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where is the DHCP server?

Your best bet is to go to your nearest electronics store Sunday that has a sale on a Netgear or Linksys router and buy one (should be $30 or less).

If you think you'll ever need wireless than get a wireless G router with

4-port switch. The router will not only handle all your local DHCP needs, but also keep your computers safe from Internet attacks - and they're cheap.

Here's the password to access your status pages on a TJ715 (not sure what actual model you will have): icu4at!

Here are the pages you can access on a TJ715:

Main http://192.168.100.1/mainPageTroubleshoot http://192.168.100.1/modemTroubleshootPageConnection http://192.168.100.1/modemRfPageAdvanced Links Event Log http://192.168.100.1/modemLogPageStatus http://192.168.100.1/modemStatusPageDS Freq http://192.168.100.1/modemDsFreqPageConfiguration http://192.168.100.1/modemConfigPageLogout http://192.168.100.1/logout

Reply to
$Bill
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dhcp serer.

routable. ISP DHCP server hands out ip address. Cable modem gets it's address and your computer gets it's address.

Here a lease packet on my linux box.

lease { interface "eth1"; fixed-address 24.1.202.185;

Reply to
Bit Twister

The DHCP server is at the ISP. Also, if your modem is like mine, it provides a DHCP server, only when disconnected from the ISP.

Reply to
James Knott

Thank you B, BT and JK, it's clear now.

Reply to
Phil Dartol

All IPs are routable. Some are supposed to be blocked from the internet.

Reply to
James Knott

Hi,

I have some very basic questions about how DHCP works with a cable modem and I couldn't find any answer in Google; and as I don't have a cable modem (yet) I cannot test:

What gives the IP address to the computer: is it the cable modem, or the server at the ISP side? Is it a "private" address (192.168.**) or a routable address?

Second question: in the users manual of some cable modem (Terayon) I read that the modem can serve more than one computer. Same question: does the modem then works as a DHCP server (with 192.168.* addresses), or are these IP addresses given by the ISP (in which case the cable transfers the traffic of more than one IP address).

Thank you.

Reply to
Phil Dartol

A server on the ISP side (unless the cable modem isn't attached to a live cable system, in which case the modem will assign a temporary IP address).

That depends on your cable company. Most use routable addresses, but some use private addresses and NAT.

As above, the IP addresses are assigned by the ISP. Some ISPs won't assign more than one IP addresses per cable modem unless you pay an additional fee. Many allow two or three. There used to be a few that allowed four, but I don't know if they still do or not. I've never heard of anyone allowing more than four without additional fees.

-Larry Jones

I don't need to do a better job. I need better P.R. on the job I DO.

-- Calvin

Reply to
lawrence.jones

James Knott wrote in news:ztmdnay-At0A9gbeRVn- snipped-for-privacy@rogers.com:

Or for your internal private network ... some cable modems have a router built in too.

Reply to
Spam Catcher

Indeed. I was using the OP's terminology but I should have said something like "publicly routable", instead.

-Larry Jones

I hate it when they look at me that way. -- Calvin

Reply to
lawrence.jones

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