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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  op-
		    tion  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	opera-
       tion:

       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
       transmit	command	was issued, however the	device failed  to  acknowledge
       the transmission	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	14.3			 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+14.3-RELEASE+and+Ports>

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