Configuring X Window System Display Manager IP addresses (option 49)
Option 49 of RFC 2132 specifies a list of IP addresses of systems that are running the X Window System Display Manager and are available to the client.
The X Window client is a DHCP client in a network that solicits configuration information by broadcasting a DHCP discovery packet on bootup or when the DHCP client is enabled. The DHCP server provides the IP addresses of systems running the X Window System Display Managers available in the network in their preferred order as part of the DHCP offer message.
On receipt of a discovery packet from the client, a DHCP offer message must be sent back. Option 49 must be added with the IP addresses of systems running the X Window System Display Manager in the network, along with other mandatory options. You can configure a maximum of three IP addresses in a DHCP server pool.
The following example configures the IP addresses of systems running the X Window System Display Manager in the DHCP configuration pool.
device# configure terminal device(config)# ip dhcp-server pool cabo device(config-dhcp-cabo)# xwindow-manager 10.38.12.1 10.38.12.3 10.38.12.5