Controllerless Networks

Greetings All,

 We have Aruba controller 7210 V 6.4.4.6 and we need to know how to increase the DHCP pool instead of 252 IP's to  512 IP's.

 

I have uploaded the photos  for the current configuration 

 

I believe 7010 can scale upto 1000 leases pre 8.2 releases and 2048 post 8.2.

 

In your case, looks like you have configured the subnet to be /24, which will give you 256 IP addresses. Change it to /23 and you will get 512 IP Addresses.

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@Jibran.Aziz wrote:

I believe 7010 can scale upto 1000 leases pre 8.2 releases and 2048 post 8.2.

 

In your case, looks like you have configured the subnet to be /24, which will give you 256 IP addresses. Change it to /23 and you will get 512 IP Addresses.

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thanks, Jibran.Aziz for your replay,

 

we have done this solution but we received the below message from the controller 

 

could you

 

 

 

Try updating the scope from CLI. I had funky isuses with GUI in the past. Do a show run and look for DHCP pool section. Copy the DHCP pool config, edit with the new subnet, remove the scope and re-apply.Works like a charm.

Thanks, Jibran  for your interest in this issue

 

I have attached the full current configuration could you check it and advise is there another changing?

 

 

Should be something like:

!

interface vlan 11
no ip address
ip address 192.168.1.2 255.255.254.0
operstate up
exit
!

#Not the best DHCP pool names.
no ip dhcp pool AP's
!
ip dhcp pool AP_VLAN11
default-router 192.168.1.2
network 192.168.1.0 255.255.254.0
dns-server 10.10.50.1
authoritative
!

 

If you have any other core switch/device that is advertising VLAN 11 subnet, you have to update the subnet to /23.

 

Also noticed your VLAN 8 is /20:

interface vlan 8
ip address 172.8.1.2 255.255.240.0

 

Make sure this is by design. You won't ne able to create a DHCP scope for /20 on an Aruba controller. Try using a dedicated DHCP server for this subnet.

Hi Aziz, 

 

about your noticed for VLAN8 its already working for an end user

 

 

Also noticed your VLAN 8 is /20:

interface VLAN 8
ip address 172.8.1.2 255.255.240.0

 

Make sure this is by design. You won't be able to create a DHCP scope for /20 on an Aruba controller. Try using a dedicated DHCP server for this subnet.

 

also as understand that the Aruba  controller 7210 can generate DHCP pool up to 5120  

My bad.. I thought you are using 7010.

I received the below during the configuration 

 

(NESMA) (config-subif)#no ip address

Error: Switch IP address is configured with this interface

 

Also I tried to remove the vlan11 but i received the following

 

(NESMA) (config) #no interface vlan 11
ERROR: Cannot Delete Vlan Routing Interface:Remove IP Address before deleting the interface

If you want to remove the L3 interface then 1st need to remove the IP from the interface and then remove the interface vlan 11.

 

Try : 

int vlan 11

no ip add

!

no int vlan 11

 

Thanks,

Raja

Hi Raja,

 

Is there a discussion on how to increase the DHCP pool?? Or are we discussing how to remove an L3 VLAN from controller? 

Hi Sri,

Initially discussion starts for extension for DHCP , looks finally they
removing on L3 interface....

pls ignore if i am wrong.

--
Thanks&Regards,
Rajasekhar R
07204921201