Access to modem in a different subnet

[stuoningur]

HI,

my OpenWrt has the IP 192.168.1.1 and my modem 192.168.2.1 and I would like to be able to access the Web Interface of the Modem from devices in the 192.168.1.0 subnet. I found this by googling around a bit, but it doesn't work:

Access PPPoE modem webinterface from OpenWRT

I have a PPPoE connection with vlan 40 on the WAN port connected to the modem.

Does anyone have any idea how to accomplish this?

[trendy]

There is documentation about this, which worked fine for my PPPoE (without VLAN) case.
What is your configuration?
uci export network

[stuoningur]

As far as I can see, the documation is basically matching the guide I linked in the opening post, just cli vs. LuCi.

The interface config:

config interface 'loopback'
        option ifname 'lo'
        option proto 'static'
        option ipaddr '127.0.0.1'
        option netmask '255.0.0.0'

config globals 'globals'
        option ula_prefix 'fd23:9d9b:6dae::/48'

config interface 'lan'
        option type 'bridge'
        option ifname 'eth0.1'
        option proto 'static'
        option ipaddr '192.168.1.1'
        option netmask '255.255.255.0'
        option ip6assign '60'

config device 'lan_eth0_1_dev'
        option name 'eth0.1'

config interface 'wan'
        option ifname 'eth0.40'
        option proto 'pppoe'
        option password 'secretpassword'
        option ipv6 'auto'
        option username 'supersecretusername'

config device 'wan_eth0_2_dev'
        option name 'eth0.2'

config interface 'wan6'
        option proto 'dhcpv6'
        option ifname 'eth0.40'

config switch
        option name 'switch0'
        option reset '1'
        option enable_vlan '1'

config switch_vlan
        option device 'switch0'
        option vlan '1'
        option ports '6t 3 2 1 0'
        option vid '1'

config switch_vlan
        option device 'switch0'
        option vlan '2'
        option vid '40'
        option ports '6t 4t'

config interface 'modem'
        option ifname 'eth0.40'
        option proto 'static'
        option ipaddr '192.168.2.2'
        option netmask '255.255.255.0'

[stuoningur]

I found the issue, the vlan tagging caused it. I created a seperate vlan without the tagging and it's working now!