this is about https://support.sophos.com/support/s/article/KB-000036032?language=en_US&c__displayLanguage=en_US
We were having a hard time with this issue described there. And I think the Topic of that KB is misleading because it describes general DHCP stuff.
I would suggest a change to something like: "Devices not getting dynamic DHCP lease when a static MAC-IP reservation exists"
An other real world scenario where we actually had this issue:
Sophos Central Wireless SSID with Guest network
Accesspoints in VLAN 1
Guests in VLAN 2
In VLAN 1 there are static MAC-IP reservations for the Accesspoints, no dynamic range
In VLAN 2 all IPs are leased dynamically
We need to find out the hard way that the Accesspoints want to get a DHCP addressnot only in their native VLAN 1 but also in the VLAN 2. So actually each AP has 2 IP addresses, with the same MAC address!
See here:
This does not work, if DHCP scope is not set to global as described in KB 000036032.
I ask to put this info in the documentation of wireless networking too.
Thanks for keeping the Documentation up2date.
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