AR-502G-L-D-H cannot access webserver from outside

Hello

I have configured the AR-502G-L-D-H in a very basic way: I access it only through serial comms, I do not need any other interface.

It is just connecting to the 4g network, and attached to it there is a openWRT router with fixed IP (192.168.1.20).

Now, everything works, from the network I can surf the internet. However, in openWRT I allowed access to web configuration (through ports 80 and 443) from outside, in order to perform remote control.

In order to do that, as on the 4g network I do not have fixed IP, I have subscribed to a dynamic DNS service, so I know the IP from outside.

For some reason, I cannot get through, it seems that the AR 502 is blocking requests from outside to http and https webserver.

I do not think firewall is enabled.

Below there is my configuration.

So, how can I allow http and https to get through?

As far as I know, VLAN are not supported by this modem.

[V200R007C00SPC600]
#
 sysname Router
#
acl number 3002  
 rule 5 permit ip source 192.168.1.0 0.0.0.255 
#
aaa
 authentication-scheme default
 authorization-scheme default
 accounting-scheme default
 domain default
 domain default_admin
 local-user admin password irreversible-cipher (somepassword)
 local-user admin privilege level 15
 local-user admin service-type terminal
#
firewall zone Local
 priority 4
#
interface GigabitEthernet0/0/0
 ip address 192.168.1.1 255.255.255.0
#
interface Cellular0/0/0
 dialer enable-circular                   
 dialer-group 1
 apn-profile company_name
 dialer timer autodial 10
 dialer number *99# autodial
 nat outbound 3002 
 ip address negotiate
#
interface NULL0
#
dialer-rule
 dialer-rule 1 ip permit
#
apn profile company_name
 apn apn_name
#
 snmp-agent local-engineid 800007DB03707990F2FD3A
#
ip route-static 0.0.0.0 0.0.0.0 Cellular0/0/0
#
user-interface con 0
 authentication-mode aaa
user-interface tty 1 2
 shell
user-interface vty 0 4                    
#
return