kfkehua
Hi all, this is a generic network question, I don't know where to post this, hopefully someone can help.
Situation: We have an OpenVPN server in our office, runs on UDP 1194, and works fine.
A client of ours need to connect to us. They have a strict network policy and have "all their outgoing ports blocked except for 80 and 443, and some other common ports".
We need to ask their network admin to open up the required port, but I just want to make sure.
I am a bit confused when thinking about this scenario:
When the client server initiates the connection it uses a random port, for example 192.168.1.123:66666
However, when the connection comes out from the WAN router (their firewall), it in turns gets translated to another random port, for ex 22.25.26.123:34567
Now, what port do I ask their network admin to allow for their outbound? 1194, the port initiated by the client server (66666) or the port initiated by their WAN firewall (34567)?
Hope my question makes sense...
Thank you.
