OpenVPN over iBurst

K

kaspaas

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Hi,

I'm using OpenVPN to connect to my office server (connected with Telkom 4Mb ADSL) from whereever I'm in the world.

No problem with VC 3G, (slow on GPRS, but still working if you have the patience!). It even worked from a contractors camp in the dumps of Kazakstan.

But it won't work reliably with iBurst.

Emails to support don't get answered.

Does anybody have a solution from prior experience for this?

It is a USB modem.

I'm tied to iBurst at home due to "significant other" having signed a 2-year contract before we met.
 
Last edited:
I have an OpenVPN server at home on my iBurst connection. Have been unable to connect to it for about a week now from any of the broadband connections that I have used.

I have emailed support and received one response back but as yet the issue has not been resolved and I still cannot connect to my home network.
 
Will have a look at my documentation, but I assume it is a port shaping issue as FTP connections via iBurst was also blocked for a week or two...
 
Tested & operational

Morning all

I have loaded up a OpenVPN connection to office iBurst and I am connected and using without failure.

Please send me your contact detail so that I may be of further assistance.

Thank you

Cheers

Shaun

[email protected]
084-978-0790
 

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Thanks Shaun!

Shaun spent some quality time explaining in detail to me how to tweak the MTU settings.

Problem seems to have vanished.

Will stress test the system over the next few weeks.

Many thanks!
 
Morning all

Pleasure kaspaas.

There are no shaping rules on VPN or FTP.

We always find the following to be a factor in VPN.
1. MTU settings - should be 1364
2. Quality of signal - not quantity as indicated by the Dashboard.

Hope this puts 'Shaping' to bed.

Any further queries please feel free to contact me.

Cheers

[email protected]
084-978-0790
 
iburst said:
We always find the following to be a factor in VPN.
1. MTU settings - should be 1364
2. Quality of signal - not quantity as indicated by the Dashboard.
Click to expand...
Interesting.... not in my case apparently. Technician came out to my place and we did a whole bunch of tests. Signal strength, speed tests, SNR, etc, etc. Everything seems dandy.

Did some ping tests and tried connecting to the VPN. Interesting that sometimes it worked great and other times it was completely dead... depending on the IP that I got when I dialed up the connection on the VPN server. :confused: Something not right there.

Something else that concerned me a lot is the fact that when tracerouting we could see 0% packet loss between me and the PPPoE concentrator. So my link at least as far as the tower was fine. But the next two hops through the iBurst core network were returning packet loss of between 40% and 60%. Do we blame that on the packet shaper or a broken core network?? :sick:

Also turns out that I SHOULD be getting much better speeds than I am with my signal levels. Got an external antenna with clear LOS to the tower and yet both on my modem and the technician's we failed to get more than 600kbps.

iburst said:
Hope this puts 'Shaping' to bed.
Click to expand...
No comment :rolleyes:
 
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