I may need more detail to accurately answer your question but I believe you are asking whether or not you can configure a specific DHCP pool for each VLAN and the answer is yes...but, it depends on the devices involved in your network.
Is there a specific device you are curious about or were you wanting to know if it is even possible in the first place?
Thanks for the reply. I will be working Cisco 2960 & 3560 switches. The 3560 will be the core switches and the 2960 will hang off it. I will also configure the 3560 switches with HSRP for redundancy. I would like to configure specific DHCP pool for the created VLAN's. Do you knows the commands for creating DHCP pool for VLAN's. I have the commands for creating DHCP pool but not for VLAN's. Thanks in advance.
Hello and good evening,
You create a DHCP scope on a 3560 just like any other IOS DHCP configs ...here is a sample config:
interface vlan 1
ip add 18.104.22.168 255.255.255.0
interface vlan 2
ip address 22.214.171.124 255.255.255.0
ip dhcp excluded-address 126.96.36.199 188.8.131.52
ip dhcp excluded-address 184.108.40.206 220.127.116.11
ip dhcp pool vlan1
network 18.104.22.168 255.255.255.0
dns-server 22.214.171.124 126.96.36.199
ip dhcp pool vlan2
network 188.8.131.52 255.255.255.0
dns-server 184.108.40.206 220.127.116.11
Here is the link for configuring IOS DHCP services:
Your proposed design is a good one, and you have obviously done your homework! A nice design!
I would say however, that this community is really more for Cisco Small Business products and your question is in reference to a Cisco traditional products. I believe you will have a better experience by posting your question in the Cisco NetPro forums located here: http://forums.cisco.com/eforum/servlet/NetProf?page=main
That forum has subject matter experts on Cisco traditional products that may be able to answer your question.
Andrew Lee Lissitz
That is a great information. However, I still want to "make sure" I am not configuring the switch (3560) incorrectly.
My scenario is this - a 3560 switch is connected to a router and a local cable modem provider.
We have configure Vlan1 and 2 to access our router and network. However, we want to configure the Vlan10 to utilize the local cable modem for internet access. I have the cable modem IP address (network/subnet). The cable modem will not hand out DHCP. I would like to setup the switch (3560) to hand out ip address using /16 subnet.
Thank you all for your input and suggestions.
u have to creat the required VLAN(s)
then for each VLAN u have to Creat a DHCP config the relate to that vlan and havs the right ip subnet
lets say u have vlan 10
make the vlan on ur access layer switch
vlan 10 [enter]
then assign this vlan to the required ports
and make sure the switch port no shutdown anslo the is Important thing which is the spanning tree PORTFAST this otion if u dont put it on access port for client need DHCP u gonna loss the DHCP
interface range fa0/1 - 24
switchport mode access
switchport access vlan 10
these ports ready to connect the PCs
now next step for distribution layer and DHCP
make the connection between the access switches and the Dist switches trunk to pass VLAN tags
then on the Dist switches creat the same vlans numbers
and creat for each vlan a switched virtual interface SVI which will be the defaul gateway for client in the corspoding VLAN
example Dist switch
vlan name vlan_10
interface vlan 10
ip address 10.1.1.1 255.255.255.0
10.1.1.1 will be the default gateway for vlan 10 users
then go to configure the dhcp on the switch
note: if u have the dhcp on other router, switch or server u have to add th ip hlper command on the SVI interface poiting to that dhcp server
in our example the Dist switch will be the dhcp so we dont need that command
ip dhcp pool vlan10
about option 150 this option used when u have IP telphoney and voice vlan to point to the TFTP server
if u dont have u dont need it
and repeat the same config for each vlan but with deffrent ip address
for example dhcp for vlan 20
ip dhcp pool vlan20
and so on
dont for get the SVI
and the access port config with portfast
also check the dhcp service if enabled or not(by default yes)
this link also helpful
please, Rate if helpful