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From: mgpprasa on 14 Apr 2008 07:03
I have a ciso 1841 router as a DHCP server. It has the following pool
ip dhcp pool switch
host 192.50.201.50 255.255.255.0
client-identifier 0100.1e14.a2dc.00 ( id of the 2960 cisco switch. I
added 01 infront to the MAC)

The switch do not get an ip from the DHCP Server(CIsco 1841)

I ran "debug ip dhcp server event" & "debug ip dhcp server packet"
Then removed the cable which connects the switch and the router and
pluged again.
But the console do not show that the switch issues a dhcp request with
its client identifier.



f0/24 is a trunk port. switch get connected to the routers f0/0 port
through switch f0/24 port.

The switch has 2 VLANs.
PCs connected to these vlans get the ips through DHCP server(CIsco
1841).There are other 2 pools defined in the router for these 2 vlans.


Please help me.
From: News Reader on 14 Apr 2008 11:52
mgpprasa(a)gmail.com wrote:
> I have a ciso 1841 router as a DHCP server. It has the following pool
> ip dhcp pool switch
> host 192.50.201.50 255.255.255.0
> client-identifier 0100.1e14.a2dc.00 ( id of the 2960 cisco switch. I
> added 01 infront to the MAC)

The 01 indicates the media type (Ethernet). Client-identifiers are used
for Microsoft DHCP clients. Your switch is not a Microsoft client. You'd
likely use:
hardware-address <hardware-address> <type>

e.g.: hardware-address aaaa.bbbb.cccc ieee802

>
> The switch do not get an ip from the DHCP Server(CIsco 1841)
>

Presumably you are trying to assign an address to a VLAN interface via DHCP.

Are you sure this can be done on a 2960? The VLAN interface has an "ip
address dhcp" command?

The closest thing to a 2960 here, is a 2950, and it doesn't support DHCP
on a VLAN interface.

Why do you feel the need to use DHCP for infrastructure components?

> I ran "debug ip dhcp server event" & "debug ip dhcp server packet"
> Then removed the cable which connects the switch and the router and
> pluged again.
> But the console do not show that the switch issues a dhcp request with
> its client identifier.
>
>
>
> f0/24 is a trunk port. switch get connected to the routers f0/0 port
> through switch f0/24 port.
>
> The switch has 2 VLANs.
> PCs connected to these vlans get the ips through DHCP server(CIsco
> 1841).There are other 2 pools defined in the router for these 2 vlans.
>
>
> Please help me.

Best Regards,
News Reader
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