TD-W8968 doesn't work with another subnet

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TD-W8968 doesn't work with another subnet

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
TD-W8968 doesn't work with another subnet
TD-W8968 doesn't work with another subnet
2015-03-11 21:00:26
Region : Russia

Model : TD-W8968

Hardware Version : V3

Firmware Version : 1.0.5 Build 140821 Rel.52209

ISP : Centertelecom


Hello!
Help me, please, to get Internet in other subnet.
Modem has IP-address 192.168.1.1/24, and it works well in an own subnet (I have ADSL-connection).
Also there is a router with IPs: 192.168.1.254, 192.168.101.254.
The task consists in providing Internet access for 192.168.101.0/24 subnet.
I established a static route, and I can ping anyone from 192.168.101.0/24 network.
But the modem doesn't permit Internet access to noone of a network 192.168.101.0/24.
I didn't find suitable settings neither in the web interface, nor in a telnet.
Thanks.
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#1
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Re:TD-W8968 doesn't work with another subnet
2015-03-12 17:13:48
So W8968 is working as a router?
Follow the guide as below to check your settings.
http://www.tp-link.com/en/article/?faqid=560
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#2
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Re:TD-W8968 doesn't work with another subnet
2015-03-12 18:49:41
This is my network:


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#3
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Re:TD-W8968 doesn't work with another subnet
2015-03-14 13:36:47
Hi
In your network The 192.168.1.0/24 is the main LAN .if for example your Linux device is 192.168.1.10 then this IP is like a public IP for your second LAN , it means 192.168.100.0/24 is another NAT .
so as its a Nat . your LAN#2 devices can ping each other and LAN#1 devices . but LAN#1 can not see LAN#2 devices because they are behind the NAT Firewall. you should check your settings and config your Linux router . also you can authenticate your clients by IP redirection
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Re:TD-W8968 doesn't work with another subnet
2015-03-14 19:37:48

navid wrote

In your network The 192.168.1.0/24 is the main LAN .if for example your Linux device is 192.168.1.10 then this IP is like a public IP for your second LAN , it means 192.168.100.0/24 is another NAT .

No, as I said, Linux PC is not another NAT, it's a router, because I can ping from any 192.168.101.0/24 computer to any 192.168.1.0/24. Also I can ping from TP-Link Telnet to, for example, 192.168.101.1, but the modem doesn't permit Internet access to noone of a network 192.168.101.0/24.
But thank you for your try. Probably, TP-Link tech support can't help me. This is a modem model bug, and I have to return it to seller.
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#5
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Re:TD-W8968 doesn't work with another subnet
2015-03-14 20:28:22

DmitriyD wrote

No, as I said, Linux PC is not another NAT, it's a router, because I can ping from any 192.168.101.0/24 computer to any 192.168.1.0/24. Also I can ping from TP-Link Telnet to, for example, 192.168.101.1, but the modem doesn't permit Internet access to noone of a network 192.168.101.0/24.
But thank you for your try. Probably, TP-Link tech support can't help me. This is a modem model bug, and I have to return it to seller.



you can ping both of the subnets because the linux pc is connected directly to both networks

if the dhcp server is on another router and the linux pc is just a client then you should search for routing tools in linux to forward traffic between to NICs , maybe iptable can do it .and then add the ip route commands in your routers. also you should set the gateway "Linux pc IP" on your lan#2 clients to access the internet
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