Can't connect to device behind router

[tamitos 0]

Currently, I use AirVpn on my dd wrt R7000. All of my devices are connecting to this router : PC, NAS , Mobiles. The problem comes when I use PC and try to connect to my NAS via XXXX.synology.me:XXXX. It does not response anything. If I use 192.168.1.6, I can connect to my NAS.

 

However, when I use eddie client with different server than the one on my dd wrt, I can connect to my NAS thru XXX.synology.me:XXXX. What is the problem?

 

Below is what I config in firewall (get from AirVPN forum)

 

iptables -I FORWARD -i br0 -o tun1 -j ACCEPT
iptables -I FORWARD -i tun1 -o br0 -j ACCEPT
iptables -I INPUT -i tun1 -j REJECT
iptables -t nat -A POSTROUTING -o tun1 -j MASQUERADE

iptables -I FORWARD -i tun1 -p tcp -d 192.168.1.2 --dport 5000 -j ACCEPT
iptables -t nat -I PREROUTING -i tun1 -p tcp --dport 5000 -j DNAT --to-destination 192.168.1.2

 

ps. I already forward port in client area (airvpn). I did not forward any port on dd wrt GUI.

[go558a83nk 364]

you'll have to forward ports on your router (not from WAN to LAN, but from TUN to LAN) so you probably can't use the web GUI.  Search this forum for port forwarding IP tables for dd-wrt and tomato.  There's an official thread that Air staff made for this.

[tamitos 0]

@ go558a83nk

 

These two lines below. I found from this forum where I need to change local ip address and port. If I recall Air Staff posted how to do it, if I am correct.

 

iptables -I FORWARD -i tun1 -p tcp -d 192.168.1.2 --dport 5000 -j ACCEPT
iptables -t nat -I PREROUTING -i tun1 -p tcp --dport 5000 -j DNAT --to-destination 192.168.1.2

 

Do I need addition rule to forward TUN to LAN?

 

Thank you

[go558a83nk 364]

https://airvpn.org/topic/9270-how-to-forward-ports-in-dd-wrt-tomato-with-iptables/?hl=%2Biptables+%2Btomato

 

that's the topic.  you just may have to change TUN1 to TUN11 or whatever TUN device is being used.  And of course change the port and IP addresses to suit.

[tamitos 0]

root@XXX:~# ip route
default via 169.234.228.129 dev vlan2
10.30.0.0/16 dev tun1  proto kernel  scope link  src 10.30.0.178
127.0.0.0/8 dev lo  scope link
XXX.XXX.XXX.XXX/25 dev vlan2  proto kernel  scope link  src XXX.XXX.XXX.XXX
XXX.XXX.XXX.XXX/16 dev br0  proto kernel  scope link  src XXX.XXX.XXX.XXX
192.168.1.0/24 dev br0  proto kernel  scope link  src 192.168.1.1

 

VPN uses tun1 so I believe I set it correctly. My NAS is at 192.168.1.6 which need port 5000 to connect to.

 

Any suggestion?

 

[go558a83nk 364]

root@XXX:~# ip route

default via 169.234.228.129 dev vlan2

10.30.0.0/16 dev tun1  proto kernel  scope link  src 10.30.0.178

127.0.0.0/8 dev lo  scope link

XXX.XXX.XXX.XXX/25 dev vlan2  proto kernel  scope link  src XXX.XXX.XXX.XXX

XXX.XXX.XXX.XXX/16 dev br0  proto kernel  scope link  src XXX.XXX.XXX.XXX

192.168.1.0/24 dev br0  proto kernel  scope link  src 192.168.1.1

 

VPN uses tun1 so I believe I set it correctly. My NAS is at 192.168.1.6 which need port 5000 to connect to.

 

Any suggestion?

 

 

 

suggestion for what?  it seems you have all the info you need.