
310329 |
yes realy sir…
but i am geting dhcp ip for vlan 10 from the respective DHCP server.. my issue i wnat to get dhcp IP from that vlan 10 dhcp server to vlan 170 clients also….
but that vlan 10 traffic should be on vlan 170..
i cant change in each n every laptop..
for ur information am using layer 3 advanced switch to do this..
i also tried by enabling the IP helper in the switch but it is not happening ..
please advice me how to handle this… but it is possible.. but some where i am lagging.. i want that tip…
with regards
sathish
Network support engr.

Labnuke99 |
You will need to configure the switch ports to be access ports for the VLAN where you desire these devices to be. This enables the switch to forward the DHCP requests tagged with the appropriate subnet request.

Snapper70 |
In a Cisco switch/router config, you’d put (in the vlan configuration for 170) something like:
IP helper-address 10.102.1.2
This will direct the DHCP broadcast requests to the server with multiple scopes defined. It will then know enough to forward the response back to the originating router via the giADDR field, who will in turn send the packet out to the requesting client.
If your routing works properly between the 2 subnets, AND you can put the “helper-address” or equivalent into the routing portion of the switch, AND the corresponding scope is properly defined, those clients should get DHCP addresses.