hi!

I am new to hardware hacking though *not* very new to generally using *nix like systems that is I am comfortable with the command line.

I have a TP-Link MR3020 and wanted to try out this tutorial [1] and so I followed instructions on downloading the OpenWRT firmware and using the router's web GUI to upload it. Once I did that I see that I have no wifi access to connect to the router and that I must connect to it using a Ethernet cable.  I have a Macbook Air running OS X which doesn't have a Ethernet port in-built. So, I got a Ethernet to USB adapter, connected a Ethernet cable to it and connected the other end to my TP-Link router. After this, I ran `iwconfig` on my OSX and...

lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
    options=3<RXCSUM,TXCSUM>
    inet6 ::1 prefixlen 128
    inet 127.0.0.1 netmask 0xff000000
    inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
    nd6 options=1<PERFORMNUD>
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
stf0: flags=0<> mtu 1280
en0: flags=8823<UP,BROADCAST,SMART,SIMPLEX,MULTICAST> mtu 1500
    ether 10:40:f3:89:d4:f0
    nd6 options=1<PERFORMNUD>
    media: autoselect (<unknown type>)
    status: inactive
en1: flags=8963<UP,BROADCAST,SMART,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
    options=60<TSO4,TSO6>
    ether b2:00:1f:92:cd:20
    media: autoselect <full-duplex>
    status: inactive
p2p0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 2304
    ether 02:40:f3:89:d4:f0
    media: autoselect
    status: inactive
bridge0: flags=8822<BROADCAST,SMART,SIMPLEX,MULTICAST> mtu 1500
    options=63<RXCSUM,TXCSUM,TSO4,TSO6>
    ether 12:40:f3:98:bd:00
    Configuration:
        id 0:0:0:0:0:0 priority 0 hellotime 0 fwddelay 0
        maxage 0 holdcnt 0 proto stp maxaddr 100 timeout 1200
        root id 0:0:0:0:0:0 priority 0 ifcost 0 port 0
        ipfilter disabled flags 0x2
    member: en1 flags=3<LEARNING,DISCOVER>
            ifmaxaddr 0 port 5 priority 0 path cost 0
    media: <unknown type>
    status: inactive
utun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1380
    inet6 fe80::45c0:63bf:d93e:70e4%utun0 prefixlen 64 scopeid 0x8
    inet6 fd8c:e69b:88d0:c79e:45c0:63bf:d93e:70e4 prefixlen 64
    nd6 options=1<PERFORMNUD>

Beyond this I don't know to set the IP address of my macbook to 192.168.1.1 and telnet into router. How do I go about this? Thanks so much!!

[1] http://www.linux-magazine.com/Online/Fe … att-Server

It was my Mac OSX not recognizing my cheap Ethernet to USD adapter. Solution here: blog.inkandfeet.com/How-To-Use-A-Generic-Usb-20-10100M-Ethernet-Adaptor-Rd9700-On-Mac-Os-1010-Mavericks.

Now am able to telnet/ssh into my router, w00!

OK I did something and now I lost access to the openwrt installation on my tplink mr3020 router. Failsafe mode (activated by pressing reset button) doesn't allow me to telnet:

telnet 192.168.1.1
Trying 192.168.1.1...
telnet: connect to address 192.168.1.1: Network is unreachable
telnet: Unable to connect to remote host

What does this mean?

So after a few tries I gave up trying to get into failsafe mode using my mac. I had a tablet with linux running Debian Jessy on it so I hooked up my tplink to it. Set ip addr stuff with instructions from [1] and then proceeded to [2] and accessed the tplink with 'nc' (because debian didn't have telnet).

[1] https://wiki.archlinux.org/index.php/Ne … figuration
[2] http://wiki.openwrt.org/doc/howto/gener … lsafe.mode

OK configured wireless just as in http://wiki.openwrt.org/toh/tp-link/tl-mr3020 but still cant see the wifi network to connect to! What's happening???

Doh! In the '/etc/config/wireless I didn't put in 'option disabled 0'
and also instead of customizing the wireless network first time itself, i just let the defaults be (that is the: Openwrt SSID and no encryption), then I was able to see the network and connect to my ISP

I modified the default Openwrt network to my liking and took a backup, everything is working great! thanks openwrt!

Now back to trying out my One-Watt Server experiment!