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Forum Discussion
CM2200 on 192.168.100.1
I just bought a CM1100 and am extremely annoyed to find that its IP address is fixed at 192.168.100.1. The network I am installing it on uses the 192.168.2.xxx subnet, which means that the cable mod...
> [...] I would have expected [...]
Exactly. Hence:
> It does? Did you actually try it, or are you basing your complaint
> on how you expect this stuff to work? What, exactly, did you do?
In the words of the philosopher Williams, "If you don't think too
good, don't think too much."
> [...] the Linksys to refuse to forward it, but apparently not -
I'd expect that your ISP would "refuse to forward it", if that's any
consolation.
> [...] assuming you have actually made/seen this work.
Everyone who owns a cable modem has (or could have) seen this work.
> [...] It would have been nice to get it without the snotty attitude,
> but I'll take it either way. [...]
Fix your own attitude, and that of others may follow, with no extra
effort on anyone's part. Screaming about all "this stupidity" which
you're being forced to endure, rather than _asking_ about how the simple
procedures in the various User Manuals could possibly work, for example,
might have been a better start. Just a thought.
Deciding whether the original problem involved "stupidity" someplace,
or just a smattering of ignorance (which is normally a simpler obstacle
to overcome), is left as an exercise for the reader.
"192.168.100.1 is a fixed address for a reason and can not be changed. Its the address of the modems web page for user access."
In all hardware I have set up except this box, my experience is that the port 80 access address is easy to change. For example, I have set my DSL box (that I am now changing out) to use 192.168.2.251. I just set the LinkSys WAP/router that is replacing it to also use 192.168.2.251, replacing the 192.168.1.1 default. My two NAS boxes use 192.168.2.223 and 224, hard addresses that I have set. IIRC they defaulted to DHCP.
> In all hardware I have set up except this box, my experience is that
> the port 80 access address is easy to change. [...]Welcome to the world of the DOCSIS cable modem.
> [...] My two NAS boxes use 192.168.2.223 and 224, hard addresses that
> I have set. IIRC they defaulted to DHCP.Almost everything these days defaults to using DHCP. When you say
"hard address", do you mean a static address (configured on the device
itself), and not a reserved dynamic address (configured on the (DHCP
server on the) router)? If you're using static addresses, then my
advice would be to shrink the DHCP pool, so that the router is never
tempted to grant any of your static addresses to some DHCP client
device.You could, for example, change the DHCP pool from its (likely)
default range of ".2" - ".254" to, say, ".2" - ".199". You could then
safely use ".200" - "254" in any way you want, without fear of the DHCP
server causing a conflict.
Around here, almost all my devices have static or reserved addresses,
all outside the DHCP pool. (Static for the antique computers which
don't handle DHCP well, if at all; reserved for almost everything else.
My DHCP pool is only 16 wide. A Roku box uses it.)I know all that and have done all that. Many times, on many network configurations. Did not ask for any advice, actually.
> I know all that and have done all that. [...]
Sorry to have bothered you. With my weak psychic powers, and your
non-standard terminology, distinguishing what you know from what you
don't know is beyond my limited capabilities.
Again, for ALL cable modems, (DOCSIS) the 192.168.100.1 is a hard coded default IP address of the modem web management page only. This is not user configurable nor changeable. Do not confuse cable modems with DSL or other non cable modems. You can access the cable modems web page directly or thru a connected router as well using this IP address. The modem is just a modem thus passing thru any and all WAN side traffic from the ISP to a connected wired PC or a DHCP router of your choice where you can set any IP address configuration you want on this router there. Conigure your router of your choice for what you need and desire AT the router, theres nothing to configure on the CM modem.
Good Luck.
OldPilot2 wrote:"192.168.100.1 is a fixed address for a reason and can not be changed. Its the address of the modems web page for user access."
In all hardware I have set up except this box, my experience is that the port 80 access address is easy to change. For example, I have set my DSL box (that I am now changing out) to use 192.168.2.251. I just set the LinkSys WAP/router that is replacing it to also use 192.168.2.251, replacing the 192.168.1.1 default. My two NAS boxes use 192.168.2.223 and 224, hard addresses that I have set. IIRC they defaulted to DHCP.
