Shockingly many fundamental errors in Wi-Fi router from D-Link

Using the CD-router testplatform from QA Cafe I investigate the basic functionality of a low-end Wi-Fi router from D-Link. To my surprise I uncover errors in almost all the basic features of the device: NAT, routing, DNS and firewall. I am appalled that a device with that many basic errors is even on the market :( Contents: 0:50 About the D-Link DIR-809 01:04 Marketing rant 04:10 Teardown and a look at the hardware 08:06 Walkthrough of the GUI and settings 19:54 The tests to be performed 20:36 Packets are being dropped if IP options are used 21:01 The test setup 26:30 NAT failure 26:50 Brief explanation of IPv4 src, dst address and port and TTL 32:45 Brief explanation of NAT (Network Address Translation) and IP header manipulation 41:43 More bad NAT errors!! 43:04 Why it is important to test for “non typical traffic types” 45:21 Firewall error!! 47:41 Basic routing error!! 49:40 DNS related errors! 54:08 Recap and conclusion