NAT with Fiber modem config page via different LAN client

[Xerxes]

Hello,

Here is my network config. Note I’ve masked the IPs with x’s, but they are correct and the network is working - I just can’t access the Fiber modem’s config page from my Balance One private subnet 10.0.0.1/24. Specifically, my computer’s static private address of 10.0.0.121.

WAN1: Static Public IP configured with Additional IP addresses. I am using a /28 that comes with 13 useable public IP addresses.
Static IP
Subnet: /28

LAN:
10.0.0.1/24

Static DHCP reservations set via MAC address

Advanced → Outbound Policy
AT&T Fiber Modem - Enforced AT&T Fiber WAN1. Source IP Network 10.0.0.1/24. Destination: 192.168.1.254. Protocol/Port: Any

Connection times out to Fiber modem. If I turn on my WiFi adapter on my desktop and pull a connection on the Fiber modem’s WiFi, I can access the config.

I have the following NAT Mappings set up, so that my outgoing requests are on their own static public IP address.

I’ve tried various other configs, such as setting up a Port Forwarding rule to forward all TCP ports from the AT&T Fiber modem’s default WAN IP, as well as my computer’s static WAN IP, to forward to 192.168.1.254. With no luck.

Any ideas?

[MartinLangmaid]

Your Modem is on 192.168.1.254 and your WAN is on 23.x.x.x so there is no IP interface that can can talk to the modem.

Open your WAN and click the blue arrow next to the IP Address label:

Then put a management IP address in there in the same subnet as the modem eg 192.168.1.253

Save and Apply and you’ll be able to reach 192.168.1.254

[Xerxes]

@MartinLangmaid

192.168.1.253

I tried that and it still times out. Is the 192.168.1.253 made up?

[MartinLangmaid]

yes its made up. I am assuming your router which you said is 192.168.1.254 is a /24. so .253 should work as a source IP.

[Xerxes]

It is /24, is the Peplink pretending to be .253 when someone tries to get to it? Sorry, I’m not familiar with management IPs. I was thinking I had to put my LAN IP there.