View Full Version : Are Comcast @home IP's static?
02-11-01, 10:59 PM
Asking because my Linksys router will not get an IP address automatically. So I typed in the IP, DNS, ect. that Comcast gave me. Will my IP address every change?
02-11-01, 11:16 PM
I've had Comcast since september, so far they haven't changed my IPs.
Eventually we want to change it to the dynamic system, but as for now your IP WILL NOT change. We have had problems just simply trying to GET a new ip for some customers.
There is a thread on this sunject that a guy with @home service recieved letter from @ home telling him to switch to DHCP or else loose connection, 3 or 4 days ago
02-12-01, 01:00 PM
I've had the same IP for almost 2½ years :rolleyes: :p :D
02-12-01, 01:58 PM
Everyone on the @home network is encouraged to configure their stack dynamically. Very slowly, market by market, @home is converting over to true DHCP (where the IP really changes). This is inevitable because of the need to manage their IP pool. It is safe to say that about 98% of their markets do not have true dynamic IP addresses.
[ 02-12-2001: Message edited by: damaged ]
02-12-01, 02:37 PM
It helps to remember that the provision of IP addresses is only part of the role of DHCP.
If a provider is to be as responsible as we want them to be, they have to do things such as move to larger quarters, divide overloaded serving groups, install new gateways, etc.
DHCP is intended to support the implementation of those changes. If we disable DHCP, not only do we mess ourselves up when any component of the services provided by DHCP changes, we mess up others and run up the cost for our ISP's, spending money we would really like spent on more bandwidth, etc.
If you want to approach it from the prospective that you'll change to DHCP only when the pry the smoking gun from your dead hands, we are all in trouble.
02-12-01, 02:39 PM
Yep, USUALLY @home's IP's are static, but they reserve the right to change them for their own upgrading purposes. I had the same IP for a year and started inputting my connect statically after getting home from LANS etc.
Then about 6 months ago, they randomly changed it to another addy. They did this without contacting me and i was frustrated for about a week with some severe decrepit lag, i had never seen before (Yep, i could still log-in using the old IP). It wasn't until i called up tech support claiming that my service had gone to hell, that they told me i was supposed to be using my new IP and they were forced to do some recent address switching in my neighborhood. Once i enabled DHCP, and selected 'automatically obtain IP' i got my solid connect back.
Now i just leave it in 'auto' mode because i never wanna got through that junk again and hope they don't move me around too much.
Technically, the way things are supposed to work is that with @home, you're supposed to be set up dynamically. We've had issues here with the DHCP servers of late, so our installers have gone in and set up customers computers statically. That's not to say that they will be set up statically permanently, its just a workaround until the DHCP server is back up and running again.
The problem with doing it this way is that when @home does finally decide they want to shift an ip pool, everyone who is set up statically is going to start having problems with their connection. Those who can still connect will be connecting under an ip that is assigned to someone else, and will be causing problems for that person as well.
Bottom line, @Home is dynamic, with ips that change very little if at all (at least for now).
They always try to connect you dynamically but if they cant then the give you a static connection. Just my 2cents.
I have never been able to connect dynamically, but I have only had the service for a month.
All @Homes IP's are static but they reserve the right to change them at any time. Thats why they set you up DHCP. I have heard rumors that they are going to be changing them often now. Has anyone else heard this?
02-13-01, 12:58 AM
i was setup static but when i went to member services to order a second IP soon as it went through i went offline until today when i was delivered a new modem that was DOCSIS compliant and handle multiple IP addresses. I now setup to connect to a DHCP server and have 2 new ip addresses for the first time in over a year.
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