Kindle with Mac Wi-Fi sharing

running · 01-18-2011, 09:19 AM

I got trouble with getting Wi-Fi sharing (or, as Apple calls it, "Internet Sharing via AirPort") on my Mac Mini working with Kindle (while it works on iPhone).

The resolution was simple, but I thought I will let you know.

First, you have to actually keep the recommended lengths of the password (for 40-bit WEP 5 characters, for 128-bit WEP 13 characters)

then, you have to manually enter the IP addresses to Kindle by selecting "static" in the Kindle Wi-Fi menu, since the DHCP doesn't seem to work. I did it by connecting iPhone to the network and then rewriting the adresses, but if you don't have iPhone (or anything similar), it worked with this data:

IP address: 10.0.2.3
subnet : 255.255.255.0
router: 10.0.2.1
DNS: 10.0.2.1

...and it should work.

kranu · 01-28-2011, 09:50 PM

Hi,

I'm trying to get this to work, without success =(

Are the router/DNS entries your IP address?

running · 01-30-2011, 05:38 AM

Hello,

I am not on my mac now, so I won't help you that much, but no, these are the default addresses.

Sorry to hear it doesn't work for you

tomsem · 01-30-2011, 05:33 PM

There's apparently a bug of long standing with OS X's DHCP service that causes this. Hence the static address workaround (I think I tried this and it worked - but generally I connect to a wifi router rather than OS X Internet Sharing).

Unfortunately it seems all of Apple's developers are working on iOS now so we may never see a fix for the DHCP issue.

codegen · 04-13-2011, 12:46 PM

Actually the mac sets up a WAP node. Windows internet sharing uses ad-hoc. The problem is that the kindle aways uses 0 in the "number of seconds since boot" field of the dhcp request packet, and the mac has a filter of 4. So it ignores the DHCP request from the kindle (and the xbox, and the Nintendo). If you change the filter to 0, then the mac happily hands out the addresses. How to do it:

1. start internet sharing
2. cp /etc/bootpd.plist . ## don't forget the "." that means the current directory!!
3. stop internet sharing
4. open bootpd.plist
5. change reply_threshold_seconds to 0
6. sudo cp bootpd.plist /etc
7. start internet sharing

Normally the bootpd.plist is created and destroyed as you start up and stop internet sharing. If the file already exists, it uses the values in it. This can cause problems if, for example you move your laptop to a network that uses the same network values as the plist. So if you do this at work with an ethernet address of a.b.c.x, the bootpd.plist will have addresses of 10.0.2.x. If you go home and have a home router that also uses 10.0.2.x, then the mac will get confused. However, if your home network uses 192.168.0.x, then you will still be ok.

01-18-2011, 09:19 AM	#1
running Member Posts: 14 Karma: 560 Join Date: Jan 2011 Device: Kindle	Kindle with Mac Wi-Fi sharing I got trouble with getting Wi-Fi sharing (or, as Apple calls it, "Internet Sharing via AirPort") on my Mac Mini working with Kindle (while it works on iPhone). The resolution was simple, but I thought I will let you know. First, you have to actually keep the recommended lengths of the password (for 40-bit WEP 5 characters, for 128-bit WEP 13 characters) then, you have to manually enter the IP addresses to Kindle by selecting "static" in the Kindle Wi-Fi menu, since the DHCP doesn't seem to work. I did it by connecting iPhone to the network and then rewriting the adresses, but if you don't have iPhone (or anything similar), it worked with this data: IP address: 10.0.2.3 subnet : 255.255.255.0 router: 10.0.2.1 DNS: 10.0.2.1 ...and it should work.

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01-28-2011, 09:50 PM	#2
kranu I <3 my Kindle Posts: 528 Karma: 51332 Join Date: Nov 2010 Location: United States Device: Kindle 3G + WiFi	Hi, I'm trying to get this to work, without success =( Are the router/DNS entries your IP address?

01-30-2011, 05:38 AM	#3
running Member Posts: 14 Karma: 560 Join Date: Jan 2011 Device: Kindle	Hello, I am not on my mac now, so I won't help you that much, but no, these are the default addresses. Sorry to hear it doesn't work for you

01-30-2011, 05:33 PM	#4
tomsem Grand Sorcerer Posts: 6,477 Karma: 26425959 Join Date: Apr 2009 Location: USA Device: iPhone 15PM, Kindle Scribe, iPad mini 6, PocketBook InkPad Color 3	There's apparently a bug of long standing with OS X's DHCP service that causes this. Hence the static address workaround (I think I tried this and it worked - but generally I connect to a wifi router rather than OS X Internet Sharing). Unfortunately it seems all of Apple's developers are working on iOS now so we may never see a fix for the DHCP issue.

04-13-2011, 12:46 PM	#5
codegen Junior Member Posts: 2 Karma: 10 Join Date: Apr 2011 Device: kindle	Actually the mac sets up a WAP node. Windows internet sharing uses ad-hoc. The problem is that the kindle aways uses 0 in the "number of seconds since boot" field of the dhcp request packet, and the mac has a filter of 4. So it ignores the DHCP request from the kindle (and the xbox, and the Nintendo). If you change the filter to 0, then the mac happily hands out the addresses. How to do it: 1. start internet sharing 2. cp /etc/bootpd.plist . ## don't forget the "." that means the current directory!! 3. stop internet sharing 4. open bootpd.plist 5. change reply_threshold_seconds to 0 6. sudo cp bootpd.plist /etc 7. start internet sharing Normally the bootpd.plist is created and destroyed as you start up and stop internet sharing. If the file already exists, it uses the values in it. This can cause problems if, for example you move your laptop to a network that uses the same network values as the plist. So if you do this at work with an ethernet address of a.b.c.x, the bootpd.plist will have addresses of 10.0.2.x. If you go home and have a home router that also uses 10.0.2.x, then the mac will get confused. However, if your home network uses 192.168.0.x, then you will still be ok.

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