Tuesday, May 27, 2025

Re: How to prevent an interface from sending packets with its own hardware address?

On 5/27/25 14:43, Heinrich Rebehn wrote:
> But occasionally I get "No audio" on incoming calls. But it is not easy to reproduce.
Yes, it depends on the codecs being used. Got a lot of weird problems as
well.
> Having had a hacked PBX once, which was trying to make international calls, i really hesitate to put it into the wild unprotected.
Some kids will keep trying to brute force your credentials forever - and
sell the stolen credentials to call centers in India. Rate-limit them,
or geoblock them. It was my solution. And can be done in the bridge or
in the PBX itself. Even with the PBX server itself having a public IP
address.

--
Fabio

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