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Occasional Contributor
Occasional Contributor

Australian DNS

What is wrong with OPTUS DNS in Australia. This is the 4th time within a month that I need to VPN overseas to surf the Web

 

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11 Replies
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Honoured Contributor
Honoured Contributor

Re: Australian DNS

You could also try setting the DNS to 8.8.8.8 in your network settings (Google DNS)

 

Peter Gillespie

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New Contributor
New Contributor

Re: Australian DNS

yer ... tried that (changing to 8.8.8.8) -- not much joy - traceroute from linux box - appears to get hung up on 49.198.0.1, which is:

"49.198.0.0 - 49.198.0.255 is an IP address range owned by SingTel Optus Pty Ltd and located in Australia"

 

traceroute to www.google.com (172.217.25.132), 64 hops max
1 192.168.1.1 0.501ms 0.435ms 0.388ms
2 49.198.0.1 9.184ms 10.023ms 8.144ms
3 * * *
4 * * *
5 * * *
6 59.154.142.250 22.075ms 21.269ms 21.874ms
7 74.125.147.174 20.984ms 19.968ms 20.756ms
8 108.170.247.49 22.215ms 21.064ms 25.980ms
9 108.170.247.81 48.769ms 25.950ms 32.415ms
10 74.125.37.201 29.660ms 22.721ms 22.332ms
11 172.217.25.132 22.679ms 21.129ms 22.105ms

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Occasional Contributor
Occasional Contributor

Re: Australian DNS

Not using Optus DNS. But there is an issue with Optus as a can suf via VPN 

 

the problem has disappeared 

 

I await its return

 

that is if I haven’t switched providers when NBN roles out

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Trusted Contributor
Trusted Contributor

Re: Australian DNS

Given your trace went all the way, this would mean that it's not Optus having trouble but the overseas provider or cloud provider.

 

Try using 1.1.1.1 for DNS and see how you go.

I'm a Yes-Crowd Contributor, not an Optus Employee, and I contribute on a voluntary basis. Did someone on Yes Crowd answer your question? Did they share a great tip Please remember to acknowledge their awesomeness by throwing a Kudo and or Accepted Solution their way.
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New Contributor
New Contributor

Re: Australian DNS

Traceroute also blows up on local sites - any local site. I guess there might be a chance that everyone else has a dodgy configuration... or it cooooould be me!

 

My OPTUS cable modem used to be bullet-proof - NBN requires resetting something on average every 2 days. I'd have prefered the stable slower speed.

 

traceroute to www.qut.edu.au (202.9.95.188), 64 hops max
1 192.168.1.1 0.720ms 0.379ms 0.304ms
2 49.198.0.1 9.114ms 9.398ms 9.769ms
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New Contributor
New Contributor

Re: Australian DNS

+ 1.1.1.1 & flush produced no change... 😞

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Occasional Contributor
Occasional Contributor

Re: Australian DNS

I dont know - perhaps they set the dns server to allow updates... and someone keeps poisoning it....

An alternative dns that always seems to work is 8.8.8.8 - or googles dns server... 

Two nights ago all samsung websites were not accessable...

1 solution to this would be to set your devices nic to use 8.8.8.8

Another - get samsung to directly query their own static ips for connectivity rather than use dns resolution... if the ip changes - update it ota as it changes... there is no reason for a company the size of samsung to use dns servers at all for any of their apps...

Also what the hell is the setting in andriod that allows one to choose a Private DNS? It seems to only allow "automatic"...lol... "off"... hmm, or type it in... oh but if you type it in you have to type in a dns lookup - ya cant use an ip number... wtf?

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Respected Contributor
Respected Contributor

Re: Australian DNS


Another - get samsung to directly query their own static ips for connectivity rather than use dns resolution... if the ip changes - update it ota as it changes... there is no reason for a company the size of samsung to use dns servers at all for any of their apps...

That's one of the key reasons for DNS, if an IP address changes, it finds the new IP address by doing a DNS lookup. Without DNS, how is a device supposed to find Samsung's new IP if the old IP it used is no longer valid?


Also what the hell is the setting in andriod that allows one to choose a Private DNS? It seems to only allow "automatic"...lol... "off"... hmm, or type it in... oh but if you type it in you have to type in a dns lookup - ya cant use an ip number... wtf?

Private DNS in that case is referring to DNS over TLS, a way of doing DNS over a secure connection, not just setting any arbitrary custom DNS ip address.

 

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Occasional Contributor
Occasional Contributor

Re: Australian DNS

The ota update could happen through a samsung app on the google playstore... 

You dont need to resolve a dns lookup for a public static ip... it is also highly unlickly that samsung will ever sell it or stop useing it.

You only need constant ota updates if its a dynamic public ip.

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