I don't know what it's called, but need outbound connection to return

Ike
Ike Posts: 6
First Comment
in Security

Hello,

I use a program called Screen connect that allows me to remote access pc's for support.

I had to reset my zyxel becaue it got corrupted from an update, and i have set the port forwards correctly as they pass the test utility, but…

when i type in the url that's supposed to UNIVERSALLY work from inside OR outside, it fails now. I once was able to call zyxel support and the guy helped me over the phone in like 3 minutes, but i am hoping i can just get the help i need.

issue is universally browsable, but i am not sure what the 'it' name for it is…i can say with confidence, it's not "loopback" as the zyxel won't let me check that box.

again, to clarify… when i put in the URL inside the zyxel firewall, i am supposed to be able to still get to my server inside the network by it going out to the dns and coming back in. if that makes sense.

USG20-vpn with the new fandangled Flex 50 firmware.

Thank you for any help.

ike

Best Answers

  • PeterUK
    PeterUK Posts: 3,503  Guru Member
    100 Answers 2500 Comments Friend Collector Seventh Anniversary
    edited June 2023 Answer ✓

    Sounds like NAT loopback to me not sure why you can't check that box...unless you set external IP to any? you need to make address object for WAN interface and set it for external IP for the NAT rule

  • Ike
    Ike Posts: 6
    First Comment
    Answer ✓

    i was able to call Zyxel support and they fixed it with this NAT… it was loopback, but PeterUK was correct the external was set to any… see image..this solved everything.

    how screen connect works with zyxel.PNG

All Replies

  • Ike
    Ike Posts: 6
    First Comment

    Maybe clarity is needed:

    when i type my server FQDN url into my browser….it should show the web page on my server, but instaed it shows the login page of the USG20-vpn

  • Zyxel_Cooldia
    Zyxel_Cooldia Posts: 1,518  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Sales Associate 100 Answers 1000 Comments

    Hi @Ike ,

    Do you mean something like tringle route or NAT loopback?

    Can you send me your startup configuration in PM further checking.

  • PeterUK
    PeterUK Posts: 3,503  Guru Member
    100 Answers 2500 Comments Friend Collector Seventh Anniversary
    edited June 2023 Answer ✓

    Sounds like NAT loopback to me not sure why you can't check that box...unless you set external IP to any? you need to make address object for WAN interface and set it for external IP for the NAT rule

  • Ike
    Ike Posts: 6
    First Comment
    Answer ✓

    i was able to call Zyxel support and they fixed it with this NAT… it was loopback, but PeterUK was correct the external was set to any… see image..this solved everything.

    how screen connect works with zyxel.PNG

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