Topic '[Connectivity] Cable Modem Pages' in forum 'Inside Insight' - dslreports.com

Re: [Connectivity] Cable Modem Pages

Sun, 06 Jan 2013 12:27:11 EDT

HFCNUT82 posted : The IP you mentioned is actually the IP used by the service provider's side of the cable modem. The 10.0.0.0/8 scopes are normally used by all Cable providers due to the extreme range of IPs available in the subnet. That 10. IP is used when the modem comes online after identifying the RF parameters needed to communicate with the CMTS. The IP allows layer 3 connectivity in order to obtain the TFTP package used to define your speed package and other DOCSIS parameters.

The 95% of modems I have came in contact also have another IP put in place by the manufacturer that uses an IP from the 192.168.0.0/16 scope. 9 out of 10 times this IP is in the 192.168.100.0/24 scope. This allows you to view the internal diagnostics of the modem but some firmwares have features blocked and require additional passwords. (Arris is big on this method)

As far as accessing other devices, yes it is possible since the 10. IPs are technically private ips being used on one big LAN relatively speaking. The only way prevent this would have to be put in place by the actual modem manufacturer. Reason why is that if the service provider attempted to do this, it would be an ACL (Access control list) NIGHTMARE. Pus, the firmware would be able to identify WAN and LAN access to the device.

Re: [Connectivity] Cable Modem Pages

Sat, 05 Jan 2013 16:57:31 EDT

Zero3K posted :

said by Mystic95Z
You are correct that it is a private IP, but I just put that IP in my browser and got someone else's cable modem, its not mine as I run a 192.168.x.x network. I get the following when I run a tracert on that address.

tracert 10.0.1.1

Tracing route to 10.0.1.1 over a maximum of 30 hops

1 <1 ms <1 ms <1 ms unknown [192.168.1.1 :

2 * * * Request timed out.
3 12 ms 12 ms 13 ms 74-128-45-65.dhcp.insightbb.com [74.128.45.65]
4 10 ms 11 ms 13 ms 74.128.9.225
5 20 ms 15 ms 15 ms 74.128.8.158
6 27 ms 31 ms 23 ms network-065-029-001-033.midwest.rr.com [65.29.1.33]
7 26 ms 25 ms 23 ms tge2-4.clvhoh1-rtr1.neo.rr.com [24.164.117.129]

8 25 ms 27 ms 27 ms tge2-4.lyndoh1-rtr1.neo.rr.com [24.164.115.168]

9 28 ms 25 ms 25 ms tge1-3.mntroh1-swt402.neo.rr.com [24.164.115.166]
10 27 ms 25 ms 28 ms tge1-50.mntroh1-swt401.neo.rr.com [24.164.118.66]
11 33 ms 37 ms 57 ms gig18-0.mntroh1-ar41.neo.rr.com [24.164.118.2]
12 34 ms 49 ms 40 ms 10.0.1.1

Trace complete.

That is what is also happening to me if my router's IP is different than the one I mentioned in the first post.

Re: [Connectivity] Cable Modem Pages

Sat, 05 Jan 2013 13:33:37 EDT

Mystic95Z posted :

said by brown1481:

said by Zero3K:

I am able to access other's cable modem pages (such as one on 10.0.1.1). Why is that and is there any way to prevent it?

That is a private IP address and isn't routable. If you are able to log in that means it is a device on your local network. Similar to the 192.168.x.x addresses.

You are correct that it is a private IP, but I just put that IP in my browser and got someone else's cable modem, its not mine as I run a 192.168.x.x network. I get the following when I run a tracert on that address.

tracert 10.0.1.1

Tracing route to 10.0.1.1 over a maximum of 30 hops

1 <1 ms <1 ms <1 ms unknown [192.168.1.1]
2 * * * Request timed out.
3 12 ms 12 ms 13 ms 74-128-45-65.dhcp.insightbb.com [74.128.45.65]
4 10 ms 11 ms 13 ms 74.128.9.225
5 20 ms 15 ms 15 ms 74.128.8.158
6 27 ms 31 ms 23 ms network-065-029-001-033.midwest.rr.com [65.29.1.33]
7 26 ms 25 ms 23 ms tge2-4.clvhoh1-rtr1.neo.rr.com [24.164.117.129]

8 25 ms 27 ms 27 ms tge2-4.lyndoh1-rtr1.neo.rr.com [24.164.115.168]

9 28 ms 25 ms 25 ms tge1-3.mntroh1-swt402.neo.rr.com [24.164.115.166]
10 27 ms 25 ms 28 ms tge1-50.mntroh1-swt401.neo.rr.com [24.164.118.66]
11 33 ms 37 ms 57 ms gig18-0.mntroh1-ar41.neo.rr.com [24.164.118.2]
12 34 ms 49 ms 40 ms 10.0.1.1

Trace complete.

Re: [Connectivity] Cable Modem Pages

Mon, 31 Dec 2012 18:22:26 EDT

brown1481 posted :

said by Zero3K:

I am able to access other's cable modem pages (such as one on 10.0.1.1). Why is that and is there any way to prevent it?

That is a private IP address and isn't routable. If you are able to log in that means it is a device on your local network. Similar to the 192.168.x.x addresses.

[Connectivity] Cable Modem Pages

Mon, 31 Dec 2012 01:05:51 EDT

Zero3K posted : I am able to access other's cable modem pages (such as one on 10.0.1.1). Why is that and is there any way to prevent it?