Can't figure out - Wired networking / PPPoE

fleetwooddan

Reputable
Jul 16, 2014
2
0
4,510
I've recently moved to China and in my new flat, I have a wireless modem/router to connect to the broadband. I have disabled the wireless on this. Connected to it via a LAN port (into its own WAN port) is a Time Capsule, which handles the PPPoE login and keeps me online and connected 24/7. However, this means I cannot put the Time Capsule in bridge mode and I'm not sure if this is what creates my following problem:

My modem/router is in my bedroom, next to my computer, which I want to connect by wire to the Time Capsule and the rest of the network (there are hundreds of Wifi networks around here, I'd much rather have a wired network where possible). The Time Capsule is the other side of the lounge outside, connected by a 10m (roughly) ethernet cable, around the outside of the room. Buying another and routing it back around the outside of the room and to my computer is too much work. When I connect the computer into the modem/router, I cannot see the Time Capsule. Any ideas how I can get them to talk to each other?
 
Solution
No, you can not put a router behind the modem because the modem is what converts the dsl or fiber into ethernet, a router is ethernet in/ethernet out.

The modem/router should allow you to authenticate the PPPoE, i have never seen a router that did not have this feature, and have certianly not seen a modem/router that does not.

What is the model number of this "time capsule" and what is the model number of your modem/router? You should just be able to access the modem via the web gui page. Take a laptop, dissconnect from wireless, then plug it into modem via ethernet cord, go to a command prompt and type ipconfig to find the gateway address and that should be the address to access the modem/routers internal webpage (may have to...
What device is this Time Capsule? I am familiar with that.
Why cant you authenticate PPPoE at the modem/router?
What is the purpose of the Time Capsule?

You said it had wan and lan ports, that makes me assume it has dhcp and nat firewall.
By pluging the computer into the modem/router and not the Time Capsule it is not on the same subnet address and is in front of the nat firewall on the Time Capsule device and thus preventing you from accessing it the way you want.
 

fleetwooddan

Reputable
Jul 16, 2014
2
0
4,510


There seems to be no option for doing it on the modem/router. Before I set my time capsule up, I had to authenticate PPPoE on my laptop whenever we wanted to get online. The Time Capsule certainly makes it easier in that respect, and allows me to back up my computer without thought.

I'm guessing there'll be no way through the nat firewall then?
Is the only option to get a wired router (that can handle PPPoE authentication), put that right behind the modem, and connect the Time Capsule and my computer to lan ports on that router? (Would that work?)
 
No, you can not put a router behind the modem because the modem is what converts the dsl or fiber into ethernet, a router is ethernet in/ethernet out.

The modem/router should allow you to authenticate the PPPoE, i have never seen a router that did not have this feature, and have certianly not seen a modem/router that does not.

What is the model number of this "time capsule" and what is the model number of your modem/router? You should just be able to access the modem via the web gui page. Take a laptop, dissconnect from wireless, then plug it into modem via ethernet cord, go to a command prompt and type ipconfig to find the gateway address and that should be the address to access the modem/routers internal webpage (may have to lookup model number and default login, try admin:admin and admin:password first)
 
Solution