DHCP Scope Mapping to Subinterfaces in Prisma SD-WAN (ION Device)

SANTHAPRABU — Mon, 05 May 2025 07:22:15 GMT

Hi Community,

I’ve configured two DHCP scopes with different IP subnets under the Branch Site configuration in Prisma SD-WAN. On the corresponding ION device, I’ve also created two subinterfaces, each intended for a different VLAN and subnet.

I would like to understand:
How does the ION device ensure that the correct DHCP scope is applied to the appropriate subinterface, so that clients in each VLAN/subnet receive the correct IP address range?

Do I need to explicitly map each DHCP scope to its corresponding subinterface, or does the system handle this automatically based on VLAN tagging or another mechanism?

Any clarification or best practices would be greatly appreciated.

Thanks,

Re: DHCP Scope Mapping to Subinterfaces in Prisma SD-WAN (ION Device)

rgallagher — Thu, 12 Jun 2025 21:38:19 GMT

You don't need to do any additional mapping, the DHCP will be applied to the appropriate interface based on the configured subnet.

topic Re: DHCP Scope Mapping to Subinterfaces in Prisma SD-WAN (ION Device) in Prisma SD-WAN Discussions

DHCP Scope Mapping to Subinterfaces in Prisma SD-WAN (ION Device)

Re: DHCP Scope Mapping to Subinterfaces in Prisma SD-WAN (ION Device)