Hi all,
Another thing I came across in Wb3 Lab 7 today.
This consumed a lot of time when I did the lab today, but I
did not mind as it was a great learning scenario.
The task is to configure PPPoE on a subnet. Client requests ip address via
DHCP, with a
pool on the PPPoE server. Usual scenario
of making sure that your one known client gets the proper IP address, while
allowing for others.
Now, DSG has solution of following format:
ip dhcp pool R8
host 10.8.45.8 255.255.255.0
client-id <mac of r8>
ip dhcp pool OTHERS
network 10.8.45.0 /24
int virtual-template 1
peer default ip address dhcp-pool R8
Firstly, wouldn’t tying the virtual-template to the R8 pool
mean that ONLY one device can get an IP address from this virtual template as
pool OTHERS is not used?
When I was doing this in the lab, I thought I’d save time
and put the virtual-template in the VRF up front. This caused no end of
problems! You cannot use the “vrf” keyword in a host
pool. You can in the OTHERS pool. I had “peer default ip address dhcp”
configured at the time.
I had to resort to the DSG to get a working solution, but I
am not convinced the solution satisfied the lab requirement.
This leads to a more general question:
How do you tie a DHCP pool to a VRF? Is it with the VRF keyword under the
pool? If so, you cannot configure the
vrf keyword under the host pool, so how do you associate host pools with a VRF?
Let’s say you have 2 clients, each with hard coded MAC
address 0000.0000.0001, in 2 different VRFs.
They have to be assigned different known IP addresses, via DHCP, in two
different VRFs, along with other general clients in both VRFs. How would you
do that?
Regards, George.
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