I am trying to use port forwarding on my Home ADSL modem which is connected to Linksys Wireless Router WRTSL54GS (basically acting as a Switch/Access Point). My objective is to reach a desktop PC connected to it as follow :
The wireless router is just working as an access point and has the DHCP turned off. The CAT5 wire coming out of the DSL modem is connected to the LAN side of the Linksys (not WAN Internet Port).DSL Modem-->Wireless Router-->Desktop (Wired 100Mbps)
I have 2 DSL modems and have tried various settings (both have pros and cons) resultantly I have a couple of queries for which I would appreciate if someone can answer.
1.HUAWEI SmartAX 880
Its the default modem given to me with the DSL connection by my service provider. I have tried configuring port forwarding over it (by following various guides on the internet) in the "Virtual Server" option, but all in vain. Nothing seems to work. I can only reach the WAN (Internet) address of my DSL modem and cannot go beyond it to a specific Desktop PC on port 3389 (basically i am trying to control my home PC with windows remote desktop or VNC).
The firmware on it is pretty old Ver 1.xxx (2004) . I have tried searching over the internet but cannot find any new firmware file for it (maybe its a discontinued product).
If someone has used this modem with a latest firmware, then can you please tell that whetehr the latest firmware has the option to update the dynamic WAN address on DynamicDNS.org. Its called the "DDNS" function usually. I need it cause I obtain a dynamic IP for the DSL everytime it disconnects/reconnects, so I have registered a domain name to reach my modem which is to be updated everytime.
I would appreciate if someone can post a latest firmware link for this modem. Also would like any help from someone who has tried port forwarding in a similar setup.
2. Aztech DSL600EU (with USB)
This is another DSL modem lying with me. I have successfully configured and connected it to my DSL line as well.
However it has the same problem of having an old firmware. I have tried searching everywhere on the internet, even ftp.aztech.com is down where the latest firmwares were hosted. I would appreciate if someone can post a latest firmware link for this modem. Also would like any help from someone who has tried port forwarding in a similar setup.
What are the instructions if I try updating the RouterTech firmware on this unit. I have tried to telnet the modem to know what is the bootloader, but the default user name "Admin" and password "Admin" just doesnt work.
It has the DDNS functionality which work fine and it automatically updates the web address/domain name.
However it has another problem. I cannot find any option in the web configuration interface to allow the VPN Tunnel traffic to pass through. As a result I can never connect to my office VPN from home. I have used internal DHCP of the DSL Modem(s) to assign automatic DHCP address to all my home devices.
Reason being that I connect to my office VPN via secure VPN client secured by PKI infrastructure SmartCard login. I want to know that where is this option buried in the web-interface of Aztech DSL600EU Firmware version 100.2.5. I can find it in the "IP Filters" section and have tried configuring it but it never works. I am not sure it is applied for the LAN client connected to the modem or not.
The same function has an easy option in the Huawei/Linksys Modems & Routers for Allow IPSec / L2TP / PPTP traffic pass through. This would be applied for any incoming LAN client. I believe i cannot assign it on the basis of LAN Client IP since LAN client can have dynamic IP.
Thank you for reading. Infact I have this problem that I cannot use both of the modems since one or more features are missing on any of them.
Would appreciate if you can guide me in detail , as i personally would like to use Aztech DSL600EU only if it easily lets me use the VPN connectivity. The port forwarding is something which is desirable and not essentially needed, would be great if it works too.
Regards,
Myself.