[App_rpt-users] Connectivity issues

[Mike]

While I would agree that many ISP's are allays looking for a chance to 
mess things up for VOIP services,

One has to consider how many complex types of attacks to their vast 
networks they get,

Most times I doubt it is intentional, but not always. Many hacks are 
just looking for the knowledge of what it takes to disrupt communications.

...mike/kb8jnm



On 6/23/2018 2:26 PM, Bryan Fields wrote:
> We've seen some interesting connectivity issues for ATT users recently.  The
> most recent was some sort of ALG proxy on anything destined to udp/4569.  This
> appears to intercept registration traffic and then selectively forward it on.
> I'm at a loss as to why this is happening.
>
> Last weekend ATT stopped allowing one of the subnets for the stats server in
> their routing table too.  That was a bit easier to troubleshoot and easier to
> reach someone on their backbone with clue.  The stats server isn't a critical
> part of the network either.
>
> If you're having any issues, please try registration on port 4566.
>
> I'll stress again, this really isn't an AllStar issue, it's a crappy ISP
> breaking the internet issue.  There's not much the admin team can do if your
> ISP isn't going to route packets properly :(
>