[carawain]

Hello,

Good Evening.

I need some help to configure iptables rules due to misunderstandings when I read some wiki or tutorial.

I have flashed my Netgear R7000 router with an ExpressVPN firmware.
This firmware is very flange and I'm not able to use the expressvpn web interface to configure port forwarding, there're no feature for that.
The only way is to use iptables rules connecting to the router by SSH.

I tried many rules to forward FTP ports 21 & 20 to my NAS but without success.

My router has a WAN ip on interface ppp0
and my NAS has a private ip like 192.168.1.10 (192.168.1.0/24)

What are the rules I need to configure to get the connection success from the outside?

The LAN IP address of the NAS which I use is not routed to the VPN tunnel.

Thanks in advance for your help.

[egc]

What version of DDWRT are you using?

[carawain]

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DD-WRT v3.0
http://www.dd-wrt.com

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BusyBox v1.30.1 (2019-04-25 03:15:07 UTC) built-in shell (ash)

[carawain]

Hello,

I finaly found the issue.
My iptables rules are working on the R7000 router
The issue was on my VDSL Netgear modem in bridge mode which is not really "Open" some incoming packet are filtered with no option to configure it as open.
The only way is to switch from bridge mode to "modem-router"
And in WAN configuration select the nat option as "Open" and not the "Secured" one.

VDSL Modem is a Netgear DM200

Thanks for your previous reply