Thank you Denis,Stu, I added option-138, the syntax is correct now but the AP doesn't connect to the Controller. Did I missed any other option(s) in my dhcpd.conf or should I look for the reason at the Controller side?
subnet 10.109.3.0 netmask 255.255.255.0 { option routers 10.109.3.254; range 10.109.3.201 10.109.3.220; #option option-138 10.109.3.100; option option-138 A:6D:3:64; host [...] On Thu, 6 May 2021 11:45:43 +0200 Denis Fondras <open...@ledeuns.net> wrote: > Le Thu, May 06, 2021 at 10:48:55AM +0200, Radek a écrit : > > Hello, > > I want to use dhcpd server to push Wireless Controller's IP address to the > > APs. > > > > According to this: > > http://systemnetworksecurity.blogspot.com/2013/02/adding-custom-options-in-isc-dhcpds.html > > https://www.secuvera.de/blog/capwap-dhcp-option-138-auf-isc-dhcpd-server-einrichten/ > > I need to add *option capwap* to /etc/dhcpd.conf > > > > option capwap code 138 = ip-address; #Custom Option capwap > > option capwap 192.168.1.110; #WLAN-Controller-IP > > > > Have you tried something like : > > option option-138 C0:A8:01:6E; > > ? > -- Radek