's journal
Archive for December, 2011
9Gagtension – Facebook comment, message and chat trendy meme emoticons support
01 year ago
by engin
in programming
I noticed I was using quite some meme references in my Facebook comments such as :sweet jesus: or :mother of god:. So, yesterday evening, I put together an Chrome extension for this. Very simple.
List of memes and other information: http://engin.bzzzt.biz/9gagtension
Source code: https://github.com/engina/9gagtension
This is where you install: Chrome Extension Page
Windows routing problem: Network is unreachable
0I don’t know what got broken, or how did it get broken but IP connections on my interface which is using AUTO IP (169.254.0.0/16) stopped working all of a sudden.
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$ nc -nvvvv 169.254.2.206 23 (UNKNOWN) [169.254.2.206] 23 (?) : Network is unreachable sent 0, rcvd 0 |
When I explicitly bind to the correct interface it worked.
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$ nc -s 169.254.46.68 -nvvvv 169.254.2.206 23 (UNKNOWN) [169.254.2.206] 23 (?) open Welcome to ENDA Administration Terminal Password: |
The fact that the error is returned immediately and the content of the error points out that it is a routing problem. So I checked my routing table.
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$ route -4 print =========================================================================== Interface List 37...00 1f 1f ea 7f 52 ......150Mbps Wireless 802.11b/g/n Nano USB Adapter 28...00 ff 2d 67 65 d4 ......TAP-Win32 Adapter V9 10...00 1d ba 68 a5 ac ......Intel(R) 82567LM Gigabit Network Connection 1...........................Software Loopback Interface 1 12...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface 39...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter 26...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #3 38...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2 =========================================================================== IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.104 25 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 169.254.46.68 255.255.255.255 On-link 169.254.46.68 356 192.168.1.0 255.255.255.0 On-link 192.168.1.104 281 192.168.1.104 255.255.255.255 On-link 192.168.1.104 281 192.168.1.255 255.255.255.255 On-link 192.168.1.104 281 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link 169.254.46.68 356 224.0.0.0 240.0.0.0 On-link 192.168.1.104 281 255.255.255.255 255.255.255.255 On-link 127.0.0.1 306 255.255.255.255 255.255.255.255 On-link 169.254.46.68 356 255.255.255.255 255.255.255.255 On-link 192.168.1.104 281 =========================================================================== Persistent Routes: Network Address Netmask Gateway Address Metric 0.0.0.0 0.0.0.0 192.168.1.1 Default 0.0.0.0 0.0.0.0 192.168.1.1 Default =========================================================================== |
Looks like the problem is
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169.254.46.68 255.255.255.255 On-link 169.254.46.68 356 |
Netmask should have been 255.255.0.0, so that any 169.254.C.D would be carried on with this routing record. So I deleted the faulty line
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route -4 delete 169.254.46.68 |
then issued
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route -4 add 169.254.0.0 mask 255.255.0.0 0.0.0.0 metric 3 if 10 |
10 being my Ethernet adapter as can be seen on the top “route -4 print”. Tricky part for me was to get the gateway was “On-link” in the routing table, after a couple of tries I figured using “0.0.0.0″ as the gateway just makes it “On-link”. After all, whole point of AUTO IP networks is that there’s no router present :)
Now, it works, but after reboots these could be screwed up all over again (despite the fact that route has -p parameter). We’ll see.