RE: PPPOE with DHCP assigned IP address

From: Shaughn Smith (Shaughn.Smith@za.verizonbusiness.com)
Date: Wed Jan 14 2009 - 14:55:34 ARST


Never mind, was a bit confused.

Got it sorted

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Shaughn Smith
Sent: Wednesday, January 14, 2009 6:15 PM
To: 'ccielab@groupstudy.com'
Subject: PPPOE with DHCP assigned IP address

Hi All

I am having a little problem here.

I have setup a PPPOE client/server relationship and I want to exclude IP's
from being assigned from the DHCP pool.

Now the only caveat here is that the Server ie Virtual-template interface is
sitting in a VRF. I have added the IP Dhcp-excluded command to exclude the
IP's I don't want assigned however it doesn't seem to be working. Here are my
configs

SERVER

ip dhcp excluded-address 10.1.1.3 10.1.1.255
!
ip dhcp pool PPPOE
   vrf ABC
   network 10.1.1.0 255.255.255.0

interface Virtual-Template1
 ip vrf forwarding ABC
 ip address 10.1.1.1 255.255.255.0
 peer default ip address dhcp-pool PPPOE
 ppp ipcp mask 255.255.255.0

CLIENT

ip dhcp pool local
   import all
   origin ipcp

interface Dialer1
 ip address pool local
 encapsulation ppp
 dialer pool 1
 dialer idle-timeout 0
 dialer persistent
 ppp ipcp mask request

OUTPUT

R1#sh ip dhcp pool

Pool PPPOE :
 Utilization mark (high/low) : 100 / 0
 Subnet size (first/next) : 0 / 0
 VRF name : ABC
 Total addresses : 256
 Leased addresses : 0
 Pending event : none
 1 subnet is currently in the pool :
 Current index IP address range Leased addresses
 10.1.1.9 10.1.1.0 - 10.1.1.255 0

As you can see if I show the pool you can still see that 10.1.1.0 to .255 is
available, however I did exclude from .3 upwards

The only reason I can think that this is happening is that although I have
told the DHCP pool to be in VRF ABC, the IP excluded address's are in the
"global" table not specific to the VRF

Any help here ?

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