Why is Protocol-41 traffic being blocked?

[ambo]

I'm using the 'unrestricted' APN. Protocol-41 traffic is being dropped by a firewall somewhere on Vodacom's network.

The traffic is not even being properly rejected - just silently dropped. This means my connection is very slow while the connection waits to timeout.

 

[guest2013-1]

Don't use wireless for mission critical data?

 

[ambo]

Don't use wireless for mission critical data?

HUH? This has nothing to do with mission critical they are *firewalling* a particular protocol on the *unrestricted* APN.

 

[ambo]

*bump*

 

[VodacomData]

Replied to your Pm

 

[ginggs]

<top secret stuff going on behind the scenes>

 

[ambo]

<top secret stuff going on behind the scenes>

I wish so far its just the standard 'PM VD for help' stuff...

I seem to have got a collective blank stare from the forumites though

 

[fismail]

What are you using that uses port 41 ?

I find some results on google.

http://compnetworking.about.com/od/tcpip/l/blports_gl10.htm

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

I wish so far its just the standard 'PM VD for help' stuff...

I seem to have got a collective blank stare from the forumites though

 

[ambo]

What are you using that uses port 41 ?

Did I say port 41? I was waiting for that...

No - protocol-41 is a transport layer protocol used for IPv6 encapsulation.

edit: big up to the VC engineer for figuring that out on his own - got a test scheduled later to figure out whats going on.

 

[fismail]

My bad. Misread. Are you sorted out as yet ?

Did I say port 41? I was waiting for that...

No - protocol-41 is a transport layer protocol used for IPv6 encapsulation.

edit: big up to the VC engineer for figuring that out on his own - got a test scheduled later to figure out whats going on.

 

[ambo]

My bad. Misread. Are you sorted out as yet ?

No worries.

Just spent 30 mins doing packet dumps with a VC engineer. The packets that i'm pushing into my E220 never make it to their network core so they need to do some more digging.

 

[fismail]

Good to see you being assisted.

No worries.

Just spent 30 mins doing packet dumps with a VC engineer. The packets that i'm pushing into my E220 never make it to their network core so they need to do some more digging.

 

[ambo]

So after many hours of testing and many megs worth of pings...

Vodacom is unable to find my protocol-41 traffic on their network

The ping packets leave my PC and show up in my packet dumps but the techies at VC seem to be unable to find the packets anywhere on their firewalls or anywhere else on the network.

They've now told me that I have to put my traffic inside a VPN... Thats a little tough since the vast majority of the servers around the world won't let me randomly setup VPN connection to them...

 

[VodacomData]

Hi Ambo

Feedback with regards to you query:

Tech support is able to see the traffic and have identified where it is being dropped.
The UDP encapsulation was suggested as a possible temporary workaround in the longer term, more transparent solution is being sought.

Regards
VodacomData