Outbound ports

Support
1

Hi guys,

I’ve been running some tests regarding my NAT traffic (again) from home nodes.

I have a server with internal IP 192.168.2.30
On this server I have 5 nodes running on port 60000, 60001, 60002, 60003 and 60004.
I have a static outbound NAT rule in my OPNsense for these port ranges
Yet, I’m seeing outgoing traffic from this server from other ports (44307, 48880, 54789, 56583) (destination port for this traffic is :123)

The times traffic goes out from different ports is fairly low compared to traffic from ports assigned to my node. I was under the impression that nodes assigned a certain port would not communicate over other ports. Was this a wrong assumption or is something else wrong?

Help would be appriciated. Home nodes are driving me absolutely mental at the moment.

3 Likes
2

I believe I’ve observed similar behavior when experimenting with firewall rules.

2 Likes
3

that’s traffic for time services (outbound request for current time).

that should be not often and coming from your time service. if the requests scale up with nodes that would indicate a potential problem

4 Likes