[AusNOG] Telstra NBN - DSCP Filtering

[Russell Langton]

Hi Dino,

I've sent you an email directly so we can work-though this.

On Fri, Aug 7, 2015 at 2:02 PM, Dino Sosic <Dino.Sosic at datacom.com.au>
wrote:

> Hi guys,
>
>
>
> Something I discovered after an extensive tshooting. Telstra service on
> NBN ( TID Service ) actually drops all non 0 marked DSCP markings. They say
> it’s actually NBN doing that, but I do not see this on other providers. I
> had phones trying to register across the IPsec through that NBN, that were
> failing to do so as long as they were sending marked packets (phones mark
> it EF by default ). Once I remarked the voice traffic to DSCP 0(default),
> the SIP registered immediately. Some heavy traffic manipulation or what? J
> So much for unhindered transport from A to B.
>
> Interesting part was also, even though the voice traffic is inside the ESP
> packet, those packets get dropped, I am guessing due to size+DSCP marking
> copied to ESP packet. Anyone seen this before?
>
>
>
> Dino
> #####################################################################################
> Confidentiality and Privilege Notice This document is intended solely for
> the named addressee. The information contained in the pages is confidential
> and contains legally privileged information. If you are not the addressee
> indicated in this message or responsible for delivery of the message to
> such person, you may not copy or deliver this message to anyone, and you
> should destroy this message and kindly notify the sender by reply email.
> Confidentiality and legal privilege are not waived or lost by reason of
> mistaken delivery to you.
> #####################################################################################
>
>
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20150807/18c2a228/attachment.html>