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Posted by Frankster on August 12, 2006, 9:57 am
>
>> Can someone tell me the IP to reach the config pages of a Comcast modem?
>> I'm
>> sorry, I don't know the model number. Perhaps if you just tell me what
>> works
>> on yours I can try it. I thought it was 192.168.1.1 but cannot get a
>> response at that address.
>
> It's probably 192.168.100.1, but see below.
>>
>> The plan is to insert a Linksys wireless/wired router after the Comcast
>> modem to provide service to one wired and one wireless computer. I'm not
>> having much success. I suspect that possibly the Linksys is using the
>> same
>> default private IP (external inface) as the Comcast modem, but I can't
>> tell
>> for sure becuase I cannot get into the Comcast. I have no problem getting
>> into the Linksys config at 192.168.1.1.
>
> You don't need to access the modem configuration page to do this. Try
> 1. Remove power from both the modem and router.
> 2. Connect the router to the modem.
> 3. After the power has been off for 15-30 seconds, power up the
> modem and wait for it to establish sync.
> 4. Power up the router and configure it through its (the router's)
> configuration page.
>
> I've been using a configuration like this for several years.
>>
>> I've only worked on one other Comcast modem, and I think I remember it
>> using
>> 192.168.1.1 as the config IP. I think it assigned a private IP to the
>> hosts
>> as well, but I can't remember for sure.
>>
>> This particular Comcast modem has assigned a public IP (via DHCP) to the
>> current single UTP connected computer. That works fine. What I want is to
>> have it assign that same IP to the Linksys outside interface and then let
>> the Linksys assign internal private IPs.
>>
>> Any help on config is appreciated. Hopefully I do not have to use the
>> PPoE
>> feature of the Linksys. I'm hoping to continue to allow the Comcast modem
>> to
>> do all of that, as it is now.
>>
>> I'm experienced in networking but I have never set up a network off of a
>> Comcast device. The owner has no documentation (of course!).
>>
>> Thanks,
>>
>> -Frank
>
> --
> Tom Stiller
>
> PGP fingerprint = 5108 DDB2 9761 EDE5 E7E3
> 7BDA 71ED 6496 99C0 C7CF
Thank you Tom... I will try the above as soon as my client returns from his
vacation in Mexico (Damn! Wish I was there! :) ). Although, I went through
plenty of release/renew cycles. But the powering on in sequence idea might
work better.
Can you tell me if the Comcast modem normally assigns a public IP to its
hosts? I wasn't sure if this was the default (normal) config or if by chance
there was something different about this installation. Again, thanks!
-Frank
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