Catalyst 2960 as DHCP

[jahanzaib.pgis]

Hi,

i wan to configure DHCP Pool on Catalyst 2960 Switch. Can we configure it as DHCP Server so it assign IPs on LAN?

I Saw configuration in which it define Pool but with this they define some Snooping? Why Snopping?

Thankx.

Amin

[James Hawkins]

DHCP Snooping is a security mechanism that stops unauthorised DHCP servers responding to DHCP requests from clients connected to the same VLAN.

It works by having authorised ports which are used to connect DHCP servers (or for uplinks to other switches connecting DHCP servers) and unauthorised ports on which DHCP responses from connected devices are blocked.

DHCP snooping is available on the Catalyst 2960.

I do not believe that the IOS DHCP server feature is available on the Catalyst 2960 as it is a layer 2 switch. It is definitely available on layer 3 capable switches such as the 3560 and 3750.

Hope this helps.

[glen.grant]

   I'm pretty sure you can use it as a dhcp server , think we have done this once or twice .  Also with the very latest 2960 IOS release that l2 switch can become a l2/3 switch and do intervlan routing   using static routes only  for attachment to the rest of the network .  Set it up as you normally would on say a 3560 .

[jahanzaib.pgis]

Hi All,

I get configured 2960 as DHCP server with required subnet and working correctly on LAN.  I have the following configuration:

ip dhcp pool TEST
   network 150.100.4.0 255.255.252.0
   domain-name xyz.com
   default-router 150.100.4.1
   dns-server 10.10.20.55 10.10.0.55 10.10.0.56

ip dhcp snooping
no ip domain-lookup
ip domain-name xyz.com
ip dhcp-server 150.100.4.2

Now I want to change my desgin. I have multiple Access point configured with the IP from different subnets of Class B:

Access Point A:     150.100.10.0 255.255.252.0 ----------Subnet 2

Access Point B:     150.100.15.0 255.255.252.0 ----------Subnet 3

Access Point C:     150.100.20.0 255.255.252.0 ----------Subnet 4

and i want that when Client Access throu AP on network, it will get the IP for Configred Subnet Address on AP: Like

Clients with Access Point A get the IP Address Range from 150.100.10.1 /22

Clients with Access Point B get the IP Address Range from 150.100.15.1 /22

Clients with Access Point C get the IP Address Range from 150.100.20.1 /22

So wt shoudl i do now ? Either i will define multiple Subnets Pool On 2960 ? If i create multiple Pool with Required Subnet then how AP will provide the

adress from 2960 DHCP for required subnet. IP Helper Address Command or some thing else?

This is bit difficullt scanrio but very challeging,

Amin