HP and 8150 MFP manual Appendix B Control Panel Menus 462, Cfg Tcp/Ip=No

Appendix B Control Panel Menus				462
Item	Values	Explanation
CFG TCP/IP=NO	NO	NO: The TCP/IP Menu is not accessible.
	YES	YES: The TCP/IP Menu appears. In the TCP/IP Menu, you
		can specify BOOTP=YES for TCP/IP parameters to be
		automatically loaded from a bootp or DHCP server when
		the printer is turned on. If you specify BOOTP=NO, you can
		manually set selected TCP/IP parameters from the
		control panel. You can manually set each byte of the IP
		address (IP), Subnet Mask (SM), Syslog Server (LG), and
		Default Gateway (GW). For example:
		Byte 1	192.0.0.192	Byte 4
			Byte 2 Byte 3

If the Syslog Server IP address is left blank, the printer will still work. Also, you can manually set the Timeout time period.

EIO Menu