Eric on 18 Nov 2008 14:47:54 -0800

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Re: [PLUG] network hardware follies

Thanks to all who offered their thoughts on this - I had a measure of success 
with it:

Since it has 4 router ports and offers DHCP the box gave up it's IP "secrets" 
when I hooked my laptop to one of it's router ports, opened a dos box, and said:
    ipconfig /release
    ipconfig /renew

It WAS which indicates to me that my route hack on my Linux 
workstation was NOT effective.  (memo to self: learn more about network routing 
and Linux commands.)

There are three different accounts in the box and I have both the basic-level 
("admin") and the mid-level ("user") account information.  However, neither work 
for the Voice tab which requires the highest level ("Admin").

I've been unable to either break in (a tool called CYT if I recall correctly) or 
re-flash it with a modified version of the BIOS that I downloaded from Linksys. 
  This means that the VoIP access is still locked.

For now I'll just use it as a router on my workbench and hope that I can find 
some more "hacking" information.  Everything that I found about the RTP300 was 
2007 or earlier :-(

Thanks again!


PS it is a Vonage configured unit.

David Kuntz wrote:
> On Mon, Nov 17, 2008 at 11:32 PM, Claude M. Schrader
> <> wrote:
>> On 09:06 Sat 15 Nov     , Eric wrote:
>>> I'd like to hook it directly to a pc running Kubuntu and run nmap.  Can I use a
>>> "crossover" Ethernet cable for that purpose?  I just happen to have one.  If I
>>> do that is the IP address even relevant as long as it goes out of the Ethernet port?
>>> What kind of nmap scan would be the quickest and still be most likely detect the
>>> unit?  I tried a ping scan over the home network and it takes about 40 seconds
>>> to scan the range.  At that rate the entire range
>>> will be about 3 hours.  I'm trying not to think about the range.
>>> Okay, okay... I thought about it: 728 hours or about 1 month.  I'd rather try #2
>>> or #3 first :-)
>> here's another method you could use:
>> -connect a computer directly to the router, using a crossover cable if
>> necessary. (newer machines can auto-detect this)
>> -set your computer's IP to the gateway IP of the subnet you are scanning
>> (
>> -ping the broadcast IP, in this case you would do, "ping -b".
>> -It may or may not respond to the ping, but check your computer's arp table
>> with "arp -a". If it is configured for an IP in that segment, it should be in there.
>> Claude
>> ___________________________________________________________________________
>> Philadelphia Linux Users Group         --
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> Is the MAC listed anywhere on the device?  If it doesn't show up in
> the arp table after pinging the broadcast IP you can try to assign it
> an IP using arp:
> # arp -i eth0 -vs <ip addy> <MAC>
> This has worked in the past for me with printers, UPS units, and the like.
> David
> ___________________________________________________________________________
> Philadelphia Linux Users Group         --
> Announcements -
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#  Eric Lucas
#                "Oh, I have slipped the surly bond of earth
#                 And danced the skies on laughter-silvered wings...
#                                        -- John Gillespie Magee Jr
Philadelphia Linux Users Group         --
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