My Lenovo ThinkCentre Edge 72z comes with USB 2.0. Its maximum throughput is 480Mbit/s but the effective is about 35 MB/s or 280 Mbit/s. I want to improve file transfer speed between my computer with external hard disk by replacing USB 2.0 with Gigabit Ethernet which provides higher bandwidth.
If I connect my QNAP TS-112 which has a gigabit ethernet to TL-WR842ND which supports wireless 802.11n with maximum 300MBit/s and wired fast ethernet with maximum 100Mbit/s, the bottleneck will limit the transfer speed to 100Mbit/s. There are two solutions to improve: get a faster wireless router or connect TS-112 to ThinkCentre Edge 72z directly.
Because my ThinkCentre Edge 72z connect to TL-WR842ND via wireless 802.11n, I have an empty gigabit ethernet. Therefore, I choose to connect TS-112 with gigabit ethernet directly. TS-112 may access internet through the wireless connection on ThinkCentre Edge 72z when it is working.But nobody may see it, even we share the same wireless router.
Share your Wired Network to other Computers
First, you need to share network to other computers.
On my OpenSuSE 13.1 with GNOME, I need to install [dnsmasq-dhcp] first. Then use [Network Connections], [Add] a new [Hardware/Ethernet] with your desktop MAC address in [Device MAC address] in [Ethernet] tab and [Shared to other computers] in [Method] in [IPv4 Settings] tab.
Connect your NAS and Look for IP
2013-12-21T13:27:17.989481+08:00 Edge72z dnsmasq-dhcp: DHCPOFFER(eth0) 10.42.0.12 00:08:9b:d5:c1:bc
Now, I may use the IP address to login to the admin interface and manage as usual.
Of course, the story is not the end. I test the transfer speed with Network File System (aka NFS), Server Message Block with Samba (software), File Transfer Protocol, and iSCSI. It should be available tomorrow.
- Lenovo: ThinkCentre Edge 72z
- Wiki: USB
- Wiki: Gigabit Ethernet
- QNAP: TS-112
- Wiki: IEEE 802.11n-2009
- Wiki: Fast Ethernet
- Wiki: Wireless Router
- Microsoft: Windows: Using ICS (Internet Connection Sharing)
- OpenSuSE: Portal: 13.1
- Simon Kelly: DNSMASQ
- Jeremy Visser: Simple Internet connection sharing with NetworkManager
- OpenSuSE: Chapter 25. Using NetworkManager
- QNAP: Qfinder
- Wiki: MAC address
- Wiki: YaST
- Wiki: Network File System
- Wiki: Samba (software)
- Wiki: Server Message Block
- Wiki: File Transfer Protocol
- Wiki: iSCSI