| Author |
Message |
Tim C.
Guest
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 Posted:
Tue Jan 18, 2005 2:48 am Post subject:
IP address lease expiration |
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We have Earthlink as the ISP over BellSouth phone lines, a Netopia
3341-ELK DSL modem running PPPoe, and a Linksys router.
How long is my IP address good for? How can I determine when it will
expire?
I have been through the internal configuration web page on the DSL
modem and found the IP address but not a lease expiration date or time.
Thanks,
Tim C. |
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Neil W Rickert
Guest
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| Posted:
Tue Jan 18, 2005 3:13 am Post subject:
Re: IP address lease expiration |
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"Tim C." <fs63@volcanomail.com> writes:
| Quote: | We have Earthlink as the ISP over BellSouth phone lines, a Netopia
3341-ELK DSL modem running PPPoe, and a Linksys router.
How long is my IP address good for? How can I determine when it will
expire?
|
As far as I know, there isn't any lease time connected with PPPoE.
You have the IP address until you disconnect or are disconnected. If
you keep your modem/router turned on, and if your line quality is
good enough that there are no accidental disconnections, then you
could keep the IP until such time as the needs of equipment
maintenance require temporarily disconnecting you. |
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DevilsPGD
Guest
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| Posted:
Tue Jan 18, 2005 1:43 pm Post subject:
Re: IP address lease expiration |
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In message <7MWGd.16002$_X7.14003@newssvr33.news.prodigy.com> Neil W
Rickert <rickert+nn@cs.niu.edu> wrote:
| Quote: | "Tim C." <fs63@volcanomail.com> writes:
We have Earthlink as the ISP over BellSouth phone lines, a Netopia
3341-ELK DSL modem running PPPoe, and a Linksys router.
How long is my IP address good for? How can I determine when it will
expire?
As far as I know, there isn't any lease time connected with PPPoE.
You have the IP address until you disconnect or are disconnected. If
you keep your modem/router turned on, and if your line quality is
good enough that there are no accidental disconnections, then you
could keep the IP until such time as the needs of equipment
maintenance require temporarily disconnecting you.
|
With DHCP, you're assigned the IP and that IP is considered yours for
the duration of the lease.The ISP cannot force you to release the IP
(they can deny you access while using the IP, but they can't tell your
computer to drop the IP)
With PPPoE, you're connected only as long as both sides agree to stay
connected, either side can issue a disconnect at any time, and for any
reason. The reason might be an idle timeout or a maximum session
length, or it might be dynamic (capacity driven, for example) -- I
worked for an ISP that had PPP sessions idle timeouts automatically
reduced when less then 15% of our active modems were available to accept
a phone call. The result was that during peak hours the idle disconnect
was significantly shorter then non-peak hours. This avoided the need
for artificially low idle disconnects at 3am, but also reduced the odds
of a busy signal during peak hours.
PPPoE is the same ball of wax -- It allows an ISP to more easily
oversell service (they can have more customers then IPs) then what is
possible with DHCP.
--
A cheap shot is a terrible thing to waste. |
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Tim C.
Guest
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| Posted:
Fri Jan 21, 2005 8:03 am Post subject:
Re: IP address lease expiration |
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| Quote: | that IP is considered yours for the duration of the lease.
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I understand your post, but that is the essence of my question.....how
can I find the duration/length of my lease?
Thanks. |
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DevilsPGD
Guest
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| Posted:
Fri Jan 21, 2005 8:04 am Post subject:
Re: IP address lease expiration |
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In message <1106282644.571670.177390@f14g2000cwb.googlegroups.com> "Tim
C." <fs63@volcanomail.com> wrote:
| Quote: | that IP is considered yours for the duration of the lease.
I understand your post, but that is the essence of my question.....how
can I find the duration/length of my lease?
|
With DHCP, the Linksys "status" page will tell you.
With PPPoE, go back and read my previous post.
--
I see dumb people, walking around like regular people.
They don't see each other. They only see what they
wanna see. They don't know they're dumb. |
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David Efflandt
Guest
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| Posted:
Sun Jan 23, 2005 7:20 am Post subject:
Re: IP address lease expiration |
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On 20 Jan 2005 20:44:04 -0800, Tim C. <fs63@volcanomail.com> wrote:
| Quote: | that IP is considered yours for the duration of the lease.
I understand your post, but that is the essence of my question.....how
can I find the duration/length of my lease?
|
As far as your PC I don't know if 'ipconfig /all' shows DHCP lease time
(winipcfg in older Win versions did) from your Linksys, but the Linksys
should have some setting for that on its LAN. If your Netopia does not
give a clue of DHCP lease time to Linksys, then Linksys logs might.
As previously mentioned, there is no lease time for PPPoE (it is not DHCP
which is a different protocol). The only time it gets new IP is when it
reconnects for whatever reason it was disconnected (unless interrupted so
brief it did not actually do PADT to terminate the connection). |
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Tim C.
Guest
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| Posted:
Thu Jan 27, 2005 6:45 am Post subject:
Re: IP address lease expiration |
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Thanks to all who answered my post. I think I have a better
understanding of PPPoe and the IP address.
Thanks,
Tim |
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