How to know all DHCP options and values (on the client side, Linux Ubuntu / Debian / ArchLinux ) provided by the server. I need to pass non-standard option to the client by the DHCP option code example:
222-223 Unassigned
224-254 Reserved (Private Use)
The file /var/lib/dhcp.lease does not contiend my options
just edit the config file /etc/dhcp/dhclient.conf and add also request
# custom dhcp option (72 = www-server)
also request www-server;
the value is avaible in /var/lib/dhcp/dhclient.lease
On my Debian based system with NetworkManager, the lease information is available in files like /var/lib/NetworkManager/internal-$UUID-$IFACE.lease.
