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DHCP pools

w_basheer
Level 1
Level 1

Dears;

I create 3 DHCP pools; for three different subnets;

how can i bind each pool for each subnet?

5 Replies 5

w_basheer
Level 1
Level 1

I have the following:

subnet1----Router1-------------Router2(DHCP pool1 + pool2)

|

Subnet2

I added ip helper-address pointing to Router2;

when the clients on Subnet1 or Subnet2 trying to get ip address;

on Router2 debug appears

"there is no address pool for 172.18.1.1"

where 172..18.1.0 is the link between the two routers not the pools.

Address assignmnet in the DHCP is totally depend on the GID field DHCP Packet if you try to do some reacher on DHCP packet theory then you will come to know how DHCP will assign the IP address to perticular host from perticular pool...

explaination is little bit long so if you will try to search it from internet then it will be good... otherwise come back to disscussion forum

regards

Devang

DHCP Pool

int fa0/0
ip address 192.168.10.1 255.255.255.0
no shut
exit

ip dhcp pool (NAame)
192.168.10.0 255.255.255.0
default 192.168.10.1
exit

ip dhcp exclude 192.168.10.1 192.168.10.10
exit
copy run start
show run

Hi,

Share your configuration. It seems that you are making mistake in IP Helper address or Interface IP/VLAN IP subnet mistakes.

 

Regards,

Deepak Kumar

Regards,
Deepak Kumar,
Don't forget to vote and accept the solution if this comment will help you!

Hello


@w_basheer wrote:

Dears;

I create 3 DHCP pools; for three different subnets;

how can i bind each pool for each subnet?


Each dhcp scope requires a valid l3 interface for users in that subnet to obtain allocation and if the dhcp server is remote then a dhcp relay is also required in a form of a ip helper address which will in summary relay client dhcp requests towards the server on behalf of the client.

 


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Kind Regards
Paul
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