I was wondering if there was a way to only allow my sip signaling ip yet the cisco allow media from other ip? in other words kind of like established related? I dont want to have to add all my customer media gateways IP just me signaling sip server..
Thank for reply just wanted to explain a bit more.. I have a valid ip on this cisco sending calls to it from opensips(media-signaling) I addded access list and allowed ip or signaling server but noticed calls where very short because the cisco was not allowing media from the cutomer un-known ip. Will this resolve this issue?
if so I can put access-list rules back because I found a hacker attempting to make international calls over the cisco.
In my cisco2432 I had this option that does not exist in my 3825
Crosswork Cloud - Crosswork Traffic Analysis - FAQ
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Cisco Champion Radio · S8|E9 Innovations to Achieve a Trustworthy Infrastructure
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