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URE(4) Device Drivers Manual URE(4)

ureRealtek RTL8152/RTL8153/RTL8156 USB Ethernet driver

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"

The ure driver supports the Realtek USB Ethernet Controller family.

The ure driver supports the following media types:

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.
Set 10Mbps operation. The mediaopt option can also be used to select either full-duplex or half-duplex modes.
Set 100Mbps (Fast Ethernet) operation. The mediaopt option can also be used to select either full-duplex or half-duplex modes.
Set 1000baseTX (Gigabit Ethernet) operation over twisted pair. The Realtek gigE chips support 1000Mbps in full-duplex mode only.
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:

Force full-duplex operation.
Force half-duplex operation.

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

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

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.

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

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

April 8, 2025 release-26.07