USG Flex 700 Port Forwarding

Nico_L

Hello,

I have a Zyxel USG 700 and desperately trying to get Port Forwarding to my Server or with other words: Trying to Access my Server from WAN (e.g Domain/IP).

I think my ZyWall is allowing incoming traffic to the server ip but not letting anything out.

Has anyone a Plan to get it working, it don’t know how to fix the Problem.

My Network setup:

GE01 = Starlink (Failover)

GE12 = Fiber (Main Internet) (Don't Ask why GE12, I will be changing it in a few Days)

GE14 = LAN Outgoing to Switch/Gateway

WJS

Your Secure Policy is incorrect.

Correct rule be like:

Source zone : WAN , Source: Any

Dst znoe : LAN , Dst: Synology IP

PeterUK

Unplug GE1 and test again

WJS

Ahh, Sorry, I should note you have rule1.

I think you need to design a for "DNS-Net" zone.

Rule1: from"DNS-Net" zone not any

Nico_L

Thanks for your comments.

I Got it working, almost. Its Working 3-4 Hours and then without changing any Setting it just stop forwarding the Ports.

I have to manually go into the USG Nat Settings, change the Internal IP from the Working Gateway/Device to a IP Address that isn't connected, wait about a minute, change it back and then, the port forwarding just works again. I don't understand why..

Can anyone help with this Problem?

GE01 got disconnected and will be offline for 1-2 Months

PeterUK

try the rule as 1:1 NAT

Nico_L

https://community.zyxel.com/en/discussion/comment/64863#Comment_64863

Okay, I´m trying.

Nico_L

https://community.zyxel.com/en/discussion/comment/64863#Comment_64863

so I’m back. It worked definitely longer, a little bit over a day. But now, same problem happend again and got fixed by changing the destination IP to a non existing client and back to the normal IP.

PeterUK

what if policy control rule for destination is any?

I have setup a port test on my FLEX200 not the same model as you I see if I run into any problems

Nico_L

https://community.zyxel.com/en/discussion/comment/64904#Comment_64904

I changed it to any. See if it helps, thank you in advance.

That would be great, thank you. Functions should be the same, i think

Nico_L

Problem still exist. I dont know why, but its annoying me VERY much..