Question about Arris SURFboard SB5120 Modem

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Bridge mode I'm installing a security cameras dvr, so I need to setup a sb512 motorola cable modem in bridge mode to my linksys router then I will be able to open the ports and forward the ip as well. The dvr manufacture provide a ddns host service, so I dont need a static ip. Some one can help me out this issue?

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1 Answer

How do I find the bridge mode in sb6121


The Motorola Surfboard SB6121 is a cable modem only - no router included.

You must have a router - after the modem - in the network if you need router duties.

There is no bridge mode in the modem. Bridging the modem basically bypasses the routing function of the device and passes everything on to the next device in line......the router in this case.

Since this modem does not have a router built in - it is always in bridge mode.

Feb 03, 2015 | Arris Sb6121 Docsis 3.0 Cable Modem...

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I have a motorola 2210 modem and want to switch to a Netgear N150 wireless modem router dgn1000. I unplugged the Motorola modem and connected the Netgear but it does not work? I typed in 192.168.0.1 to...


Yes you need to setup the modem to bridge mode.
below is a guide you can follow on how to setup the motorola to bridge mode.

http://www.dslreports.com/faq/15855

Feb 27, 2011 | Computers & Internet

2 Answers

BRIDGING MODEM AND ROUTER


Your firmware may not support bridge mode, try installing dd-wrt from http://dd-wrt.com/dd-wrtv3/index.php

Aug 19, 2009 | Linksys Wireless-G WRT54G Router

2 Answers

I have a Linksys WRT54G router. The power went out the other day and I haven't been able to establish a connection since. I can connect when I run cable from the modem to the cpu, but not if I try using...


what is the model of your modem? if you said that you are able to get online when your computer is hooked up to the modem only, then it indicatest that your modem is not yet in bridge mode. Putting it in bridge mode will make your modem a "pass through" device thereby causing no conflicts in asking for ip add/connecting to your ISP. when your modem is in bridge mode, you should not be able to get online.
after setting your modem to bridge mode, connect your linksys router. if you have a pppoe connection, or one that uses username and password, have that set up in your linksys router. at this point, your router will be the one to ask ip adds from your ISP. 
you could also visit this site, http://www-ph.linksys.com/servlet/Satellite?c=L_CASupport_C1&childpagename=PH/Layout&cid=1166859677881&pagename=Linksys/Common/VisitorWrapper&lid=7788193882H13, for further configuration of your router. as for your modem, try to call your ISP on how to set your modem to bridge. 

May 05, 2009 | Linksys Wireless-G WRT54G Router

2 Answers

Connectin a linksys Befsr41 wired router to a Motorola 2210 modem


do one thing change the ip address of the LAN in the 192.168.2.1 in the router then you get it after that configuration you done right ok

Apr 14, 2009 | Linksys EtherFast Cable/DSL Router

2 Answers

Ps3 key change timeout using westell 6100 modem on verizon


there might be a problem with the Linksys router, the Westell 6100 should be 1st set to bridge mode in order for your router to be connected to it. or there could also be a proble on the Verizon server.

Apr 10, 2009 | Westell Wirespeed LiteLine 6110 Modem

1 Answer

Reseting "Bridge mode" in RCA DCM 305R cabel modem


you can't set teh modem to bridge mode, however, you can set the router to bridge.
The linksys should have bridge mode configuration in the uer guide.

connected the 2 router together
configure the IP address of the liksys to be inthe same subnet as the moem, but out of the range of the DHCP of the modem. ie. DHCP address 192.168.0.2 through 192.169.0.100, the linksys should have the IP address as 192.168.0.200
disable the DHCP on the linksys
setup the wirless just the way you would if ti was the modem.
connect from the modem LAN port to the LAN port on thelinksys. leave the WAN port open.

Dec 30, 2008 | RCA Thomson Digital Cable Modem (DCM305R)

1 Answer

Installed WRT54G2 With ATT Motorola DSL and cannect to internet. dsl worked fine before installing the Modem had AT&T recheck the dsl and was configeration correct was advised that my problem in...


hi there ...

your isp is at&t? please verify the ip address straight to the modem if its is 192.168.1.1 and if your modem from your isp is set to DHCP or BRIDGE mode.

IF IP address is 192.168.1.1 (DHCP)
... change the LAN IP address of the router to 192.168.2.1 or 5.1 to prevent any IP conflict
by doing this :

1. access setup page of router usually 192.168.1.1
2. under setup tab look for the ip address, change it, then save
3. click on the status tab , and look for a VALID ip address

IF MODEM is set to BRIDGE mode
.... please ask username and password from your ISP coz we would need to set your router to PPOE...
1. access setup page
2. under setup tab look for INTERNET CONNECTION TYPE
3. select PPPoE
fill in username and password
select "keep"alive
save
4. click on status tab
look for LOG in TYPe ===> click CONNECT
if connected : check a valid IP address
if authentication failed verify again your username and password from your ISP

Goodluck!


Aug 07, 2008 | Linksys WRT54GX2 Wireless-G Broadband...

2 Answers

Linksys Wireless WRT54G vs. WET54G


For what it is worth, I fhave found streaming video does not function well using a wireless connection. The options of multipale routers will work as long as you configure them as to not have conflicting IP address assignment's via DHCP, and the routers do not have matching IP address's. Never fear all is possible with paticence. BPCS

Jan 20, 2008 | Linksys Wireless-G WRT54G Router

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