DNS Support #1

felixge · 2013-03-28T16:21:11Z

Hi Diego,

just tried out ardrone-wpa2 and it's working like a charm! Thank you so much for doing this!!!

Did you figure out how to get DNS resolution working? I just tried adding my router to /etc/resolv.conf (which required me to rm the broken symlink that was in there), but it doesn't work. Any idea?

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daraosn · 2013-03-28T16:33:37Z

Thanks Felix, glad it has worked cool for you :-)

I'm not 100% sure but I think we need more cross-compile work to be done for: host, bind and/or nslookup commands.

Anyway, I'll do some research tonight and get back with more info.

felixge · 2013-03-28T17:01:14Z

@daraosn no worries / no rush. I don't need it right now, but having this eventually would be nice to really do internet stuff with the drone!

daraosn · 2013-03-29T02:25:22Z

I'm on this. Found something useful (not 100% related, but really cool)

DHCP client:
/sbin/udhcpc -i ath0

felixge · 2013-03-29T10:17:12Z

/sbin/udhcpc -i ath0

So this could be used to make the router assign an IP to the drone?

daraosn · 2013-03-29T18:05:24Z

Exactly :)

I just pushed a commit. Now is even simpler to connect the drone to a router. You can set Static DHCP leases with the Drone's MAC address and have always the same IP when it connects.

I'm still working on the DNS resolution issue.

daraosn · 2013-03-29T20:15:55Z

Some progress:

BusyBox actually has nslookup but you're right, /etc/resolv.conf won't help.

Even when you do nslookup google.com 8.8.8.8 using google's dns server, it won't work. I found some stuff that might lead to the fix:
https://code.google.com/p/android-sapphire/issues/detail?id=19
https://sites.google.com/site/delocatedsystems/home/announcements/wgetresolutionfixed

felixge · 2013-03-29T20:18:08Z

@daraosn nice work! So seems like this guy has a patch but isn't giving it out? : )

felixge · 2013-03-29T20:22:20Z

Just tried the DHCP support which seems to work. However, what's the best way to find the new IP of the drone? I had to get it from my router, but IMO this may be unpractical in some cases.

daraosn · 2013-03-29T20:27:24Z

@felixge yeah, unfortunately it seems like he won't give it for free, but some more people reporting problem, more research to be done.

Regarding DHCP, I just set a DHCP Static Lease for the AR Drone MAC address. Then whenever you connect to it the network, the router will take care of always giving the same IP.

I agree though that it might be unpractical in some cases, and that's why it's still possible to pass the -a flag to give the desired address and avoid DHCP :-)

felixge · 2013-04-03T08:21:53Z

I agree though that it might be unpractical in some cases, and that's why it's still possible to pass the -a flag to give the desired address and avoid DHCP :-)

Yeah, that's good enough.

antlai · 2013-06-16T22:35:18Z

I managed to get DNS working by copying libresolv-2.15.so (from armtools/arm-none-linux-gnueabi/libc/lib) in /lib and creating the link /lib/libresolv.so.2 to it

daraosn · 2013-06-17T00:39:41Z

I can confirm is working!! Thanks for sharing @antlai. Now to install 3G stick.

➜  ardrone-wpa2 git:(master) ✗ telnet 192.168.1.101
Trying 192.168.1.101...
Connected to drone1.
Escape character is '^]'.



BusyBox v1.14.0 () built-in shell (ash)
Enter 'help' for a list of built-in commands.

# wget http://google.com
wget: bad address 'google.com'
# route add default gw 192.168.1.1 ath0
# wget -O - http://www.google.com/
Connecting to www.google.com (173.194.113.179:80)
-                    100% |*******************************|     0  --:--:-- ETA<!doctype html><html itemscope="itemscope" itemtype="http://schema.org/WebPage"><head><meta itemprop="image" content="/images/google_favicon_128.png"><title>Google</title><script>(function(){
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-                    100% |*******************************| 10906  --:--:-- ETA
#

felixge · 2013-06-18T12:33:40Z

Woa! This is huge! @antlai thank you so much for sharing!

wildflower · 2019-06-02T07:13:28Z

Hi
I've tried adding the route to my gateway, but still get the 'bad address' error
I"m guessing there's something else missing in my ip tables

# ip r
192.168.1.1 dev ath0 
192.168.1.0/24 dev ath0  src 192.168.1.118 
127.0.0.0/8 dev lo 
default via 192.168.1.1 dev ath0 
# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.1.1     0.0.0.0         255.255.255.255 UH    0      0        0 ath0
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 ath0
127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 lo
0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 ath0
# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.1.1     *               255.255.255.255 UH    0      0        0 ath0
192.168.1.0     *               255.255.255.0   U     0      0        0 ath0
127.0.0.0       *               255.0.0.0       U     0      0        0 lo
default         192.168.1.1     0.0.0.0         UG    0      0        0 ath0
# ping www.google.com
ping: bad address 'www.google.com'

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DNS Support #1

DNS Support #1

felixge commented Mar 28, 2013

daraosn commented Mar 28, 2013

felixge commented Mar 28, 2013

daraosn commented Mar 29, 2013

felixge commented Mar 29, 2013

daraosn commented Mar 29, 2013

daraosn commented Mar 29, 2013

felixge commented Mar 29, 2013

felixge commented Mar 29, 2013

daraosn commented Mar 29, 2013

felixge commented Apr 3, 2013

antlai commented Jun 16, 2013

daraosn commented Jun 17, 2013

felixge commented Jun 18, 2013

wildflower commented Jun 2, 2019

DNS Support #1

DNS Support #1

Comments

felixge commented Mar 28, 2013

daraosn commented Mar 28, 2013

felixge commented Mar 28, 2013

daraosn commented Mar 29, 2013

felixge commented Mar 29, 2013

daraosn commented Mar 29, 2013

daraosn commented Mar 29, 2013

felixge commented Mar 29, 2013

felixge commented Mar 29, 2013

daraosn commented Mar 29, 2013

felixge commented Apr 3, 2013

antlai commented Jun 16, 2013

daraosn commented Jun 17, 2013

felixge commented Jun 18, 2013

wildflower commented Jun 2, 2019