What does your network look like? What is the default gateway on the network that now has only static IP configuration? And what device would be the DHCP server?
In most cases the device that is the default gateway for a subnet is also the DHCP server (or DHCP relay). If there is already an IP address configured, your normally just configure the DHCP scope (with same subnet and the default gateway as router) and enable the dhcp server which will then map the DHCP scope based on the subnet to the correct interface.
This may be something that your Aruba/IT partner can easily configure for you as it is basic network configuration, not Aruba specific.
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Herman Robers
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If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check
https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
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Original Message:
Sent: Aug 03, 2023 11:05 AM
From: Bellruba
Subject: How to configure an internal DHCP-server with VLAN
I just came across this and hoping that it is not closed yet. I have an existing Vlan with dedicated ports and a subnet. There are several computers using this ports and the only way they can connect to the internet is to manually put in the IP address. I would like the Vlan to be a DHCP so they don't manually configure the IP address on the devices. The vlan currently doesn't have an IP address. To make a Vlan a dhcp it has to be assigned an address. My question is should I use the subnet as the IP address?
Original Message:
Sent: Oct 05, 2018 08:19 AM
From: Herman Robers
Subject: How to configure an internal DHCP-server with VLAN
With the following code you can:
- Create a VLAN (79 in the example)
- Put IP address on the VLAN
- Create a DHCP scope (pool)
- Set pool exceptions (IP addresses will not be pulled from the configured ranges)
- Enable DHCP server
vlan 79interface vlan 79 ip address 192.168.79.1 255.255.255.0!ip dhcp pool VLAN_79 default-router 192.168.79.1 dns-server 1.1.1.1 1.0.0.1 domain-name aruba.local network 192.168.79.0 255.255.255.0!ip dhcp excluded-address 192.168.79.0 192.168.79.127ip dhcp excluded-address 192.168.79.192 192.168.79.255service dhcp
In general, use external DHCP servers wherever possible. Internal DHCP can be used for testing or small-scale deployments.