- Changed my Router, my public Ip address is changed, why?
- Posted by santa19992000@yahoo.com on March 28th, 2005
I have Cable modem to Router to 3 computers at my home, from work I am
accessing my home machines using my public Ip address, I got new
Router, since then I couldn't able to access my machines at home,
looklike my WAN IP address is changed, what was the reason? why my IP
address is changed?.
Also I am looking for difference between 192.168.100.3/32 and
192.168.102.3/24?. thanks in advance.
- Posted by Calvin Henry-Cotnam on March 28th, 2005
santa19992000@yahoo.com (santa19992000@yahoo.com) said...
Unless you are paying your ISP for a static IP address, it could change
any time you log off and log back on again, which would have occurred
when you changed the router.
In practice, it is not unusual for the same piece of equipment to just
get the same IP address from a DHCP server, so even though most of us
are not signed up for a static address, we tend to get the same one all
the time. If the device that logs onto your ISP changes, as is the case
when you changed routers, the DHCP server at your ISP will likely assign
it a different IP address from the one it assigned to your last router.
When one needs to specify a number of continuous IP addresses, there
are three different ways to display it.
The first would be to just provide a list:
192.168.102.0
192.168.102.1
192.168.102.2
192.168.102.3
But this could get long if the list involves, say, 256 addresses, or
even more.
The exact same information can be expressed using one of two other
notations. The first is an address and a mask:
192.168.102.0
255.255.255.252
The second is an address, a slash, and the number of common (or
unchanging) bits in the address:
192.168.102.0/30
The address can be any address in the range.
In your case, 192.168.100.3/32 means that all 32 bits are common in
the range, so the range is just the single address 192.168.100.3
Using the other two notations, just the address by itself is the whole
list, or the address/mask would be:
192.168.100.3
255.255.255.255
For 192.168.102.3/24, the list would involve 256 addresses from
192.168.102.0 to 192.168.102.255 or the address/mask would be:
192.168.102.3
255.255.255.0
--
Calvin Henry-Cotnam
"Never ascribe to malice what can equally be explained by incompetence."
- Napoleon
-------------------------------------------------------------------------
NOTE: if replying by email, remove the capital letters!
- Posted by Gary A. Edelstein on March 28th, 2005
On 27 Mar 2005 17:07:38 -0800, santa19992000@yahoo.com wrote:
offer the option and you pay for them. Sometimes they offer business
type accounts with fixed IPs. Typically the IP they assign can remain
constant over time anyway and is based on the MAC address of the
network card the cable modem is connected to. In your case, the
router is the wan network card and has a MAC address that you changed.
Your choices probably are to just adjust to the new IP, which may
remain constant for a long time as before, or try to clone your old
MAC address from the old router to the new one. IMHO, the second
option may be difficult and probably isn't worth the effort.
Gary E
--
|Gary A. Edelstein
|edelsgNO@SPAMyahoo.com.invalid (remove NO SPAM and .invalid to reply)
|"We have met the enemy and he is us." - Walt Kelly's Pogo
- Posted by santa19992000@yahoo.com on March 29th, 2005
Gary,
How can I clone the old IP address for new MAC address, Is there anyway
I can access the forward data base (fdb) of the Router, this is Router
is Linksys Router and old one is Netgear Router, Please let me know how
can I clone the old IP address from the old Router to new Router.
Thanks in advance.
- Posted by Gary A. Edelstein on March 29th, 2005
On 28 Mar 2005 17:34:27 -0800, santa19992000@yahoo.com wrote:
that's the easiest. Simply find out the mac address for the old
router (log onto it and look) and then log onto the new router and
enter the new address.
If auto cloning is all that allowed on the new router, then hook up
the old router wan connection to the new router lan side and connect
to the new router through the old (hopefully they don't use the same
access ip, such as http://192.168..1.1) and then clone the address.
The new router should think the old one is a PC and will clone its
address.
Good luck, Gary E
--
|Gary A. Edelstein
|edelsgNO@SPAMyahoo.com.invalid (remove NO SPAM and .invalid to reply)
|"We have met the enemy and he is us." - Walt Kelly's Pogo
