dsl/router help

[troytime]

i just got dsl (been on cable for years)

I'm not a networking guru, but i'm not a *complete* dumbass either

I can get the dsl to work fine when the modem is hooked up to my computer.
I don't have any software installed, and no isp related settings configured on my pc.

I can't get my router to work as a 'middle man' though.

I had the modem going into the wan port on the router.
the router is a linksys wrtg54 vpn/firewall.

I have the router set to 'obtain IP automatically' - and it appears to do so successfully (according to the status tab, it has a wan ip that matches what the IP is when the modem is hooked straight to the PC). However, when my pc is plugged into the router, i cannot get DNS at all. It connects to the router just fine, but in the routers status tab the dns servers are showing 192.168 IPs (which i know are internal)

Tech support told me that the router had to be configured for PPPoe, but when i configure it that way it can't even connect.

I'm fairly confident that it needs to be configured to obtain IP automatically - but i don't know what i'm doing wrong.

 

[troytime]

also, when i run ipconfig i get something that looks far different than what i am used to

Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::802f:cec5:543b:7ffd%8
IPv4 Address. . . . . . . . . . . : 75.21.100.XXX
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 75.21.100.1XX

Tunnel adapter Local Area Connection* 6:
Connection-specific DNS Suffix . :
IPv6 Address. . . . . . . . . . . : 2001:0:4137:9e50:38d5:7f2:b4ea:9b54
Link-local IPv6 Address . . . . . : fe80::38d5:7f2:b4ea:9b54%9
Default Gateway . . . . . . . . . :

Tunnel adapter Local Area Connection* 7:
Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::200:5efe:75.21.100.171%12
Default Gateway . . . . . . . . . :

Tunnel adapter Local Area Connection* 9:
Connection-specific DNS Suffix . :
Temporary IPv6 Address. . . . . . : 2002:4b15:64ab::4b15:64ab
Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301

 

[RebateMonger]

Brand/model of your DSL modem?

What was your setup when you ran that reported "ipconfig"? You should be showing a private IP address on your PC, not a public address. The public address would only be showing up if you were directly hooked to a DSL modem that doesn't have a built-in router.

 

[JackMDS]

If the DSL is PPPOE based it would not work unless you configure correctly the PPPOE.

PPPOE is Based on typing into the Router User name and password.

 

[drebo]

Quite a few DSL modems now-adays will perform PPPoE for you and act as a basic NAT router. I know that mine did out of the box. Thus, when I plugged my router into it (was configured for DHCP on the WAN side as I was using it for cable internet), the router obtained a private IP address as its WAN side (192.168.1.0/24) and changed its internal IP scheme to 10.0.0.0/24. I was being double-NATed.

In the literature that came with your modem, there should be some information about how to log into it (you need to be directly connected) and change it to "Bridge Mode". This will allow your router to perform the PPPoE, which is usually the desired setup for DSL.

 

[JackMDS]

If it is a Modem/Router how do you explain the External IP that is assigbed to he computer?

75.21.100.XXX

In any case if the Modem is a Modem/Router combo it should e configured this way,

http://www.ezlan.net/router_AP.html

 

[troytime]

that ipconfig in the 2nd post is PC hooked right into the modem

the modem is a speedstream 5100 - i had already logged into it and set up the PPPoE to get it to connect

i don't have any manual for the modem, but i can log into it.
i will see if i can find a setting for "bridge mode" - but i've heard from a few other people that say the PPPoE is better off on the modem because the linksys router doesn't have enough processing power to do it

 

[JackMDS]

As far as I know the speedstream 5100 is a modem only. I.e it is already a Bridge and I doubt that it has inside support for PPPOE.

Originally posted by: troytime i've heard from a few other people that say the PPPoE is better off on the modem because the linksys router doesn't have enough processing power to do it

I am afraid that this rumor is real Fairy Tale.

 

[troytime]

Originally posted by: JackMDS
As far as I know the speedstream 5100 is a modem only. I.e it is already a Bridge and I doubt that it has inside support for PPPOE.

Originally posted by: troytime i've heard from a few other people that say the PPPoE is better off on the modem because the linksys router doesn't have enough processing power to do it

I am afraid that this rumor is real Fairy Tale.

i'm very new to this PPPoe thing...
but i put in my ATT Dsl username/password in the modems admin interface, which allows me to connect to the internet

is that PPPoE?

 

[JackMDS]

Yeah, the PPPOE works with username/password.

http://en.wikipedia.org/wiki/P...Protocol_over_Ethernet

 

[troytime]

k. i found the setting on the modem to control whether the PPP was on the modem or on the computer

i set it to computer, saved, hooked up the router, put username/password settings in the router and BAM - worked

i'd still like to have the PPP stuff on the modem instead...but at this point i no longer care enough to take action.

now to get my wireless router working as an access point

thanks everyone for your help