ATA186 behind cisco827 Nat 1

[albertmorail]

i want to connect an ata186 to a provider that have a voice gateway and a gatekeeper
but i have my ata behind a cisco nat

how can i do to connect it

the ata Version: v3.1.0 atah323 (Build 040219A)

Any idea ?

many thanks

 

[rtfmdude]

Well, the main problem with voip behind nat is that some addressing information is embedded within the packet, rather than just within the header of the packet, which means you need an ALG(application-layer gateway).

Here's a cisco doc that discusses it, though strangely it's removed from cisco's website:

http://voip-itec.tamu.edu/files/reference/voip-nat.pdf

 

[albertmorail]

Thank you very much