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Change my AP's DHCP address

First, i want to tell you all who contribute to this forum, thank you for contributing. I am in awe of the amount of knowledge on this website, and I'm glad to have found it.

I have configured my UTM with the first of 5 AP's and multiple SSID's. i have figured out how to configure the internal and bridged LAN, and give users access to internal and access resources. 

My issue came when I wanted to assign a static IP address to my AP versus using DHCP. Is there a way to do that? It makes no sense that I cant assign a static IP address to an AP. I am sure I'm just not looking in the right place. But if someone has an idea, please let me know. I can contact support, but y'all are definitely more fun! Thank you!


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  • Yes it's possible, by creating a static mapping with the MAC address of the AP.  The trick is that it must be an address outside the scope of the DHCP range, so if your network is 192.168.1.X/24, set the DHCP range for 192.168.1.50-254, leaving yourself the addresses before 50  for static mappings.  After naking the change, you'll want to power cycle the AP.

    From the help at Network Services > DHCP > IPv4 Lease Table

    Note – When converting a lease to a static mapping you should change the IP address so that it is no longer inside the scope of the DHCP pool. However, if you change the IP address, the address used by the client will not change immediately, but only when it tries to renew its lease for the next time.
    __________________
    ACE v8/SCA v9.3

    ...still have a v5 install disk in a box somewhere.

    http://xkcd.com
    http://www.tedgoff.com/mb
    http://www.projectcartoon.com/cartoon/1
  • Thank you so much, Scott! i will try your trick while the WiFi is still not production. I do greatly appreciate your help.
  • Happy to oblige.
    __________________
    ACE v8/SCA v9.3

    ...still have a v5 install disk in a box somewhere.

    http://xkcd.com
    http://www.tedgoff.com/mb
    http://www.projectcartoon.com/cartoon/1
  • ok- so i was able to get the IP address of the AP. my issue now is that i have two wireless network scopes- one is the guest and the other is being bridged to my internal network. so, the AP got an IP address from  my AD box, and it is currently assigning IP addresses to the guests from another range. since the ip address scope to which it is currently assigned (lets say 10.10.10.0/24 versus 10.10.0.0/24) is not in the same range, and being managed by AD, it does not appear in the IPv4 lease table, and i cannot create a static mapping. is it still possible to change the IP?

    does the AP have a web interface?

    Thanks again!
  • Create the mapping on your internal DHCP server, not on the UTM.

    ----------
    Sophos user, admin and reseller.
    Private Setup:

    • XG: HPE DL20 Gen9 (Core i3-7300, 8GB RAM, 120GB SSD) | XG 18.0 (Home License) with: Web Protection, Site-to-Site-VPN (IPSec, RED-Tunnel), Remote Access (SSL, HTML5)
    • UTM: 2 vCPUs, 2GB RAM, 50GB vHDD, 2 vNICs on vServer (KVM) | UTM 9.7 (Home License) with: Email Protection, Webserver Protection, RED-Tunnel (server)
  • I know it's an old thread, but this is how i resolved it. i connected my AP interface to a switch which only connects my AP's to my internal network.

    i then created a DHCP scope on said switch and assigned it a total of 10 ip addresses to be used for my 10 AP's on the interfaces where the AP's are connected.

    my ap's are now getting IP addresses outside my AD scope, and are working as expected.