From: srdja blagojevic (srdja1@pexim.co.yu)
Date: Sat Nov 18 2006 - 06:27:48 ART
Kal,
you should not exclude 172.16.1.100 from DHCP pool.
Also, you should identify your client PC with Client-id, not with hardware
address. AFAIK hardware address identification works only with Cisco
clients, with others you should use client-id.
You can get client-id from mac address by just adding 01 in front of the mac
address:
MAC: 00a0.c981.bd9c => Client-id: 0100.a0c9.81bd.9c
You can also verify that your client is identified by this client-id, from
this line of your debug output:
>Nov 20 00:44:03.534: DHCPD: DHCPREQUEST received from client
0100.a0c9.81bd.9c.
hth,
Srdja
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Kal
Han
Sent: Saturday, November 18, 2006 02:09
To: Groupstudy; Cisco certification
Subject: DHCP question - manual binding
Hi
I want to create a dhcp pool and assign IPs from that pool.
But there is a server known by a name, for which I want to assign the same
IP everytime. ( which ever host machine is configured with that name, after
it reboots, that machine should get a specific IP )
eg,.
server name: filter-test8 ( mac-add = 00a0.c981.bd91 ) <--- this host
desired IP: 172.16.1.100 <---
this IP.
I tried to get this working but couldnt .. so far.
Here is my config.
ip dhcp excluded-address 172.16.1.1
ip dhcp excluded-address 172.16.1.12
ip dhcp excluded-address 172.16.1.100 <-------- should I exclude from the
pool ???
!
ip dhcp pool LAB5 <------------------only for the sake of this server
host 172.16.1.100 255.255.255.0
hardware-address 00a0.c981.bd91 ieee802
client-name filter-test8
default-router 172.16.1.1
!
ip dhcp pool ALL <----------------- my whole pool
import all
network 172.16.1.0 255.255.255.0
default-router 172.16.1.1
!
when I do the show IP dhcp bindings, I see ( looks correct ) Bindings from
all pools not associated with VRF:
IP address Client-ID/ Lease expiration Type
Hardware address/
User name
172.16.1.100 00a0.c981.bd91 Infinite Manual
*but when I reboot this pc, I am getting addresses from the pool* *(
172.16.1.2 to start with )*
**
my debug on the router shows some thing like this If you look at the bold
MAC address, I dont know what that is and where its coming from. the host
that requesting this should have a mac of 00a0.c981.bd91 ( which I
configured above )
Nov 20 00:43:52.470: DHCPD: checking for expired leases.
R2#
Nov 20 00:44:01.526: DHCPD: DHCPDISCOVER received from client *
0100.a0c9.81bd.9c* on interface FastEthernet0/1.
R2#
Nov 20 00:44:03.530: DHCPD: assigned IP address 172.16.1.3 to client *
0100.a0c9.81bd.9c*.
Nov 20 00:44:03.530: DHCPD: Sending DHCPOFFER to client *0100.a0c9.81bd.9c*(
172.16.1.3).
Nov 20 00:44:03.530: DHCPD: creating ARP entry (172.16.1.3, *00a0.c981.bd9c*
).
Nov 20 00:44:03.530: DHCPD: unicasting BOOTREPLY to client 00a0.c981.bd9c (
172.16.1.3).
Nov 20 00:44:03.534: DHCPD: DHCPREQUEST received from client
0100.a0c9.81bd.9c.
Nov 20 00:44:03.534: DHCPD: Sending DHCPACK to client 0100.a0c9.81bd.9c (
172.16.1.3).
Nov 20 00:44:03.534: DHCPD: creating ARP entry (172.16.1.3, 00a0.c981.bd9c).
Nov 20 00:44:03.534: DHCPD: unicasting BOOTREPLY to client 00a0.c981.bd9c (
172.16.1.3).
Please let me know whats wrong
Thanks
Kal
This archive was generated by hypermail 2.1.4 : Fri Dec 01 2006 - 08:05:47 ART