mikepd
Discovery
Premium,MVM
join:2000-10-26
New Port Richey, FL
clubs:
 ·Verizon FIOS
 ·Verizon Online DSL
 ·RoadRunner Cable
| reply to babaganoosh
Re: Westel and Linksys router both use the same IP?!
You really do not want to do double NAT which will can cause problems. The easiest thing to do is to put the modem in bridge mode (turn off DHCP, DNS services and you need to change the setting 'routed bridge' to 'bridge' mode).
Let the linksys router handle the PPPoE chores and the modem just hook to the WAN port of the linksys as a 'dumb bridge'.
After you make the changes to the modem, you will lose connection with it, so if you ever want to go back to the defaults just use the reset button with a paper clip which will reload the modem defaults.
HTH
Mike
--
Always Reach Beyond Your Grasp |
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babaganoosh
join:2001-12-27
Basking Ridge, NJ
| OK, so you can't get to the modem once it's bridged? It's really not 192.168.1.1 anymore and the router LAN IP isn't the same as the modem at that point?!
That makes loads of sense. THANKS! They were saying you can't get to the modem because it and the router have the same IP, which didn't make sense.... so the router wan will be a routable IP address that it gets from Verizon, not a 192 that the modem gave it?!
and double NAT - good point! thanks. I didn't think of it that way! |
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darcilicious
Cyber Librarian
Premium
join:2001-01-02
Forest Grove, OR
·Verizon FIOS
·Comcast
| Re: Westel and Linksys router both use the same IP
said by babaganoosh  :OK, so you can't get to the modem once it's bridged? It's really not 192.168.1.1 anymore and the router LAN IP isn't the same as the modem at that point?!
You can by connecting a computer to it directly and giving the computer an IP address in the same subnet (e.g. 192.168.1.5)
so the router wan will be a routable IP address that it gets from Verizon, not a 192 that the modem gave it?!
Yes  |
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dsldan
join:2001-11-06
Forest Hills, NY
1 edit | reply to babaganoosh
Re: Westel and Linksys router both use the same IP?!
You can't get to the modem because the router won't let you!
192.168.x.x addresses are by definition not routable. They must stay within the LAN. Therefore when the router gets packets addressed to 192.168.x.x, it will not pass them out the WAN port, which is where your modem is hooked up. That is why you can't get to the modem.
Put your modem in bridge mode, as previously mentioned. It will retain its fixed address, but it will be inaccessible, for the reason stated above. Therefore it doesn't make a difference if it has the same IP as the router.
I just make it a point to give the modem fixed 192.168.1.1 and the router 192.168.1.2, just in case I want to disconnect one or the other there's no confusion as to which one I'm addressing. |
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babaganoosh
join:2001-12-27
Basking Ridge, NJ
| i know they aren't routable on the web... but inside the house I think they are. you can go to 192.168.100.1 which is the motorola surfboard IP when you are on a cable interent connection and going through a router when you have a subnet of 192.168.1.0/24. |
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Euchre
@sprint-hsd.net
| Re: Westel and Linksys router both use the same IP
I spent the last night trying to make a router work with a westell 6100 modem, used the tutorial linked in another thread by paradisecowgirl, but that says NOTHING of the router settings and the assigned IP to the one box makes no sense to me either. I cloned the MAC addy of the modem on the router, and tried it with DHCP as normal and PPPoE and neither gets me a shared connection. With the modem set to Bridge on the VC 35 setting, and the DHCP LAN server off on the modem, I can get the router to get an external IP but it does not share or route the connection. Verizon's site has instructions for using PPPoE but the modem is apparently set up for DHCP. It would seem there is no complete tutorial anywhere to show all of how to make this work, and I sure fussed with it and can't.
Any care to offer a thorough step by step? I've contemplated emailing the owner of that page to suggest a more thorough walkthrough, and I'd be willing to contribute the writeup and maybe some screenshots. |
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Euchre
@sprint-hsd.net
| Oops, did fail to mention the router in question is a linksys BEFSR41 which I use on this Sprint connection without issue - however Sprint has an accurate guide on bridging my modem and the settings for the router (which is PPPoE in my case). |
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darcilicious
Cyber Librarian
Premium
join:2001-01-02
Forest Grove, OR
·Verizon FIOS
·Comcast
1 edit | reply to Euchre
Verizon assigns DHCP to some customers and PPPoE to others depending primarily on their location / former service provider (GTE vs BellAtlantic).
Without more information about where you are located no one here can help you determine if you're on PPPoE or DHCP.
The instructions at »members.verizon.net/~res08lyg/6100.htm are for setting up the 6100 in bridge mode in DHCP enviroments with additional steps noted regarding the issue of MAC filtering which don't apply to PPPoE connections.
Once the 6100 is in bridge mode and if you need PPPoE, then your best bet is to set up in the linksys router. Since I don't have PPPoE I'm not able to provide screen shots for that portion though from what I understand, it's pretty straightforward. ("Setup" tab at »192.168.1.1/ by default).
As far as not getting shared connections while the 6100 is in bridge mode, that sounds like a configuration issue with the linksys. |
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NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
·Pacific Bell - SBC
| reply to dsldan
said by dsldan :You can't get to the modem because the router won't let you! 192.168.x.x addresses are by definition not routable. They must stay within the LAN. Therefore when the router gets packets addressed to 192.168.x.x, it will not pass them out the WAN port... 08/29/05 22:28:03 Slow traceroute suzuka
Trace suzuka (192.168.0.1) ...
192.168.102.1 RTT: 0ms TTL: 64 (Chihiro ok)
192.168.0.1 RTT: 13ms TTL: 64 (Suzuka ok)
192.168.0.1 is a SpeedStream SS4100
They are connected by a CAT5e patch cord from the Ethernet port of the modem to the WAN port of the router. The traceroute was done from a computer one of the LAN ports of the router.
08/29/05 22:34:01 Slow traceroute yuzuyu
Trace yuzuyu (192.168.129.2) ...
192.168.102.2 RTT: 0ms TTL:150 (Rikako ok)
192.168.129.2 RTT: 165ms TTL:150 (Yuzuyu ok)
192.168.129.2 is the WAN port of a linksys BEFSR11
Now, about routing packets across the WAN ports of SOHO routers...
--
Norman
~A deam, dream, no dream
~Voices of the night go across the forest
~A dream, dream, no dream
~Good night my good child |
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