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60 posts

Master Geek


Topic # 151270 19-Aug-2014 23:26
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Hi all,

Ok, let me start off with saying that I'm aware Vodafone has acknowledged the DNS issues that have been plaguing my cable connection for the last 12 months. They even admitted it after about 10 emails to them (shock horror!).

Anyway, to counter this I'm using OpenDNS (also used Google's public DNS for a bit).

Here's the thing though, I have about 80-100 domains registered with WebDrive, and every single one of them will almost all of the time fail to resolve on the first attempt (time out) and then get it on the second attempt DESPITE me using OpenDNS. When I do an nslookup from my computer, it resolves every time.

What on earth is going on? Is VF attempting to resolve my domains first anyway through a local cache or something? It's driving me crazy. In fact, even when I have the domains and their IPs listed in my local hosts file, they STILL fail to resolve the first time. Obviously I've checked other ISPs and there are no issues. 

I'm really confused here. I won't post the URLs yet as I'm not sure if it's against forum rules. 

Really can't be bothered bringing this up with VF again... the first person didn't even know what a DNS was. 



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  Reply # 1111741 20-Aug-2014 05:57
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I've been out of the country for 2 weeks so can't comment on recent issues, but certainly hadn't seen any of their DNS and/or transparent proxy issues since around mid July.

Are you sure the issue isn't your setup?





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Master Geek


  Reply # 1111806 20-Aug-2014 09:21
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I think so, here are some points anyway:

1) Affects all devices on network
2) If a particular device uses a VPN it connects without error to these sites 
3) Router settings: Subnet mask 225.225.225.0, default gateway 203.96.147.1, DNS1 208.67.222.222, DNS2 208.67.220.220, DNS3 0.0.0.0
4) Here's a traceroute from my laptop to one of the affected domains:

1 cisco24907 (192.168.1.1) 2.035 ms 5.368 ms 10.192 ms
2 * * *
3 lo0.internet.ivpn.pe25.telstraclear.net (218.101.61.124) 15.776 ms 18.088 ms 29.767 ms
4 ie2-g-0-0-0.telstraclear.net (203.98.50.2) 30.018 ms 28.129 ms 29.908 ms
5 ge-0-2-0-1.xcore1.acld.telstraclear.net (203.98.50.251) 30.294 ms 26.509 ms 22.178 ms
6 unknown.telstraglobal.net (134.159.174.41) 29.991 ms 28.289 ms
unknown.telstraglobal.net (134.159.174.37) 34.256 ms
7 i-0-0-4-0.sydo-core02.bx.telstraglobal.net (202.84.142.153) 58.304 ms
i-0-0-1-1.sydo-core02.bx.telstraglobal.net (202.84.143.134) 55.746 ms 48.210 ms
8 bundle-ether3.oxf-gw1.sydney.telstra.net (203.50.13.53) 56.307 ms 64.248 ms 53.604 ms
9 bundle-ether17.ken-core10.sydney.telstra.net (203.50.13.77) 50.014 ms 54.551 ms 60.028 ms
10 bundle-ether19.ken-core4.sydney.telstra.net (203.50.11.128) 60.135 ms 52.468 ms 58.982 ms
11 tengigabitethernet7-1.ult2.sydney.telstra.net (203.50.20.51) 60.175 ms 53.842 ms 54.183 ms
12 vocusf.lnk.telstra.net (139.130.73.106) 60.165 ms 48.320 ms 49.940 ms
13 ten-0-0-0-1.cor03.syd03.nsw.vocus.net.au (175.45.72.72) 50.009 ms 58.443 ms 60.344 ms
14 ten-0-1-0.bdr02.syd03.nsw.vocus.net.au (114.31.192.61) 57.331 ms 58.211 ms 60.000 ms
15 175.45.106.2 (175.45.106.2) 59.516 ms 57.717 ms 57.270 ms
16 host145.servermule.com.au (IP is correct here) 52.620 ms 52.208 ms 60.252 ms


 
 
 
 


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  Reply # 1111809 20-Aug-2014 09:30
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Is your netmask a typo or is this what you're using (as it's incorrect)




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Master Geek


  Reply # 1111834 20-Aug-2014 09:56
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Sorry yup just a typo... was rushing out the door.



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Master Geek


  Reply # 1112357 20-Aug-2014 19:56
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Here's another traceroute, see the delays...

1 cisco24907 (192.168.1.1) 2.807 ms 5.733 ms 4.870 ms
2 * * *
3 lo0.internet.ivpn.pe25.telstraclear.net (218.101.61.124) 1670.074 ms * *
4 ie2-g-0-0-0.telstraclear.net (203.98.50.2) 25.048 ms 27.734 ms 29.965 ms
5 * * *
6 unknown.telstraglobal.net (134.159.174.41) 26.398 ms 23.927 ms 24.564 ms
7 i-0-0-4-1.sydo-core02.bx.telstraglobal.net (202.84.142.149) 47.008 ms
i-0-0-4-0.sydo-core02.bx.telstraglobal.net (202.84.142.153) 58.022 ms
i-0-0-4-1.sydo-core02.bx.telstraglobal.net (202.84.142.149) 58.436 ms
8 bundle-ether3.oxf-gw1.sydney.telstra.net (203.50.13.53) 59.502 ms 57.846 ms 59.981 ms
9 bundle-ether17.ken-core10.sydney.telstra.net (203.50.13.77) 60.148 ms 52.156 ms 59.340 ms
10 bundle-ether19.ken-core4.sydney.telstra.net (203.50.11.128) 58.128 ms 48.984 ms 52.870 ms
11 tengigabitethernet7-1.ult2.sydney.telstra.net (203.50.20.51) 43.626 ms 52.236 ms 45.287 ms
12 vocusf.lnk.telstra.net (139.130.73.106) 48.110 ms 48.018 ms 58.412 ms
13 ten-0-0-0-1.cor03.syd03.nsw.vocus.net.au (175.45.72.72) 50.280 ms 47.207 ms 45.713 ms
14 ten-0-1-0.bdr02.syd03.nsw.vocus.net.au (114.31.192.61) 55.156 ms 46.371 ms 60.981 ms
15 175.45.106.2 (175.45.106.2) 57.644 ms 47.838 ms 49.988 ms
16 host145.servermule.com.au (**correct IP here) 49.847 ms 57.638 ms 61.229 ms 

'That VDSL Cat'
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  Reply # 1112371 20-Aug-2014 20:24
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jamesmcd: Here's another traceroute, see the delays...

1 cisco24907 (192.168.1.1) 2.807 ms 5.733 ms 4.870 ms
2 * * *
3 lo0.internet.ivpn.pe25.telstraclear.net (218.101.61.124) 1670.074 ms * *
4 ie2-g-0-0-0.telstraclear.net (203.98.50.2) 25.048 ms 27.734 ms 29.965 ms
5 * * *
 


Likely ICMP packets being dropped or de-prioritized. 

nothing to be concerned about really.


you look pretty consistent other than that.




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Master Geek


  Reply # 1112374 20-Aug-2014 20:27
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The problem remains though... I've got 80-100 sites I basically can't access. And adding them to my local hosts file doesn't help. I've resorted to tethering 4G to make changes to the sites frown

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  Reply # 1112383 20-Aug-2014 20:40
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jamesmcd: The problem remains though... I've got 80-100 sites I basically can't access. And adding them to my local hosts file doesn't help. I've resorted to tethering 4G to make changes to the sites frown


If adding to your local hosts file does not help, its not a dns issue at all.

likely your issue is the infamous TC/VF Cable Proxy.. 




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Master Geek


  Reply # 1112390 20-Aug-2014 20:45
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Part of the reason I've been scratching my head about this. It has the hallmarks of shoddy DNS but doesn't make any sense given a local host entry doesn't help. 

Could you tell me the short version re this cable proxy issue? Is there a workaround?

'That VDSL Cat'
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  Reply # 1112409 20-Aug-2014 21:05
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as im not on cable, or vodafone for that matter..

i can only go off what has been written and talked about on GZ.

so ild suggest reading up on it a bit instead.


http://www.geekzone.co.nz/forums.asp?forumid=44&topicid=110934
http://www.geekzone.co.nz/forums.asp?forumid=44&topicid=29955

Worth pointing out, i have not seen mention of many issues with it of recent.




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  Reply # 1112523 21-Aug-2014 00:07
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What DNS was configured in your router before? Vodafone cable users should have
 
--- 203.97.78.43
--- 203.97.78.44

And moved to correct subforum (why wasn't this created in the Vodafone subforum to start?)







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Master Geek


  Reply # 1112528 21-Aug-2014 00:14
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Yep those were the default. I also tried the old PD ones, VF's DSL ones, and Google Public. In any case it sounds like this cable proxy thing is the issue.

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  Reply # 1112530 21-Aug-2014 00:21
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freitasm:
And moved to correct subforum (why wasn't this created in the Vodafone subforum to start?)



Is it possible for new posts to be searched for keywords such as "Vodafone" or "Spark" and then when you go to post it will ask you if you are sure it's in the right forum since various words were detected.







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  Reply # 1112531 21-Aug-2014 00:30
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solaybro:
freitasm:
And moved to correct subforum (why wasn't this created in the Vodafone subforum to start?)



Is it possible for new posts to be searched for keywords such as "Vodafone" or "Spark" and then when you go to post it will ask you if you are sure it's in the right forum since various words were detected.


what happens when someone says, this is wrong with my vodafone connection.

it worked fine on my spark connection




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Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.


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Ultimate Geek
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  Reply # 1112535 21-Aug-2014 00:42
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hio77:
solaybro:
freitasm:
And moved to correct subforum (why wasn't this created in the Vodafone subforum to start?)



Is it possible for new posts to be searched for keywords such as "Vodafone" or "Spark" and then when you go to post it will ask you if you are sure it's in the right forum since various words were detected.


what happens when someone says, this is wrong with my vodafone connection.

it worked fine on my spark connection


It would suggest you post in the forum for the ISP you are currently with. 







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