Being asked to add support for Realtek's Fast Ethernet PCIe NICs to my RTL8111 driver I got tired of answering the same old question again and again so that I finally decided to write a separate driver for these chips and to make a few of you guys and gals happy.
As of now the driver supports the following members the RTL810X Fast Ethernet family:
Here is a list of the driver's basic features:
- Supports Mavericks, Mountain Lion and Lion.
- 64 bit architecture only.
- Support for multisegment packets relieving the network stack of unnecessary copy operations when assembling packets for transmission.
- No-copy receive and transmit. Only small packets are copied on reception because creating a copy is more efficient than allocating a new buffer.
- TCP, UDP and IPv4 checksum offload (receive and transmit).
- TCP segmentation offload under IPv4.
- Support for TCP/IPv6 and UDP/IPv6 checksum offload.
- Supports Wake on LAN.
- Support for Energy Efficient Ethernet (EEE) which can be disabled by setting enableEEE to NO in the drivers Info.plist without rebuild. The default is YES.
- The driver is published under GPLv2.
- Built using Xcode 4.6.3.
- Version 1.0.0 (2014-05-24):
- First offical release.
- Goto /S/L/E and delete the old driver.
- Recreate the kernel cache.
- Open System Preferences and delete the corresponding network interface, e. g. en0. If you forget this step you might experience strange problems with certain Apple domains, iTunes and iCloud later.
- Install the new driver and recreate the kernel cache.
- Open System Preferences again, select Network and check if the new network interface has been created automatically or create it manually now.
- Configure the interface.
- Make sure you have followed the installation instructions especially when you have issues with certain domains while the others are working fine.
- In Terminal type "kextstat" or "grep RealtekRTL8100 /var/log/system.log" to verify that the driver loads.
- Use the debug version to collect log data when trying to track down problems. The log messages can be found in /var/log/system.log. Include the log data when asking for support or giving feedback. I'm an engineer, not a clairvoyant.
- Check your BIOS settings. You might want to disable Network Boot and the UEFI Network Stack as these can interfere with the driver.
- Double check that you have removed any other Realtek kext from your system because they could prevent the driver from working properly.
- Verify your bootloader configuration, in particular the kernel flags. Avoid using npci=0x2000 or npci=0x3000.
- In Terminal run netstat -s in order to display network statistics. Carefully examine the data for any unusual activity like a high number of packets with bad IP header checksums, etc.
- In case auto-configuration of the link layer connection doesn't work it might be necessary to select the medium manually in System Preferences under Network for the interface.
- Use Wireshark to create a packet dump in order to collect diagnostic information.
- Keep in mind that there are many manufacturers of network equipment. Although Ethernet is an IEEE standard different implementations may show different behavior causing incompatibilities. In case you are having trouble try a different switch or a different cable or disable EEE.
Getting the driver
- There is a prebuilt binary in the Download section of this site: http://www.insanelym...rtl8100-binary/
- The source code can be found on Github: https://github.com/M.../RealtekRTL8100