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.
Buying anything on Amazon? Please use the Geekzone Amazon aff link.




1861 posts

Uber Geek
+1 received by user: 248


Topic # 104692 20-Jun-2012 09:58 Send private message

I'm still trying to get a half bridge setup working correctly and having some issues.

First background: An all in one TP-Link modem\router works fine. I have a master filter installed.

After my previous RTA1320 started behaving oddly, I found another one on trademe. It was sold as new\unused and indeed it looks in pristine condition so I don't think there's anything wrong with it. TBH I took the old one apart and couldn't see anything wrong with it (no bulging capacitors, etc) But the new is exhibiting the exact same issues as the previous one when setup in half-bridge with a gargoyle router. Essentially:

1)  I cannot load certain websites at all (vodafone.co.nz, amazon.com) while others will load

2) If I do a speedtest and select vodafone as the server, the ping seems good, but then it fails to initiate the data download completely.

3) If I select one of the other servers for the speedtest it seems to work ok


And this all happens if I plug directly into the modem, taking the gargoyle router out of the picture.

I seem to remember somewhere reading that certain modem\DSLAM(??) combinations cause issues, is this a possibility?

View this topic in a long page with up to 500 replies per page Create new topic
 1 | 2
20078 posts

Uber Geek
+1 received by user: 1669

Moderator
Trusted
Biddle Corp
Subscriber

  Reply # 643640 20-Jun-2012 10:02 Send private message

First guess would be your MTU is wrong




1861 posts

Uber Geek
+1 received by user: 248


  Reply # 643660 20-Jun-2012 10:24 Send private message

Hmm, ok I will check what it's set to on the modem\router that works.

I think it defaults to 1500 on the RTA1320. Are there any others I should try? I can't see any definitive instructions on the vodafone site.

192 posts

Master Geek


  Reply # 643667 20-Jun-2012 10:36 Send private message

Are you on the latest firmware?  I recall having an issue with a Dynalink modem where I could never get to certain websites such as adobe.com when in half bridge mode.  It turned out the issue was that adobe.com (and some other websites) have IP addresses in the 192.x.x.x range.  The firmware must have been assuming this entire range was local which is not the case.



1861 posts

Uber Geek
+1 received by user: 248


  Reply # 643670 20-Jun-2012 10:39 Send private message

I'm on the original (3.30j?) firmware. Where would I get the latest firmware. Searching for it I see references to 3.64u and 3.64y but also reports that Dynalink don't release it; can anybody email me a copy? :)



1861 posts

Uber Geek
+1 received by user: 248


  Reply # 643671 20-Jun-2012 10:40 Send private message

Nvm I found some downloads here:

http://www.cormain.com.au/tech/download.php

Any recommendations for which one?

20078 posts

Uber Geek
+1 received by user: 1669

Moderator
Trusted
Biddle Corp
Subscriber

  Reply # 643673 20-Jun-2012 10:41 Send private message

dannyres: Are you on the latest firmware?  I recall having an issue with a Dynalink modem where I could never get to certain websites such as adobe.com when in half bridge mode.  It turned out the issue was that adobe.com (and some other websites) have IP addresses in the 192.x.x.x range.  The firmware must have been assuming this entire range was local which is not the case.


A public website can't have a 192.x.x.x IP address, the entire /16 range is reserved for private use only.


20078 posts

Uber Geek
+1 received by user: 1669

Moderator
Trusted
Biddle Corp
Subscriber

  Reply # 643674 20-Jun-2012 10:42 Send private message

sidefx: Hmm, ok I will check what it's set to on the modem\router that works.

I think it defaults to 1500 on the RTA1320. Are there any others I should try? I can't see any definitive instructions on the vodafone site.


Your DSL MTU will be lower than this. I don't know what Vodafone use but if you're on EUBA you could try 1492.

192 posts

Master Geek


  Reply # 643675 20-Jun-2012 10:43 Send private message

sbiddle:
dannyres: Are you on the latest firmware?  I recall having an issue with a Dynalink modem where I could never get to certain websites such as adobe.com when in half bridge mode.  It turned out the issue was that adobe.com (and some other websites) have IP addresses in the 192.x.x.x range.  The firmware must have been assuming this entire range was local which is not the case.


A public website can't have a 192.x.x.x IP address, the entire /16 range is reserved for private use only.


Try pinging adobe.com - I get:

Pinging adobe.com [192.150.16.117] with 32 bytes of data:
Reply from 192.150.16.117: bytes=32 time=184ms TTL=240

192 posts

Master Geek


  Reply # 643677 20-Jun-2012 10:45 Send private message

sidefx: Nvm I found some downloads here:

http://www.cormain.com.au/tech/download.php

Any recommendations for which one?


Depending if you have the RTA1320v1 or RTA1320v2 use the (NZ) firmware listed on one of these links:

http://support.netcommwireless.com/product/fixed-line/rta1320
http://support.netcommwireless.com/product/xdsl/rta1320-rev2

1800 posts

Uber Geek
+1 received by user: 361

Trusted
Spark NZ

  Reply # 643678 20-Jun-2012 10:46 Send private message

sbiddle:
dannyres: Are you on the latest firmware?  I recall having an issue with a Dynalink modem where I could never get to certain websites such as adobe.com when in half bridge mode.  It turned out the issue was that adobe.com (and some other websites) have IP addresses in the 192.x.x.x range.  The firmware must have been assuming this entire range was local which is not the case.


A public website can't have a 192.x.x.x IP address, the entire /16 range is reserved for private use only.



Nope, only 192.168.0.0/16 is private, the rest of the 192 range is public.

http://en.wikipedia.org/wiki/Private_network




I work for Spark, but as always my views are my own.

2749 posts

Uber Geek
+1 received by user: 428


  Reply # 643679 20-Jun-2012 10:47 Send private message

sbiddle:

A public website can't have a 192.x.x.x IP address, the entire /16 range is reserved for private use only.



Off the top of my head (yeah, probably wrong!) I thought it was 192.168.0.0 / 16 that was reserved for private not 192.0.0.0 /8 so there could be public addresses starting with 192.

EDIT: I see @plambrechtsen beat me to it.

20078 posts

Uber Geek
+1 received by user: 1669

Moderator
Trusted
Biddle Corp
Subscriber

  Reply # 643681 20-Jun-2012 10:53 Send private message

Oops I wasn't thinking when I posted that, got the /16 bit right though!  Smile

1800 posts

Uber Geek
+1 received by user: 361

Trusted
Spark NZ

  Reply # 643683 20-Jun-2012 10:54 Send private message

sbiddle: Oops I wasn't thinking when I posted that, got the /16 bit right though!  Smile


'Spose I'll let you go on that one Laughing




I work for Spark, but as always my views are my own.



1861 posts

Uber Geek
+1 received by user: 248


  Reply # 644015 20-Jun-2012 20:44 Send private message

Sadly neither of these ideas has worked. I've tried MTU at 1492 and the updated firmware. Also had a look at the settings on the modem that works; I haven't changed the MTU on that, and it says it defaults to 1480.

Now.. the bizarre bit is that the RTA1320 was configured to use IP address 192.168.1.1... I've now unplugged the RTA1320 and reconnected to the other modem but I can still ping 192.168.1.1...?

tracert to 192.168.1.1 gives:


Tracing route to 192.168.1.1 over a maximum of 30 hops

1 <1 ms <1 ms <1 ms 192.168.51.1
2 25 ms 24 ms 26 ms be2-100.bras1ldv.akl.vf.net.nz.129.109.203.in-ad
dr.arpa [203.109.129.45]
3 23 ms 23 ms 23 ms be5-100.ppnzldv01.akl.vf.net.nz.129.109.203.in-a
ddr.arpa [203.109.129.46]
4 25 ms 25 ms 24 ms te0-2-0-7-131.ppnzftc01.akl.vf.net.nz [203.109.1
80.5]
5 25 ms 25 ms 25 ms gi15-1-0-131.akl-ftc-edge2.akl.vf.net.nz [203.10
9.180.6]
6 25 ms 28 ms 31 ms gi6-0-0.akl-grafton-edge1.ihug.net [203.109.143.
101]
7 26 ms 25 ms 25 ms 192.168.1.1

Trace complete.

29 posts

Geek


  Reply # 644038 20-Jun-2012 21:49 Send private message

This sounds like a routing issue.  Have you checked the routing table for your modem?
Specifically, are routes via the RTA1320's internal interface (br0) correctly limited to RFC1918 ranges?  The modem's public IP address should also be routed via br0 when it's operating in half-bridged mode.

 1 | 2
View this topic in a long page with up to 500 replies per page 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 tech item prices are listed in our price comparison site:





Trending now »

Hot discussions in our forums right now:

Netflix officialy launching in NZ in March
Created by jarj, last reply by tdgeek on 21-Nov-2014 19:08 (97 replies)
Pages... 5 6 7


Current Netflix payment method as of Nov 14 - Cant pay
Created by andynz, last reply by Regs on 24-Nov-2014 17:00 (29 replies)
Pages... 2


Click Monday Deals
Created by mrtoken, last reply by Krishant007 on 24-Nov-2014 17:11 (25 replies)
Pages... 2


Gull Employment Dispute.
Created by networkn, last reply by sir1963 on 24-Nov-2014 17:30 (90 replies)
Pages... 4 5 6


Voda VDSL, Horrid offnet performance.
Created by TimA, last reply by NonprayingMantis on 25-Nov-2014 06:51 (26 replies)
Pages... 2


SEO spammers
Created by freitasm, last reply by jamesrt on 24-Nov-2014 16:09 (25 replies)
Pages... 2


Free 1gb data with $19 combo until end of Jan 2015 (1.5gb total)
Created by eXDee, last reply by un1qo on 24-Nov-2014 14:51 (21 replies)
Pages... 2


SSD hard drive in aging HTPC disappointingly slow
Created by watman, last reply by joker97 on 23-Nov-2014 22:02 (20 replies)
Pages... 2



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.