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URE(4)			     Kernel Interfaces Manual			  URE(4)

NAME
     ure -- Realtek RTL8152/RTL8153/RTL8156 USB Ethernet driver

SYNOPSIS
     To compile this driver into the kernel, place the following lines in your
     kernel configuration file:

	   device uhci
	   device ohci
	   device usb
	   device miibus
	   device uether
	   device ure

     Alternatively, to load the driver as a module at boot time, place the
     following line in loader.conf(5):

	   if_ure_load="YES"

DESCRIPTION
     The ure driver supports the Realtek USB Ethernet Controller family.

     The ure driver supports the following media types:

     autoselect   Enable auto selection of the media type and options.	The user
		  can  manually  override the auto selected mode by adding media
		  options to the /etc/rc.conf file.

     10baseT/UTP  Set 10Mbps operation.  The mediaopt option can also be used to
		  select either full-duplex or half-duplex modes.

     100baseTX	  Set 100Mbps (Fast Ethernet) operation.   The	mediaopt  option
		  can  also  be used to select either full-duplex or half-duplex
		  modes.

     1000baseTX   Set 1000baseTX (Gigabit Ethernet) operation over twisted pair.
		  The Realtek gigE chips support 1000Mbps  in  full-duplex  mode
		  only.

     2500base-T   Set  2500Base-T  operation  over  twisted  pair.   The Realtek
		  8156/8156B chips support 2500Mbps in full-duplex mode only.

     The ure driver supports the following media options for 10/100 operation:

     full-duplex  Force full-duplex operation.

     half-duplex  Force half-duplex operation.

     For more information on configuring this device, see ifconfig(8).

HARDWARE
     The ure driver supports the following USB Ethernet controllers:

     Model:					     Speed (Mbps):
     Realtek RTL8156/RTL8156B/RTL8156BG 	     10, 100, 1000, and 2500
     Realtek RTL8153/RTL8153B			     10, 100, and 1000
     Realtek RTL8152				     10 and 100
     Realtek RTL8168/8169/8110/8211 via rgephy(4)    10, 100, and 1000

DIAGNOSTICS
     ure%d: watchdog timeout  A packet was queued for transmission and a  trans-
     mit command was issued, however the device failed to acknowledge the trans-
     mission before a timeout expired.

SEE ALSO
     arp(4), miibus(4), netintro(4), ng_ether(4), ifconfig(8)

AUTHORS
     The ure driver was written by Kevin Lo <kevlo@FreeBSD.org>.

FreeBSD ports 15.1		  April 8, 2025 			  URE(4)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=ure&sektion=4&manpath=FreeBSD+15.1-RELEASE+and+Ports>

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