Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




34 posts

Geek


Topic # 109163 13-Sep-2012 14:44 Send private message

Hi,

I've read and absorbed all that I can, attempted numerous times but cannot seem to get this to work. This issue could be DD-WRT, QNAP, Android or simply pebcak - so I hope I've selected the correct forum.

Want: To use VPN on Galaxy S3 (unrooted standard) to connect to home network.

At home: DD-WRT v24-sp2 (04/13/11) std (SVN revision 16785) on Buffalo WZR HP AG300H which is bridged to Draytek Vigor 120

NAS: Qnap TS-412 Turbo NAS (3.7.3 Build 20120801)

On the DD-WRT router I can confirm that:

1. PPTP is routed correctly - port 1723 TCP (configured via UPNP on QNAP).
2. VPN Passthrough is enabled.

On the QNAP NAS I can confirm that:

1. PPTP VPN Server is enabled.
2. Authentication: MS-CHAPV2
3. Encryption: AES 128
4. I have configured a vpn user and password.

On the Galaxy S3:

1. The login and password are correct.
2. Type: PPTP
3. PPP encryption (MPPE) is ticked.
4. On 2Degrees.


In the Syslog I have this entry when I attempt to connect
* masked DST IP address
* bob is the dd-wrt router not the qnap.

<4>1 2012-09-13T14:19:50+12:00 bob kernel - - - kernel: [  533.440000] DROP IN=ppp0 OUT= MAC= SRC=118.149.64.50 DST=122.57.***.** LEN=60 TOS=0x00 PREC=0x00 TTL=53 ID=2173 DF PROTO=47

Which is interesting seeing as my IP address is 118.149.114.241 when I use Whatismyip in a browser on the mobile. What is the IP different?

Anyone able to point me in the right direction? What am I missing?

Thank you,
M.


Create new topic
368 posts

Ultimate Geek


  Reply # 686504 15-Sep-2012 18:25 Send private message

Dude, I share your pain, I've been there done that.

IP protocol 47 is GRE (General Routing Encapsulation) and you'll need to make sure this protocol has access on your path to the NAS which you have enabled as a PPTP server.

An IP protocol should not be confused with a TCP/UDP port 'number' as these represent an access layer one level up.

You'll need IP port 1723 and IP protocol 47 forwarded to the NAS too.

I used Tomato firmware on a Linksys E4200v1, as, well, I could, my router allows it and thus reduces the need to open additional TCP/UDP ports on the NAS. My PPTP 'tunnel' ends at the router.

You may be able to configure a PPTP server on the Buffalo WZR HP AG300H using DD-WRT and thus reduce the requirement for port forwarding.

Create new topic



Twitter »
Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when new jobs are posted to our jobs board:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:




News »

Trending now »
Hot discussions in our forums right now:

Entire house HTPC concept
Created by InfiniteLoop, last reply by kiwijunglist on 23-May-2013 23:15 (25 replies)
Pages... 2


Cannabis is illegal yet we have really strong 'legal highs' ?
Created by qwerty7, last reply by freitasm on 23-May-2013 23:20 (74 replies)
Pages... 3 4 5


Fecked up religious people strike again :-(
Created by Mark, last reply by Dratsab on 24-May-2013 05:23 (44 replies)
Pages... 2 3


Xbox One
Created by DjShadow, last reply by jtbthatsme on 24-May-2013 01:04 (58 replies)
Pages... 2 3 4


Truenet Article - VoIP in New Zealand ----- Based on what Mr Butt ???
Created by maverick, last reply by Foiler on 23-May-2013 23:23 (18 replies)
Pages... 2


A new project coming to Geekzone
Created by freitasm, last reply by hamish225 on 23-May-2013 19:14 (278 replies)
Pages... 17 18 19


HTC One (2013) owners' discussion
Created by Dingbatt, last reply by Brendan on 24-May-2013 03:05 (1547 replies)
Pages... 102 103 104


"igov" online passport renewals
Created by Linuxluver, last reply by profrink on 22-May-2013 22:22 (29 replies)
Pages... 2



Geekzone Jobs »
Most recent NZ jobs in technology:

Systems Analyst - mix BA, design & infrastructure
Posted 23-May-2013 22:28

Network Engineer - Urgent Requirement
Posted 23-May-2013 22:28

Senior Java developer - Contract Role
Posted 23-May-2013 22:28

Enterprise Architect
Posted 23-May-2013 22:28

Computer Programmer
Posted 23-May-2013 21:28

Software Developer - Queenstown
Posted 23-May-2013 19:28

Network Performance Engineer
Posted 23-May-2013 19:28


Geekzone Live »
Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.