On Mon, 28 Jul 2008 13:47:28 -0700 (PDT), Vwaju wrote:

>I leased a static IP address from RCN (which has a telecommunications
>monopoly in our building). I have had difficulty configuring my
>network using this address, and I come to find out from RCN that it's
>"not truly static".
>
>I can't get a clear story from RCN about what this could possibly
>mean. It would seem that a domain name has to be mapped to a
>*permanent* IP address, and that an address is either *static* or it's
>*not*. (I am a residential customer of RCN, but RCN claims that the
>"not truly static" IP address they sold me is the same thing that they
>sell to business customers who are hosting their own web servers.)
>
>I don't want to spend any more time trying to configure my network
>until I get clear on whether my the IP address I'm paying $20/month
>for is *really* static or not.
>
>I would appreciate any insights into this question.

Speaking for what I know about -- one example here -- I have a static IP,
but it was dynamically allocated when I joined the ISP over four years ago.
Since then the ISP changed wholesaler once, and my static IP also changed
to a new IP block owned by the ISP. All I had to do was plug the new IP
addr into my DNS service[1].

I have ADSL and have the modem running bridged mode into a linux box with
rp-pppoe. So when I make a connection to the ISP I get told my IP addr,
the first hop IP and given a pair of nameserver IPs.

[1] As far as domain name goes, I use a free service (dyndns.org) which
also allows dynamic IPs, there are notifier scripts around to update the
DNS. Only problem here is I have the generic ISP reverse lookup, but that
doesn't matter 'cos I don't do direct email to the world from firewall
box.

Sorry I've not been following this thread, but how do you connect to the
ISP or service? If it's DHCP your machine should get all info required to
connect (nameservers, first hop IPs) automatically.

Grant.
--
http://bugsplatter.mine.nu/

Hallo, Vwaju,

Du meintest am 28.07.08:

> I leased a static IP address from RCN (which has a telecommunications
> monopoly in our building). I have had difficulty configuring my
> network using this address, and I come to find out from RCN that it's
> "not truly static".

Sorry - but that is no slackware problem.

Viele Gruesse
Helmut

"Ubuntu" - an African word, meaning "Slackware is too hard for me".

On Jul 29, 11:28 am, +Alan Hicks+ wrote:
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> On 2008-07-28, Vwaju wrote:
>
> > I leased a static IP address from RCN (which has a telecommunications
> > monopoly in our building). I have had difficulty configuring my
> > network using this address, and I come to find out from RCN that it's
> > "not truly static".
>
> Need more information. Is this a cable internet service? DSL? Do
> they drop fiber or ethernet to your location? What? There's simply no
> way to answer this question without a few more details.
>
> - --
> It is better to hear the rebuke of the wise,
> Than for a man to hear the song of fools.
> Ecclesiastes 7:5
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Alan --

Thanks for your response.

I have a cable modem from RCN.

I'm guessing the modem is proprietary and I don't know whether it is
DOCSIS compliant. (I could find these things out).

I assume that the cable service is fiber from RCN to the "head-end"
and cable from the head-end to our apartment. (I'm going by Andrew
Tanenbaum's
"Computer Networks".)

Best Regards,

Vwaju
New York City

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Trim your quotes.

On 2008-07-29, Vwaju wrote:
>> > I leased a static IP address from RCN (which has a telecommunications
>> > monopoly in our building). I have had difficulty configuring my
>> > network using this address, and I come to find out from RCN that it's
>> > "not truly static".
>
> I have a cable modem from RCN.
>
> I'm guessing the modem is proprietary and I don't know whether it is
> DOCSIS compliant. (I could find these things out).

What happens when you just try to get a DHCP assigned address? Does it
give you the static IP and routes? A lot of ISPs (mostly DSL though)
do it this way. You just always get the static IP assigned to you via
DHCP.

> I assume that the cable service is fiber from RCN to the "head-end"
> and cable from the head-end to our apartment.

That's immaterial. The physical layer is transparent as far as IP is
concerned.

- --
It is better to hear the rebuke of the wise,
Than for a man to hear the song of fools.
Ecclesiastes 7:5
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On Jul 30, 1:48 pm, +Alan Hicks+ wrote:
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> Trim your quotes.
>
> On 2008-07-29, Vwaju wrote:
>
> What happens when you just try to get a DHCP assigned address? Does it
> give you the static IP and routes? A lot of ISPs (mostly DSL though)
> do it this way. You just always get the static IP assigned to you via
> DHCP.

So far, I always seem to get the same address -- just not the one RCN
told me was my static address.

RCN tells me my static address is 207.237.37.110

I have 2 Linux boxes . Whenever I reboot, one always seems to pull
192.168.2.4 and the other always seems to pull 192.168.2.3 (according
to ifconfig).

Thanks for your help.

Vwaju
New York City

> - --
> It is better to hear the rebuke of the wise,
> Than for a man to hear the song of fools.
> Ecclesiastes 7:5
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> iKIAoN7posAcwLYuKEgLMvczjaMf4Rm+
> =jUZq
> -----END PGP SIGNATURE-----

Vwaju wrote:

>
> So far, I always seem to get the same address -- just not the one RCN
> told me was my static address.
>
> RCN tells me my static address is 207.237.37.110
>
> I have 2 Linux boxes . Whenever I reboot, one always seems to pull
> 192.168.2.4 and the other always seems to pull 192.168.2.3 (according
> to ifconfig).

Do you have a Router? If you do it should have 207.237.37.110 on one
interface and 192.168.2.something(usually a 1 or 254) on a different
interface.

If you go to http://www.ipchicken.com it will tell you your public IP
address.


--
Ed

Vwaju wrote :

> RCN tells me my static address is 207.237.37.110
>
Thats so true, if you check your message-header you'll find this:
NNTP-Posting-Host: 207.237.37.110

> I have 2 Linux boxes . Whenever I reboot, one always seems to pull
> 192.168.2.4 and the other always seems to pull 192.168.2.3 (according
> to ifconfig).

Thats because you are behind a router.
--
Thomas O.

This area is designed to become quite warm during normal operation.

Hallo, Vwaju,

Du meintest am 31.07.08:

> So far, I always seem to get the same address -- just not the one RCN
> told me was my static address.

> RCN tells me my static address is 207.237.37.110

> I have 2 Linux boxes . Whenever I reboot, one always seems to pull
> 192.168.2.4 and the other always seems to pull 192.168.2.3 (according
> to ifconfig).

What tells

http://myip.dk
http://myip.nl

Viele Gruesse
Helmut

"Ubuntu" - an African word, meaning "Slackware is too hard for me".