Re: DHCP server problem

From: Adam Booth <adam.booth_at_gmail.com>
Date: Sun, 24 Apr 2011 10:58:45 +1000

I believe that you need to include "ip dhcp snooping trust" on the switch
interface facing the DHCP server when you include dhcp snooping on a switch
otherwise it will be dropped.

On Sun, Apr 24, 2011 at 9:27 AM, Dale Shaw <dale.shaw_at_gmail.com> wrote:

> Hi Bryan,
>
> On Sun, Apr 24, 2011 at 6:12 AM, Bryan Stair <uptown.ccie_at_gmail.com>
> wrote:
> >
> > Working on a lab and came across problem with dhcp and I am not sure why
> > it's not working. Scenario asks to config R3 as DHCP server, the dhcp
> client
> > is a switchport one hop away. I was able to setup the pool and the links
> > correctly, but the switchport never get the address. Debugging did not
> > provide any glaring answers. Can someone shed light on this.
>
> [...]
>
> Something doesn't add up in the configs you posted. Is SW3's Fa0/21
> interface acting as a switchport or a routed interface? At first
> you're saying you have an "ip address dhcp" statement on it, then
> you're saying you've got it in "switchport mode access".
>
> Is SW3's layer 3 interface the physical port (Fa0/21) or an SVI
> (Vlan90)? Where is your "ip address" statement applied?
>
> Cheers,
> Dale
>
>
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Received on Sun Apr 24 2011 - 10:58:45 ART

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