IP adress problem?

Question

My router whic is connected to college's lan hub has an ip address of 172.16.37.15 but laptops connected to it has ip add in 192.168.0.. range. How should I make the ip in same range.

Router- TP- Link wr740n


Thanks indeed...

Answer 1

Sounds like your router is running as a NAT (Network Address Translation) server. This almost universal among the broadband routers you get from consumer electronics stores. You probably have the college cable plugged into the "WAN" port on the back of the router, and your laptops are on the "LAN" port.



This is not necessarily a bad thing. The college may have allocated you only one IP address - public internet companies do this all the time. That's why the routers always offer this service. However, the university is already serving you with a private IP address -- that means they have their own NAT server sitting between you and the internet. Consequently, they may not care how many IP addresses you use.



If that's the case, you need to log into your router (the documentation should say how; usually you connect to 192.168.0.1 or 192.168.0.1:8080 or 192.168.0.1:88, then use either your set password or the default one). You then turn off NAT. If that doesn't prompt the router to start forwarding all packets through the WAN port, you should then switch the college line from the "WAN" to a "LAN" port on the back - that will take all filtering out of it and your laptops will get their IP address from the campus network instead of your router. Just be sure to turn NAT _OFF_ before you do this, or your router will try to offer IP addresses to other people on the network, and you will piss off your campus IT people.

Answer 2

So what is the actual problem?



The router will be taking a single address on the college network, so it will appear as a single device on that network. Your devices running on the 192.168.0.0 sub-net will each have their own unique address. The router will translate the multiple addresses of the computers on your private network to the single address that the router has on the college network.



The college network may be designed with the intention of one address per room. If you try to defeat this by trying to get multiple 172.16.37.xxx addresses you may cause problems to the college. Stick with your devices on your 192.168.0.0 network.

Answer 3

OMG... Its much simpler than that &...



This is not a problem...



Your Computer is connected to a wired LAN...



Your Laptop is connected to an Access Point that is connected to that wired lan but running its own DHCP to connect users to the Wired LAN.



"Sounds like your router is running a NAT server"... ALL ROUTERS RUN A NAT SERVER.



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By default an Access Point will run its own DHCP as to not conflict with any other access points... and create their own zone. Its called a Bridge, and its completely normal.

Answer 4

Unplug the router and plug straight into the wall. Then you will be directly attached to the campus network. If you have multiple devices, get rid of the router and use an Ethernet switch instead (if that's allowed).