              "10.0.150.100:/opt/ltsp/i386";
 
subnet 10.0.150.0 netmask 255.255.255.0 {
    range   10.0.150.200   10.0.150.254;
    if substring (option vendor-class-identifier, 0, 9) = "PXEClient"
{
        filename "/lts/2.6.16.1-ltsp-1/pxelinux.0";
    }
    else{
        filename "/lts/vmlinuz-2.6.16.1-ltsp-1";
    }
 
host teste {
   hardware ethernet 44:4d:50:e1:25:a9;
   fixed-address 10.0.150.234;
   }

----------ifcfg-eth0:
 
 
DEVICE=eth0
BOOTPROTO=none
BROADCAST=10.0.255.255
HWADDR=00:04:76:28:95:AB
IPADDR=10.0.150.100
NETMASK=255.255.0.0
NETWORK=10.0.0.0
ONBOOT=yes
TYPE=Ethernet
USERCTL=no
IPV6INIT=no
PEERDNS=yes
GATEWAY=10.0.0.1

 
 
 
 
---------route
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
10.0.0.0        *               255.255.0.0     U     0      0        0 eth0

 
PLEASE Help ! :-(

  _____  

From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
Behalf
Of Daniel Teixeira
Sent: sexta-feira, 24 de Novembro de 2006 19:04
To: 'CentOS mailing list'
Subject: [CentOS] dhcpd


Hi
im trying to configure centos to run as a dhcpd daemon but it simply doesnt
work
 
I'm using the default configuration file from dhcdp (and tried multiple
alternatives).
 
problem is that pxe clients do not aquire dhcp addresses
in the log i can see that there are 3 or 4 dhcp offers  per boot atempt but
no dhcp requests
 
anyone?
 
i'm going crazy here... .i've tryed 3 diferent machines (servers) and 4
or 5
diferent clients
sometimes windows clients are able to catch the ip but only sometimes.
 
 
maybe this is a route problem?
 
the  machine(s) was freshly installed with centos 4.3
 
 
please advise!
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Jim Perrin

2006-Nov-24 21:58 UTC

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[CentOS] dhcpd

> my dhcpd daemon only works sometimes!!!!!!
It smells like you need an authoritative statement for your dhcpd.conf.

This is done by adding the following to the top of your dhcpd.conf:

authoritative;


-- 
During times of universal deceit, telling the truth becomes a revolutionary act.
George Orwell

Nathan @ Netdigix Systems

2006-Nov-25 02:04 UTC

head link

[CentOS] dhcpd

possible you have some intermitten network issues?


Quoting Daniel Teixeira <dteixeira at bitecnica.com>:
> Hi
> im trying to configure centos to run as a dhcpd daemon but it simply doesnt
> work
>  
> I'm using the default configuration file from dhcdp (and tried multiple
> alternatives).
>  
> problem is that pxe clients do not aquire dhcp addresses
> in the log i can see that there are 3 or 4 dhcp offers  per boot atempt but
> no dhcp requests
>  
> anyone?
>  
> i'm going crazy here... .i've tryed 3 diferent machines (servers)
and 4 or 5
> diferent clients
> sometimes windows clients are able to catch the ip but only sometimes.
>  
>  
> maybe this is a route problem?
>  
> the  machine(s) was freshly installed with centos 4.3
>  
>  
> please advise!
> 



thanks,
-Nathan
-http://www.netdigix.net

Scott Silva

2006-Nov-25 02:22 UTC

head link

[CentOS] Re: dhcpd

Daniel Teixeira spake the following on 11/24/2006 1:27
PM:> sorry but this is really strange
>  
> my dhcpd daemon only works sometimes!!!!!!
>  
> the problem is the same as before
> dhcpoffer is beeing sent but with no further actions
>  
> --------------my dhcpd.conf:
>  
> 
> ddns-update-style             ad-hoc;
>  
> option subnet-mask            255.255.0.0;
> option broadcast-address      10.0.255.255;
> option routers                10.0.150.100;
> option domain-name-servers    10.0.150.100;
> option domain-name            "domain.lan";  
> option option-128 code 128 = string;
> option option-129 code 129 = text;
>  
> get-lease-hostnames           true;
>  
> next-server                   10.0.150.100;
> option root-path              "10.0.150.100:/opt/ltsp/i386";
>  
> subnet 10.0.150.0 netmask 255.255.255.0 {
>     range   10.0.150.200   10.0.150.254;
>     if substring (option vendor-class-identifier, 0, 9) =
"PXEClient" {
>         filename "/lts/2.6.16.1-ltsp-1/pxelinux.0";
>     }
>     else{
>         filename "/lts/vmlinuz-2.6.16.1-ltsp-1";
>     }
>  
> host teste {
>    hardware ethernet 44:4d:50:e1:25:a9;
>    fixed-address 10.0.150.234;
>    }
> ----------ifcfg-eth0:
>  
>  
> DEVICE=eth0
> BOOTPROTO=none
> BROADCAST=10.0.255.255
> HWADDR=00:04:76:28:95:AB
> IPADDR=10.0.150.100
> NETMASK=255.255.0.0
> NETWORK=10.0.0.0
> ONBOOT=yes
> TYPE=Ethernet
> USERCTL=no
> IPV6INIT=no
> PEERDNS=yes
> GATEWAY=10.0.0.1
>  
>  
>  
>  
> ---------route
> Destination     Gateway         Genmask         Flags Metric Ref    Use
> Iface
> 10.0.0.0        *               255.255.0.0     U     0      0        0
eth0
>  
> PLEASE Help ! :-(
> 
> ------------------------------------------------------------------------
> *From:* centos-bounces at centos.org
> [mailto:centos-bounces at centos.org] *On
> Behalf Of *Daniel Teixeira
> *Sent:* sexta-feira, 24 de Novembro de 2006 19:04
> *To:* 'CentOS mailing list'
> *Subject:* [CentOS] dhcpd
> 
> Hi
> im trying to configure centos to run as a dhcpd daemon but it simply
> doesnt work
>  
> I'm using the default configuration file from dhcdp (and tried multiple
> alternatives).
>  
> problem is that pxe clients do not aquire dhcp addresses
> in the log i can see that there are 3 or 4 dhcp offers  per boot atempt
> but no dhcp requests
>  
> anyone?
>  
> i'm going crazy here... .i've tryed 3 diferent machines (servers)
and 4
> or 5 diferent clients
> sometimes windows clients are able to catch the ip but only sometimes.
>  
>  
> maybe this is a route problem?
>  
> the  machine(s) was freshly installed with centos 4.3
>  
>  
> please advise!I don't think the ad-hoc ddns updates will work without the proper keys for
rndc included.

-- 

MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!

Will McDonald

2006-Nov-27 02:15 UTC

head link

[CentOS] dhcpd

On 24/11/06, Daniel Teixeira <dteixeira at bitecnica.com>
wrote:>
> sorry but this is really strange
>
> my dhcpd daemon only works sometimes!!!!!!
>
> the problem is the same as before
> dhcpoffer is beeing sent but with no further actions
I'd recommend avoiding RTF/HTML mails to mailing lists, they're
generally frowned upon. As is top-posting. Just a friendly prod, I
don't mind as-such but I know if irks a lot of people.

Is your problem specific to a particular hardware platform? I've had
IBM systems that have caused me all sorts of headaches when Dell kit
has been fine and vice versa. Does upping the logging on the TFTPd
give you any additional information?

What about the other VTYs when you're netbooting a "client"?

Will.

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