IP address of DSL modem in WAN port?

FiDo14DiDo

Senior member
Apr 7, 2000
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Need a bit of help here...I have a Speedstream DSL modem plugged into my Dlink 614+ wireless router. My modem is set with an ip address of 192.168.0.1 while my router is set with an address of 192.168.0.2. I am trying to access my modem while it is plugged into the WAN port of my router. I tried to access it by punching in its ip address but that didn't work. The two devices are located in another room so it makes it inconvenient to reset or configure the device.

I also tried using the WAN ip address provided by the router but that doesn't work either. Any ideas?:confused:
 

JackMDS

Elite Member
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Oct 25, 1999
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Modems usually do not have an IP, Unless it is a Modem/Router combo.

If it is a combo plug it first to a computer, disable the Router Part, and use it as a Modem

:sun:
 

tweekah

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Oct 23, 1999
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The Speedstream 5100b does have an IP address w/ subnet of 255.255.0.0. It hands out one DHCP lease w/ ip address of 192.168.1.64 unless you "let lan device share public ip". I would personally suggest what Jack said about "disable the Router Part, and use it as a Modem". You can do that by changing PPP location (under advance) in the GUI of modem and setting it to bridge mode.
 

jjoyner

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Sep 13, 2004
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Originally posted by: JackMDS
Modems usually do not have an IP, Unless it is a Modem/Router combo.

If it is a combo plug it first to a computer, disable the Router Part, and use it as a Modem

:sun:

DSL Modems DO have external and internal IPs (external is optionally programmable). Internal IPs. You gotta think about business customers and not residential. Businesses will more than likely want to pass the IP traffic through to a firewall (maybe sonicwall) which will use the external IP. Using NAT, you would setup the modem to pass traffic from 69.42.45.250 (external "my ip") to 69.42.45.251 internal to firewall and then the firewall would pass through from 69.42.45.251 to 192.168.0.1 and the router (in this case the dlink) would use NAT (network address translation) to mask your internal network. There ya go.


I work at an ISP that deals with Speedstreams all the time. They have a default IP of 192.168.0.1. They have that in case the customer needs to bridge the network or pass through VPN. Also, it helps to use that to program the modem.

You wont be able to get to it through the WAN port on the Dlink. You need to plug directly into the modem and type in the IP. If that doesn't work do this:

GO to a command prompt
Type in TELNET 192.168.0.1
Login and you will get command line interface...

Of course, speedstream sucks ass though...:(

Don't turn off the router feature on the Speadstream, it wont help. The built in switch/router on those are generally seperated ICs from the modem (PPPoE or PPPoA VCMUX or UBR???). Generally, if you had a comtrend 507 sitting next to a dlink 604 router, you would have what you have got.


Oh yeah...big flag here...MAKE SURE YOUR GATEWAY IS SET TO THE MODEM'S IP ADDRESS