here is the network topology
Code:
Internet
|
|
-----------------
| hub |
-----------------
| |
-------------- ------------
| Gateway1 | | Gateway2 |
-------------- ------------
| |
-------------- ----------------
| webserver | | other clients|
-------------- ----------------
webserver: IP:10.100.128.1
other clients: IP:10.100.128.0/22
Gateway1: Internal IP: 10.100.128.254, External IP: 210.0.202.23 (by ISP)
Gateway2: Internal IP: 10.100.129.254, External IP: 210.0.202.33 (by ISP)
Gateway1: NAT + port-forwarding (http, https) by TP-LINK
Gateway2: NAT ONLY by OpenBSD
Our Problem: once the Gateway1 is replaced by OpenBSD
external clients CAN reach the webserver by port-forwading
internal clients CANNOT (tried both 10.100.128.1 and 210.0.202.23)
From the builder of the webserver, it can only accept the requests from 210.0.202.23 through port-forwarding
Our Task: combine 2 gateways into 1 by OpenBSD
AND all clients (internal and external) can reach the webserver by 210.0.202.23
thanks, pls. help