Re: network installation ( dhcp problem)

[Alok Pandey <alok rhct gmail com>]

HI Ray,


I get your point but unfortunately  i have  no idea about how to 
configure switch and also it's not under my control.
Can you put some point in step , how to check this switches. also




Ray Van Dolson wrote:
> Anaconda still uses 'pump', which I definitely believe has some bugs.  There
> are situations where dhclient works fine, but pump fails on our network.
>   
Are you saying that during installation  time the dhcp request is made 
by PUMP and after when the machine get installed , it 's by dhclient . ??
Is their any way to customize the anaconda installer , so that it can 
use  dhclient instead of using pump.?

> What type of switch are you plugging into (if any)?  Might it have Spanning
> Tree enabled on the port?  This can cause a delay before the port comes up,
> and DHCP clients can time out before the port is truly active.
>   

> You can either, disable Spanning Tree, turn on Port Fast mode or try using the
> "nicdelay=XX" boot parameter where XX is a value in seconds that will "pause"
> hopefully giving you extra seconds to wait while Spanning Tree calcuations are
> being done.
>
>   
What be the max value of XX.
> Easy way to test if this is the problem is to plug your Ethernet cable that
> normally would run from your switch to your computer into a hub or "dumb"
> (unmanaged switch), and then go from that hub/switch to your computer.  If
> spanning tree is to blame, you should get a DHCP IP without problem.
>   
I  will try this , hope it  work.
> Disregard if you're not in an environment where you're using managed switches
> at all. :)
>
>   
> Ray
>
>   
What if its not be a switch problem.?? :-(
Then were do i look around for fault.? O:-)

Plz. go through the attachment for the details of dhcp configuration.

Thanks for you time RAY :-)
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>   
ddns-update-style interim;
ignore client-updates;
#allow bootp;
#allow booting;
subnet 192.168.0.0 netmask 255.255.255.0 {

# --- default gateway
	option routers			192.168.0.4;
	option subnet-mask		255.255.255.0;

	option nis-domain		"in.XX.com";
	option domain-name		"in.XX.com";
	option domain-name-servers	192.168.0.254;

	option time-offset		-18000;	# Eastern Standard Time
#	option ntp-servers		192.168.1.1;
#	option netbios-name-servers	192.168.1.1;
# --- Selects point-to-point node (default is hybrid). Don't change this unless
# -- you understand Netbios very well
#	option netbios-node-type 2;

	range dynamic-bootp 192.168.0.50 192.168.0.100;
	default-lease-time 21600;
	max-lease-time 43200;



# we want the nameserver to appear at a fixed address
	host H1 { hardware ethernet 00:14:85:72:18:22; fixed-address 192.168.0.254; option host-name "H1.in.XX.com";  }

	host H2 { hardware ethernet 00:e0:81:55:06:18; fixed-address 192.168.0.2; option host-name "H2.in.XX.com"; }


}