How long to leave modem unplugged to get a new IP address?

[Psynaut]

I'm not sure what forum to put this in, but this is probably close. My internet has been out all day and the Tech guy at Cox said that it was a block of IP addresses that were down. I asked him if I unplug my modem for a while, could it acquire a new IP address outside of the affected block, and he said maybe.

My question is, how long do I have to leave my modem unplugged before it will reset and acquire a new IP address when plugging it back in? I have read a range from 10-seconds to 15-minutes to all night. I am guessing the answer is about 15-minutes, but I would like some expert advice so that I am not wasting my time. Thanks.

 

[Bradtechonline]

release it until someone else gets it from their DHCP... Do not think there is some kind of time grace period unless exclusion/reservation is made via MAC address to a Cable Modem/DSL Modem/ or NIC..

I'd just release it, unplug it, and then go to work come home and see what you got.

 

[Psynaut]

I see. Thanks for the quick response.

 

[ScottMac]

A modem wouldn't take the address (a router would).

If, in fact, you have a router connected, try changing the MAC by putting in a "spoofing" value. It is a common config item for most current SOHO routers. If you have no other numbers to plug in, put in the MAC address of your PC (you can get it with an IPCONFIG /all, it'll be listed as the "physical address" ... the dashes are just digit separators ... just enter the digits in the same sequence into the MAC spoofing fields of your router. .

DHCP addresses are generally assigned by MAC ... change the MAC and you'll usually get a different address.

Good Luck

 

[JackMDS]

There is NO rules in this issue.

It is totally depending on the ISP policy, and even then they can change the rules every other day.

It does not matter what I do, my RR IP stays the same for 3 weeks.

In contrast my Verizon IP changes every time I switch Off of the Modem, even if it is for 10 sec.

 

[Psynaut]

Lots of good info here. I disconnected my router because I was having issues with it, and haven't purchased a new one yet. If unplugging the modem doesn't work, I guess I will just have to wait it out. Thanks.

 

[Psynaut]

Well, I got it working with he help of a different tech guy at Cox. I have an IP-35 pro with two Ethernet ports, and all I had to do was switch ports. Apparently each Ethernet port has its own IP address... who knew?... all you networking experts probably did, but its total news to me.

Just as an FYI, the other thing he was going to have me do was create a bridge between 1394 and the Ethernet in my Networking settings, which would give me a new IP address as long as the bridge was in place. This effectively accomplishes the same thing that ScottMac described above, only without a router. I guess all you have to do is open the Networks settings, then highlight the 1394 connection and the LAN connection, then right click and click on Build a Bridge from the menu. This is I guess an effective way to get a new IP address quickly if you ever find yourself banned and can't use a proxy.

 

[ChAoTiCpInOy]

Doesn't it also matter if you ahve a static or a dynamic IP?

 

[JackMDS]

Originally posted by: ChAoTiCpInOy
Doesn't it also matter if you ahve a static or a dynamic IP?

If you have a Static IP as imply in the name it never changes.

It is assigned by the ISP and stays like this forever (as long as you pay) unless you specifically ask the ISP to assign you a New one.

 

[mxnerd]

Originally posted by: Psynaut
Just as an FYI, the other thing he was going to have me do was create a bridge between 1394 and the Ethernet in my Networking settings, which would give me a new IP address as long as the bridge was in place. This effectively accomplishes the same thing that ScottMac described above, only without a router. I guess all you have to do is open the Networks settings, then highlight the 1394 connection and the LAN connection, then right click and click on Build a Bridge from the menu. This is I guess an effective way to get a new IP address quickly if you ever find yourself banned and can't use a proxy.

1394 is firewire, it has nothing to do with your networking. It's for your peripherals like storage or digital camera / scanner. I don't think create a bridge between 1394 and NIC get you anything.

 

[JackMDS]

Psynaut I do not think that you understand how it works.

Every thing that you do on the Internet goes through your ISP server using the IP that is assinged by their system to the connection.

Manipulating the IP scheme on your computer is Not going to change their server.

In addition it seems that you are not using a Router. I.e. the computer's IP is external. Beside being unsafe, a lot of Network related functions would not work because they need a local Network with Local IPs.

 

[Nothinman]

1394 is firewire, it has nothing to do with your networking. It's for your peripherals like storage or digital camera / scanner. I don't think create a bridge between 1394 and NIC get you anything.

Actually you can do networking over firewire, although I think MS removed support for it in Vista. So creating that bridge would let you daisy-chain another PC onto the network via firewire but it wouldn't have anything to do with the IP that you received from your ISP.

 

[mxnerd]

Originally posted by: Nothinman

1394 is firewire, it has nothing to do with your networking. It's for your peripherals like storage or digital camera / scanner. I don't think create a bridge between 1394 and NIC get you anything.

Actually you can do networking over firewire, although I think MS removed support for it in Vista. So creating that bridge would let you daisy-chain another PC onto the network via firewire but it wouldn't have anything to do with the IP that you received from your ISP.

I know years back there were very few vendors created firewire network cards, but since almost no one used them, I think the market for firewire network just vanished.

 

[Nothinman]

There's no such thing as a firewire network card, any firewire card can do networking.

 

[JackMDS]

From a point of view of Networking Firefire is like USB.

No cards, No Hubs, No nothing .

You can connect two computers that have Firewire and use the Network Firewire Connection to exchange Files.

 

[Nothinman]

You can connect two computers that have Firewire and use the Network Firewire Connection to exchange Files.

You can do a lot more than that since firewire lets you daisy-chain devices you could have a whole ring network and it's just another transport for TCP/IP so any IP protocol will work and if you made one of the nodes a router you could share it's Internet connection.

 

[mxnerd]

You were right. I think I remembered it wrong. There is no firewire network card, but a firewire/ethernet combo card.

Here is a link about networking PC & MAC using firewire.

http://lifehacker.com/software...er-firewire-173973.php

 

[kevnich2]

Originally posted by: JackMDS
There is NO rules in this issue.

It is totally depending on the ISP policy, and even then they can change the rules every other day.

It does not matter what I do, my RR IP stays the same for 3 weeks.

In contrast my Verizon IP changes every time I switch Off of the Modem, even if it is for 10 sec.

Do you use a Dual WAN router for your setup Jack or how do you utilize your 2 internet connections?

 

[JackMDS]

Originally posted by: kevnich2

Do you use a Dual WAN router for your setup Jack or how do you utilize your 2 internet connections?

Right Now it is two independent connections, each goes to its own network, the Networks are bridged for local traffic and independent for the Internet (done for security reasons).

I do not have Dual WAN Router at the moment, it used to work as DualWAN with this, http://www.hawkingtech.com/pro...19&FamID=13&ProdID=185

Hawking does not make it any more.

On an Entry Level Linksys makes this (I never used it)

http://www.linksys.com/servlet...ommon%2FVisitorWrapper

 

[Red Squirrel]

Changing the mac is easiest way.

Or ask your isp to plug you into another dslam as the uplink will most likely be on another range. But they'll probably look at you funny.