Router WAN to LAN question

akmaggot666

Member
Apr 14, 2013
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Hello!

I have a crappy Speedport w724v type ci router/modem from T-Com and I want to use my Asus RT-AC51U (which is a router only) to be the main router that handles the connection, services, QoS

I should connect wan-lan? I read somewhere that lan-lan first router handles everything, I think
and for wan-lan it didn't say

how exactly would I connect it?

thanks, feel free to correct me
 

JackMDS

Elite Member
Super Moderator
Oct 25, 1999
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In order to use the Asus Aouter as the main Router you have to disable the Router part of a Modem/Router and configure it to be used as a Modem Bridge.

AFAIK the Speedport w724v can not be configured as a Bridge.

If so you have to buy a New Modem only unit that is compatible with T-Com service.


:cool:
 

akmaggot666

Member
Apr 14, 2013
125
2
81
In order to use the Asus Aouter as the main Router you have to disable the Router part of a Modem/Router and configure it to be used as a Modem Bridge.

AFAIK the Speedport w724v can not be configured as a Bridge.

If so you have to buy a New Modem only unit that is compatible with T-Com service.


:cool:
it can not?

can you lead me to source of that?

because I called them to make it on and called back to make it off cuz I failed to setup

also there's this thing in settings

external modem :checkbox
The LAN1/link socket offers two options for connecting devices:
  • Function off: You can connect network-capable devices (e.g., computers) with a network cable (factory setting).
  • Function on: you can connect an external modem, e.g., an optical fiber modem (ONT). The internal DSL modem is deactivated. An Internet connection is not possible over the DSL socket.


is that even..., maybe that's not what I need and that's what they were turning on/off?
 
Feb 25, 2011
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it can not?

can you lead me to source of that?

because I called them to make it on and called back to make it off cuz I failed to setup

also there's this thing in settings

external modem :checkbox
The LAN1/link socket offers two options for connecting devices:
  • Function off: You can connect network-capable devices (e.g., computers) with a network cable (factory setting).
  • Function on: you can connect an external modem, e.g., an optical fiber modem (ONT). The internal DSL modem is deactivated. An Internet connection is not possible over the DSL socket.


is that even..., maybe that's not what I need and that's what they were turning on/off?
That's not what you need - it's actually the opposite. At least what you're quoting here, it makes it sound like the device can either operate as a modem/router (function off), or router-only (function on).

You need it to be modem-only.

I skimmed through the manual here:

http://setuprouter.com/router/telekom/speedport-w-724v/manual-2211.pdf

My german is rusty, but I didn't see anything that would indicate the device has an ability to work in modem-only mode. (Sorry.)
 

akmaggot666

Member
Apr 14, 2013
125
2
81
That's not what you need - it's actually the opposite. At least what you're quoting here, it makes it sound like the device can either operate as a modem/router (function off), or router-only (function on).

You need it to be modem-only.

I skimmed through the manual here:

http://setuprouter.com/router/telekom/speedport-w-724v/manual-2211.pdf

My german is rusty, but I didn't see anything that would indicate the device has an ability to work in modem-only mode. (Sorry.)

that's actually what I was thinking, that they were just turning on that 1 mode that I didn't need, I am kinda confused, do they actually give away redacted hardware and then call it "gonna turn bridge mode on for u" which is redacted up?

Profanity is not allowed
in the tech forums.

AT Mod Usandthem
 
Last edited by a moderator:

JackMDS

Elite Member
Super Moderator
Oct 25, 1999
29,528
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Last time I used this stuff (DSL) is many years ago.

If memory serve me well originally the Speed force was released with a modem only Mode available and at a certain point later this capacity was disabled.


:cool:
 
Feb 25, 2011
16,983
1,616
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that's actually what I was thinking, that they were just turning on that 1 mode that I didn't need, I am kinda confused, do they actually give away redacted hardware and then call it "gonna turn bridge mode on for u" which is redacted up?

Profanity is not allowed
in the tech forums.

AT Mod Usandthem

It's pretty common for low-end hardware to have, shall we say, artificially limited feature sets. Not redacted up, just... you know. Miserly.
 

mv2devnull

Golden Member
Apr 13, 2010
1,519
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Functions:
* Modem: converts between DSL phone signal and Ethernet signal. (There have been also analog phone, ISDN phone, and TV-cable modems.)
* AP/WiFi/WLAN: wireless Access Point converts between wired and wireless Ethernet signal.
* Switch: just passes on Ethernet traffic from one port to (an)other port(s). Switch is a bridge.
* Router: acts as gateway between separate Ethernet subnets (aka broadcast domains)
* NAT: network address translation, aka masquerade (and port forwarding). Hides true addresses. On router.
* DHCP: dynamic host configuration. On router.

It seems that the Speedport has DSL-modem, router, AP, and a 4-port switch. The router probably does NAT and DHCP.
The AP and switch are the "home LAN" and the router provides addresses for all clients with DHCP.
One connects either the modem or the "WAN-port" to ISP.
The router is between the ISP and the home LAN. It hides members of home LAN from the ISP with the NAT.

The Asus has router, AP, and a 4-port switch. The router does NAT and DHCP.
The AP and switch are the "home LAN" and the router provides addresses for all clients with DHCP.
One connects the WAN-port to ISP.
The router is between the ISP and the home LAN. It hides members of home LAN from the ISP with the NAT.


Case A:
* ISP uses DSL and Speedport is connected to it. Lets call "home LAN" of Speedport "LAN-S".
* Asus WAN-port is connected to switch port on Speedport. Asus "home LAN" is "LAN-A".
* For Asus the LAN-S is the "ISP". Speedport is the ISP.
* Asus does NAT and Speedport does again NAT. Your clients connecting to Asus are behind "double NAT".
* Other clients of Speedport cannot see clients of Asus.
* You might disable AP on Speedport.
* Asus can do QoS, etc for its clients.

Case B:
* ISP uses DSL and Speedport is connected to it. Lets call "home LAN" of Speedport "LAN-S".
* Asus switch port is connected to switch port on Speedport. Asus "home LAN" is "LAN-S".
* Asus has no "ISP". DHCP on Asus must be disabled.
* VPN on Asus won't function. Asus does not route.
* Speedport DHCP serves all clients.
* Only Speedport does NAT.
* Asus serves only as a switch and as a AP.

Case C:
* Speedport magically disables its router. Modem is directly connected to switch (and AP).
* There is no separate "LAN-S", ISP's DHCP serves all connected devices.
* Asus WAN-port is connected to switch port on Speedport.
* Asus is the router that faces the ISP.
* Asus can do QoS, etc for its clients.
 

akmaggot666

Member
Apr 14, 2013
125
2
81
Functions:
* Modem: converts between DSL phone signal and Ethernet signal. (There have been also analog phone, ISDN phone, and TV-cable modems.)
* AP/WiFi/WLAN: wireless Access Point converts between wired and wireless Ethernet signal.
* Switch: just passes on Ethernet traffic from one port to (an)other port(s). Switch is a bridge.
* Router: acts as gateway between separate Ethernet subnets (aka broadcast domains)
* NAT: network address translation, aka masquerade (and port forwarding). Hides true addresses. On router.
* DHCP: dynamic host configuration. On router.

It seems that the Speedport has DSL-modem, router, AP, and a 4-port switch. The router probably does NAT and DHCP.
The AP and switch are the "home LAN" and the router provides addresses for all clients with DHCP.
One connects either the modem or the "WAN-port" to ISP.
The router is between the ISP and the home LAN. It hides members of home LAN from the ISP with the NAT.

The Asus has router, AP, and a 4-port switch. The router does NAT and DHCP.
The AP and switch are the "home LAN" and the router provides addresses for all clients with DHCP.
One connects the WAN-port to ISP.
The router is between the ISP and the home LAN. It hides members of home LAN from the ISP with the NAT.


Case A:
* ISP uses DSL and Speedport is connected to it. Lets call "home LAN" of Speedport "LAN-S".
* Asus WAN-port is connected to switch port on Speedport. Asus "home LAN" is "LAN-A".
* For Asus the LAN-S is the "ISP". Speedport is the ISP.
* Asus does NAT and Speedport does again NAT. Your clients connecting to Asus are behind "double NAT".
* Other clients of Speedport cannot see clients of Asus.
* You might disable AP on Speedport.
* Asus can do QoS, etc for its clients.

Case B:
* ISP uses DSL and Speedport is connected to it. Lets call "home LAN" of Speedport "LAN-S".
* Asus switch port is connected to switch port on Speedport. Asus "home LAN" is "LAN-S".
* Asus has no "ISP". DHCP on Asus must be disabled.
* VPN on Asus won't function. Asus does not route.
* Speedport DHCP serves all clients.
* Only Speedport does NAT.
* Asus serves only as a switch and as a AP.

Case C:
* Speedport magically disables its router. Modem is directly connected to switch (and AP).
* There is no separate "LAN-S", ISP's DHCP serves all connected devices.
* Asus WAN-port is connected to switch port on Speedport.
* Asus is the router that faces the ISP.
* Asus can do QoS, etc for its clients.
I thino case 2 was the first try but it didnt work. On asus .2.1 is ok right? While sp .1.1