RE: hostname mapping issue !!

From: lee.proctor@bt.com
Date: Tue Mar 03 2009 - 05:50:23 ARST


Sounds to me like two subinterfaces/physical interfaces patched to a
switch. Is the client machine in the correct VLAN assigned to the scope
you require to use. And is the interface between the router and switch a
trunk (if subinterfaces are being used?).

i.e.

ip dhcp pool vlan2
   network 172.23.100.0 255.255.25
   default-router 172.23.100.254
   dns-server 194.72.0.98
!
ip dhcp pool vlan3
   network 172.16.1.0 255.255.255.0
   default-router 172.16.1.254
   option 150 ip 172.16.1.254
!

Clients in vlan2 on the switch will receive an IP address in the
172.23.100.x /24 range, whereas clients in vlan3 will get an address in
the 172.16.1.x /24 range.

The topology here is:

Router (fa0/0.2 and fa0/0.3) Physical Fa0/0 -> Switch (dot1q trunk) ->
Fa0/1

Fa0/2 switchport access vlan 2
Fa0/3 switchport access vlan 3

Hope this helps!

Lee

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Dale Shaw
Sent: 03 March 2009 02:10
To: george stanza
Cc: Cisco certification
Subject: Re: hostname mapping issue !!

Hi George,

On Tue, Mar 3, 2009 at 12:26 PM, george stanza <cert2006@gmail.com>
wrote:
> experts,
>
> i have a question on DNS usage. In my network, my host (which is
> connected to the router) always gets a ip address from 145.x.y.z
> address pool. As a result i am not able use my 12.a.b.c network. How
> do i make sure that the hosts that are connected infact uses 12.a.b.c
> network rather then 145.x.y.z while connected to the network ?

Do you have two DHCP scopes configured?

Please provide your configuration to help clarify the scenario.

cheers,
Dale

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