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cablemdiag 1.03

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DOCSIS Cable Modem Diags. Free

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1.2 MB
Developer
Rui Fernando Ferreira Ribeiro

cablemdiag (formerly known as DOCSIS Cable Modem Diags) attempts to expose some of the more important maintenance variables to the public, allowing their manual exposure. In addition, it also display a warning when the values of the cable's signals are off the range. (i.e. cable not good). Now it also has context sensitive help explaining the data collected.

What's New

Version 1.03:

Network error message slightly modified.
Cable modem internal date and date in logs had month wrongly converted, it was 1 month ahead (Error converting SNMP to UTC date format).
webloc file name changed to "Latest Version".

Requirements
PPC / Intel, Mac OS X 10.5 or later.

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cablemdiag User Discussion (Write a Review)

ver. 1.x:

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+17

Hermie commented on 28 Jun 2009

Can't find a Cisco Scientific Atlanta EPC3000 Eurodocsis 3. It really lives on 192.168.100.1 though...

[Version 1.0]

2 Replies

Anonymous commented on 28 Jun 2009

It can be the community or the operator forbidding CPEs talking with the modem. Are you able to give more details?

Anonymous commented on 29 Jun 2009

Would you be able to tell or e-mail me the output of the command run in Terminal:
snmpwalk -c public -v1 192.168.100.1 1.3.6.1.2.1.2.2.1.6.1

?

If it works, please e-mail me, I dont have access to a DOCSIS 3.0 and would like to ask you to run one or two scripts.

Regards,
Rui Ribeiro

Chris Bulow tipped on 24 Jun 2009

Does anybody happen to know the community address that BrightHouse use in Florida? "Public" isn't :)

[Version 0.99b]

1 Reply

Anonymous commented on 24 Jun 2009

That is, if they do allow the costumer to talk SNMP at all with the cable modem...

Acollado commented on 13 Jun 2009

I'm using Charter now but I've also used Adelphia, Time Warner Cable, and Comcast in the past.

Some of the router modems, like the Motorola SB 900, use 192.168.1.1 or 192.168.0.1 and the default community name may be "public" but some providers change it when the modem downloads the config file and it'd be useful if we could enter something other than the default "public"

[Version 0.95b]

3 Replies

Anonymous commented on 14 Jun 2009

I agree that the community can change AFTER the modem downloads the configuration. However, as a customer, how do you know the SNMP community the ISP uses?

Anonymous commented on 14 Jun 2009

I«ll make modifications to the program to give it the capability to change the community string and IP address of the modem.

thanks for the feedback.

Rui

Anonymous commented on 14 Jun 2009

yet about the 192.168.0.1 addresses, I do recall they were the ethernet address on wireless cable modem routers from webstar. However, they also always answer to 192.168.100.1. That is, they always answer unless the modem is locked, but bridging is blocked by operator, in which case, you can only use the ethernet address to talk SNMP with the modem. Care to ping 192.168.100.1 and see if it answers?

Acollado commented on 13 Jun 2009

Doesn't work with my Motorola 5101 cable modem because the SNMP community public/private names aren't what ever this app is using.

Is there any way to change the SNMP community names from default?

Also is there any way to change the IP used to access the modem? 192.168.100.1 isn't always the correct one.

[Version 0.95b]

2 Replies

Anonymous commented on 13 Jun 2009

The community is public by default in all latest DOCSIS cable modems, as far as I aware. What can happen, is the provider changing communities and/or only allowing SNMP access from their server range (i.e. thus blocking SNMP from the customer netblock range). Any of the latest DOCSIS modem also answers to 192.168.100.1 - please read the FAQ you have with the help.
Care to say which provider you're using?

Regards,
Rui

Anonymous commented on 14 Jun 2009

Been remembering some things and investigating a bit too. As far as I recall, those IP addresses were used in the past, nowadays everybody uses 192.168.1.100, or so I think. Care to give me some URL links? I could write detection for another commonly used IP address, if that means better usability for the program. As for the community, I will create a preference box.

Regards,
Rui

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