Releasing an IP address from a DSL modem

Hello all,
I have a Mac G5 and a Dell with one dsl internet connection. I'm too cheap for a router or hub, I'd like to be able to unplug the modem from the mac and plug it into the PC when i want to get online on that.
I know I need to release the IP address from the MAC. How do I do it??
Any help is appreciated.
Justin

I am not sure where you got your information, but it doesn't work like that.
Your modem does this function, by assigning IP address from the server of your ISP.
A Router distributes multible IP addresses for multible computers. But if your are using an ethernet cable and plugging in and unplugging from one to another it is a non issue.
Don

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Upgrading from Westell DSL modem to ActionTec

Hello all,
I have a situation where I'd like to migrate from an older Westell modem (A90 series) over to a newer ActionTec modem.
The problem I have is this: I don't remember the IP address of the ActionTec modem. I'm under the impression that I need the MAC of the older modem in order to have Verizon DSL vadilate my login (where I live, Verizon DSL uses DHCP instead of PPPoE).
What do I need to do in order to migrate from the older DSL modem to the newer modem?
Should I contact Verizon support to have them change my MAC authentication using the new ActionTec modem?
Or... am I missing something here?
Thanks much.
rich

Ok.
#1 Check your IP Address, Subnet Mask, Default Gateway, and DNS Servers on your computer.
This means for example, if on Windows XP...
a) Go to Start -> Run.
b) Type in cmd and press enter.
c) In the new window, called the command prompt, type in ipconfig /all and press enter.
#2 Go to a site that displays the public IP.
Such as http://whatismyip.com/
#3 Check to see if any of the IP Addresses on your computer is the same as the one on a site that displays the public IP.
#4 Only if an IP Address are the same as, then the MAC Address that you need to use is the MAC of your computer.
Clue/Hint: The MAC Address on a Windows computer, is dislayed at ipconfig /all and is called the physical address.
#5 If you are sure that none of the IP Addresses on your computer is the same as the one on a site that displays the public IP, then with your web browser go to the default gateway and log-in to the Westell as need be.
#6 If you have no idea of what the user name and password to your Westell modem is, then go find the manual for it...
#7 Also if you are sure that none of the IP Addresses on your computer is the same as the one on a site that displays the public IP, what is the exact model of that Westell modem?
^^
If you are the original poster (OP) and your issue is solved, please remember to click the "Solution?" button so that others can more easily find it. If anyone has been helpful to you, please show your appreciation by clicking the "Kudos" button.

Can't Get Legit IP Address From My Cable Modem

I have narrowed down my problem.
I cannot coax a legit IP address from my Charter cable modem. I'm using AirPort Admin Utility to no avail.
Everything else in the system works perfectly...I have no problem networking between computers, or tapping into a different wireless system.
The problem is getting an IP address that works. I have tried, one at a time, an AirPort Express, AirPort Snow and, finally, an AirPort Graphite. None could get the real IP happening.
Of course, Charter claims "software problem". Maybe it is, but I certainly don't trust them!

hi! Have you Physically powered off the Cable Modem and powered it back on? Connect your Cable Modem's network cable to the WAN port of your Airport. Unplug the power to both the Cable Modem and the Airport Base Station.
Plug the Power Chord into the Cable modem first, then the Power Chord to the Airport Base Station.
See if that helps,
AL

Why am I getting 2 IP addresses from the cable modem?

I recently renewed my IP address for my cable modem (by booting into Windows and doing the ipconfig thing). It did this successfully and assigned me a new static IP.
However back in OS X I am now getting two IP addresses depending on whether I connect by ethernet or Airport. When I connect my MacBook straight to the cable modem by ethernet it gives me the new IP address. However when I connect the Airport Extreme Base Station to the cable modem and do all the relevant restarting, it insists I still have the old IP address. This can't be right. Is it an errant preference hanging about in the Base Station? I have tried restoring it to default and setting up from scratch but it persists.
I know the difference between public and distributed addresses... the two I'm talking about are the public kind (e.g. 82.114.223.43 etc)

What do you mean by "old" and "new" IP addresses? What TYPE of IP addresses are you talking about? Specific numbers for example?
In general, the typical cable modem set up should work as follows: your ISP will assign an IP address to your cable modem. This IP address can be permanently fixed (static) or occasionally change (dynamic) - whether you get a static or dynamic IP address depends on your ISP. This IP address is considered your "public" IP address.
What you plug in directly after the cable modem will take on this IP address, since the cable modem merely passes on the IP address info (and serves no routing functions). So, if you plug in your MacBook directly to the modem, your MacBook will take on the IP address that your cable modem passes through, as assigned by your ISP; only your MacBook will have internet access.
On the other hand, if you plug in to the modem a router, such as Airport Extreme Base Station, the router will be assigned the "public" IP address received from the cable modem on its WAN (wide area network) side, i.e. the "side" that interfaces with the public Internet. When your router is set up to SHARE this one public IP address with multiple computers/clients, it has to create a private sub-network, otherwise known as the LAN (local area network). Whether you plug computers in via ethernet to the router, or connect wirelessly to the router (or even both!), your router will create IP addresses for each of its LAN clients so that it can identify everyone. As long as the client has a different hardware MAC address, the router will assign it an unique IP address. (That's why you had 2 IP addresses for your MacBook - one for the ethernet connection, and the other for the Airport connection - each network interface having a different MAC address, and thus receiving a different IP address from the router.)
Your router will always maintain its WAN IP address, as long as your ISP gives you that IP address (via your cable modem). However your MacBook, Windows and other clients may be assigned different LAN IP addresses depending on how you configured your router's DHCP server settings. The LAN clients in the context of your subnet would NOT be assigned the router's public WAN IP address when the router is set up to share that connection.
If you understand the whole WAN v. LAN IP addressing thing, but you're not getting the results you expect, try powering off EVERY single piece of equipment on your network. Wait several minutes so that everything is cleared from the equipments' memory. Then power on and wait until the equipment is in ready state, in this sequence: 1-cable modem..., 2-main router (AEBS)..., 3-remote bases/bridges (if any)..., 4-computers and other client devices.

Can't connect to internet..self assigned ip address problem with DSL Modem

I've run into this before, without resolution, and now again on a friend's iMac. Time to ask around...
Basically, everything appears to be assigned and configured perfectly, but the network status always shows, "...you have a self assigned IP address and may not be able to connect to the internet". Sure can't connect to the net when it says that.
I've gone thru the procedure advise before that details the sequence of events needed to insure the modem resets and recognizes the Mac and it's incoming DSL (sbcglobal) signal. The order of network priority is set properly by dragging built in ethernet to the top of the list. Modem was powered down, plugged in, and then connected to the Mac, but no solution. Any ideas? thanks

This continues to be a mystery. I've had my powerbook on several networks, and connection has, most of the time, been an automatic process. Additionally, I've installed new systems for people with the same isp, and all has been well. So easy is the process, it's never been an issue. However, following explicit procedural instructions (including powering the Mac down), has proven unsuccessful on 2 different occasions.
There is little help with the isp support in India, which is where the call routes too.
The only thing I have not done is to swap out the cable at one of the locations, but the other location, which has the same issue, works fine on the iMac there. Only when I connect my Powerbook to the modem, does the "...self assigned ip address...not be able to connect to the internet" appear.
I just keep thinking there has got to be a small detail that is being overlooked.

Replacement DSL Modem 6100G not working

I was having trouble with my 6 year old Westell modem and having to reset it at first once every 6 months and lately once to twice a week sometimes daily. I called Verizon Tech support and after an hour on the phone and several line tests it was determined that I needed a new modem. While on the phone I was passed to several different people trying to resolve the problem. All I accomplished was I was getting a new modem, I was put on new equipment in the C.O., and I upgraded my speed. I was told that I would be receiving my new modem in two to three days. After a week and a half I still had not received my modem. I again called Tech support, gave them the ticket number and tried to find out where my modem was. The tech who answered my call tested the line again after several times of me telling her that all I needed was to find out where my modem was and it was already determined to the cause of my problem. She told me there was no way for her to track my modem. She then transferred me to someone else who I then stopped and told him the situation and he informed me that the delivery company told them the modem was undeliverable due to an address error. Another modem was shipped and I received it in two days. When the new modem arrived it said to "Connect the modem Immediately" on a sticker on the modem. I connected it and DSL LED was on solid and Data LED was flashing and the Internet LED failed to light and then turned red. I called tech support and was on hold for about an hour even though the automated message stated that I had a trouble ticket and it would get me to someone who could resolve my problem. I finally got in touch with a Tech and he assured me that my problem was simple and it would take no time to correct the problem. After another hour I was told that I was in an "Outage" but my old modem was allowing me to connect to the internet by some "Miracle". He told me to not use the new modem but to continue to use the old modem and go out to the Internet and try to find updates for it on the Internet. I had another trouble ticket opened because I had static on the line as well. While I was looking online for an answer elsewhere I ran across this AWESOME site www.dslreports.com. It was the answer to all my problems! I found that all I needed to do was to have the "Tech" release the Mac address from my old modem or just disconnect it for four hours before connecting the new one. I did the four hour method and I am online again! After all of that I have wasted 8 hours of my life I will never get back thanks to Verizon's "Tech Support"!

Sorry for the problems that you had with the service. If you ever do need help we are are here to help. Remember we are here online to assist you 24x7 through various different social mediums. You can get help here on the Verizon Forums at http://forums.verizon.com , on Twitter at @VerizonSupport , or on Facebook http://www.facebook.com/VerizonFiOS .
Anthony_VZ
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Outlook certificate errors from certificate on DSL modem.

Hi,
I have a client running Office 365 Small Business on a mix of Outlook 2007 and 2010 installs. We are getting certificate errors when using Outlook, and upon further investigation, I've found that the certificate it is seeing is from the DSL modem, showing
Issued To: gateway.pace.com. I'm not working with a domain, I've double-checked everything in the DNS settings in-house and for the domain name. Also, the domain name is not in any way pointed to or set on the modem.
Any help will be greatly appreciated!
Thanks,
Eric

Hi,
Is that different server an Exchange server? In the local Outlook 2013, please run Test E-mail AutoConfiguration tool to check if any services are using that namespace for service request. To run the tool, please do:
please open Outlook - press CTRL key - right click on the Outlook icon from right bottom corner taskbar - Test Email AutoConfiguration. Put your email address - uncheck use guessmart and secure guessmart authentication - click Test to check your Autodiscover
service.
Then check the Results tab and Log tab for service namespace.
In IE, please check the following settings for LAN:
Click Settings > Internet Options > Connections > LAN settings, please make sure there is no proxy server set there. Only “Automatically detect settings” option is checked.
Regards,
Winnie Liang
TechNet Community Support

Release email address from old apple id

long time ago - before family accounts - I created an appleid for my daughter so she could use facetime on her ipod - and used her email address as the appleid. Now in the process to set up a "family" account for her so she now has a icloud.com account. What I'm unable to figure out is how I can release her email address from the previous appleid so I can add it to the new Family account appleid. It keeps on complaining about already being associated with anothe apple id.
Any ideas on how to break through that??
thnx
Dennis

Right, once an email address is associated wth a particular Apple ID, it is forever tied t that Apple ID.
Not sure why you don't just set up an iCloud account on her existing ID and then invited her to join Family Sharing?
GB

Newbie-2 Mac Laptops, One AE, One Verizon DSL modem, VPN-Set Up?

I have read through the discussions here before I posted, but since I am new to Airport Express (AE) I may have missed the obvious.
Our household has two Mac laptops. I just purchased AE and am trying to figure out how to hook it up with my Verizon DSL modem.
Can I just use an ethernet cable from the DSL modem to AE? Or do I need some kind of switch?
Will two laptops (with Airport cards) be able to connect to the internet at the same time using AE?
One laptop has a VPN for work. Will there be issues with AE and that set up?
Sorry for the dumb questions.

My question is how do I keep my Power PC connected to the DSL modem and set up the AE? There is only one ethernet port out. Do I need a hub?
No. Since the AirPort Express has only a single Ethernet port it can not connect to a broadband connection AND support a wired (Ethernet) client. Using a hub or switch between the broadband modem and AirPort Express will put the AirPort Express's DHCP server in direct conflict with your ISP's DHCP server. Your ISP won't like that.
Your options are:
Replace the AirPort Express with an AirPort Extreme base station (AEBS), or an inexpensive 802.11b/g compliant base station. In addition to the WAN port, the AEBS provides one LAN port (an inexpensive base station will provide 4 or more) for connection to wired (Ethernet) clients.
Place a wired router between the broadband modem and the AirPort Express. Configure the AirPort Express so that the option to distribute IP addresses is DISABLED.

Cannot access DSL modem in bridge mode w/ Airport Extreme

Hi
I have the following setup:
DSL Modem: Used in bridge mode + NAT/DHCP/Firewall turned off. Static IP is set to 192.168.2.1
Airport Extreme: In PPPOE mode with Shared IP (which is selected by default): Distributes IP range 192.168.1.X with subnet 255.255.255.0. At this point, Airport Extreme's IP address is what it gets from the ISP, basically DSL Modem is passing thru' this to the AE.
Ethernet cable is running from DSL modem to AE's WAN.
In this mode, everything works fine and me and all others can use Internet fine...
But the problem is that I can't ping/ access DSL modem at all in this mode. Basically, I need to login to the DSL modem to monitor my DSL connection quality (SNR, Attenuation, etc.) but whatever I tried I could not figure out how.
Basically, I tried setting a static IP on the DSL modem as 192.168.1.3, this did not work. I read somewhere that it needs to be on a different subnet, so tried using 192.168.2.1, that did not work either.
If I connect the DSL modem to a machine directly and set that machine's IP to 192.168.2.10, it can connect to the DSL modem, but there is no way I could access this DSL modem from the setup I explained above.
I am simply out of solutions at this point and any idea would be appreciated.
Thanks a ton!

What you are asking about is generally possible but probably not with an Airport Extreme. As others have noted you SHOULD be able to access a DSL modem in bridge mode via it's "lan" IP address if you directly attach a cable to it and configure your computer with appropriate static IP settings (I'm assuming that in bridge mode the DSL modem has it's DHCP server disabled).
This approach can also be achieve through a router with sufficiently flexible configuration options (e.g. openwrt open-source firmware). Basically the router attaches its WAN port to the modem like usual. Then the router is configured to do PPPOE via the WAN port while SIMULTANEOUSLY assigning the WAN port a static IP address that can connect to the modem's LAN address. Finally the router firewall must be configured to pass traffic from the DSL modem LAN IP back to the network.
So your intuition suggesting that this should be possible is absolutely right. However; you can probably also see from the steps required why most modems simply (incorrectly) document that it isn't possible.
Here's a link with some gory details on achieving this with an openwrt-based router: https://forum.openwrt.org/viewtopic.php?id=10952

Problems with connecting AirPort Extreme with SBC DSL Modem

We bought the AirPort Express specifically because we were told it was a snap to setup with Windows and DSL. I cannot get it set up. Have Windows Vista, AT&T DSL and a 5100 Speed Stream DSL modem. After a couple of failed attempts, I called AT&T support for help and was told to make a change to the settings on the DSL modem. Still didn't help. When I gave up on the AP Ex and tried connecting the DSL cable directly to the computer, I couldn't get connected to the internet at all so spent another hour on the phone with AT&T support to get things working. Second support person told me that the suggestion I was given was wrong but it is on the 5100 Speed Stream support page so I'm not sure. Thanks for any suggestions.

Thank you so much for your help. I tried those settings but the connection didn't work. However, it is working by leaving some of the default settings. See the underlined settings below.
That leaves me with other questions:
1) But what are the conquences of those settings?
2) How do I determine if I have a secure network? (other than the computer, don't have any other wireless devices to check though we are planning to purchase one in the future). When I check on the windows network
center, everything is "off" except password protected sharing. I was hoping to see a security-enabled network identification for this new network somewhere.
2b) I set up wireless security WPA/WPA2 Personal but not a guest network (yet).
3) A problem (amber light) was discovered because:
Allow Setup over WAN was checked. For now, I ignored the warning for now but think I need to change it.
4) under the AirPort Utility/Summary page, what should the IP address be? It is completely different than the IP address for the DSL modem.
5) The reason I didn't set up a guest network yet was when I originally tried to set it when when "Connection Sharing" was set to Off (Bridge Mode) - as suggested - I received a warning that Guest network requires that this AP Express needs to be set to share a public IP address uding NAT/DHCP.
Sorry for the very basic questions. This obviously is my first attempt at setting up a wireless router.
And thanks for any help.
To set up the AXn as a "bridge," using the AirPort Utility, either connect to the AXn's wireless network or temporarily connect your computer directly (using an Ethernet cable) to the Ethernet port of the AXn, and then, try these settings:
AirPort Utility > Select the AXn > Manual Setup > AirPort > Wireless tab
Wireless Mode: Create a wireless network
Network Name: <enter the desired Network Name or SSID>
Radio Mode: 802.11n (802.11b/g compatible) Set to automatic instead (and finding 80211a)
Channel: Automatic
Internet > Internet Connection
Connect Using: Ethernet
Configure IPv4: Using DHCP
Ethernet WAN Port: Automatic (Default)
Connection Sharing: Off (Bridge Mode) Set to share a public address

I use to administrate my DSL modem via an ip-address. When I enter it into FF8 I am asked where to save the file. Why and how can I prevent FF8 from doing that?

I use to administrate my DSL modem via an ip-address. When I enter it into FF8 I am asked where to save the file. Why and how can I prevent FF8 from doing that?
And now anytime I am entering an ip-address I am asked if I want to download the file.

It happens when the modem server doesn't send the file as text/html, but with another MIME type.<br />
I tried the index.html addition in case the server might send that file as text/html.<br />
If your DSL modem has a support website then you can try to ask there for advice about how to configure the modem server.

HT4262 What do I have to do to my Apple Extreme to switch it from a DSL broadband modem to a cable modem?

What do I have to do to my Apple Extreme to switch it from a DSL broadband modem to a cable modem?

Did you do the factory reset of the AE?? That is necessary. The AE keeps too many values from the last setup to easily move to a new configuration.
The quick method of factory reset.
Please look at Time Capsule (TC) as the same thing as the Extreme.
Power down the TC.
Hold in reset. and keep holding it in. Be Gentle! It is a tiny surface mount switch with a plastic lever.. Attempting to push it out the other side of the TC will not make the switch turn on better.
(I fix TC and have several reset levers bent over and jammed or broken off).
Power on the TC.. remember with the reset held in.. this needs three arms.. a friend or power switch you can get to with your feet..
Keep holding in reset for about 10sec until the front LED flashes rapidly.
Release reset and wait .. the boot will be slow as it deletes previous setting.. only from router side and pulls out the factory defaults. No files are deleted on the hard disk.. but the name of the TC may change.
The power cycle of the cable modem is very important.. it has to be off completely for 20min and sometimes longer.. overnight. Some battery backup version modems do not go off without removing the battery.. even unscrew the coax cable.
Make sure when you power up the modem only the AE is plugged in. Make sure the AE is set to router mode.. DHCP + NAT.. and is plugged in WAN port to the LAN port of the modem.
If you keep having trouble post again..
We need to know the model of the AE and firmware it is running.
Also what version utility on what OS you are setting it up from.

Cisco E1000 wont connect to internet anymore - not getting DHCP ip address from Comcast modem

Very strange issue...
I have Comcast HSI and have been using my Cisco (Linksys) E1000 for about 3 years now. Bought it as a refurb.
My issue is that the E1000 is NOT receiving the DHCP info from my Comast modem.
The internet works when my laptop is directly attached to the modem; but when connecting the modem internet port
to the E1000 internet port it is NOT grabbing my ISP DHCP ip address thus no clients can broswe 'wired or wireless'.
I even updated the firmware and am starting to think its time to get a 'BRAND NEW' router as this makes NO SENSE!
I cannot release/renew as i have NO ip address to release. I have even tried to configure the E1000 as a static
using the ipconfig/all from when the laptop and modem was connected. Comcast says they see nothing on their end.
I also factory defaulted the router and redid the config to no avail.
Any help would be appreciated.
Solved!
Go to Solution.

You need to enable MAC address clone on the router to recognize the connection from your cable modem. The link below would tell you how to configure the router to work with a cable connection and how to do MAC address clone.
Setting up a Linksys router with Cable Internet service

DSL Modem will not give me an IP address

I keep getting the amber flashing light when I am connected to my DSL modem. Airport Utility says that I am not getting a Valid IP address from my modem. My Linksys wireless router works fine, I even tried connected my Linksys travel router to my DSL modem and it worked fine. I can't see any obvious ip conflics either. I have read almost every post in this forum and tried everthing with no luck.
I have figured out a work around, if I plug my AE(n) into one of my ethernet ports on my Linksys router it immediatly gets a valid ip and the light turns green and I am conneced to the internet.
I really don't want to be running both routers and wireless networks and would rather plug the AE(n) directly into my DSL modem.
I would be grateful for any ideas.
MBP C2D 2.33 17" Mac OS X (10.4.8) 3gb ram, 160gb HD

I have the same problem, but don't have the benefit of a router workaround.
Two separate flavors of the problem...
1. I have tried manually setting the IP address, and adding subnet/router addresses as well as DNS server addresses. Copied them all from my original AE to the new one. Interestingly the new AE status light will turn green when IP address is configured manually, but can't get to the internet despite the color of the light. When I try to launch Safari or Firefox, it just times out, never getting to the homepage.
2. Went back and configured with DHCP (as I have on the old AE for over a year.) When it restarts, the new AE just sits and stares at me with its blinking amber light. Tried again and ran level 7 debug logging and there's no indication of what went wrong. Just that frustrating blinking amber light and the error message that my base station has an incorrect IP address.
In either case, I can unplug the new AE, reconnect the old and I'm immediately back in business.
Have tried the above after shutting down, unplugging, starting from scratch with every possible permutation I could think of. Still no dice.
Ideas/help??
imac Mac OS X (10.4.8)
imac Mac OS X (10.4.8)

Releasing an IP address from a DSL modem

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