Re: null modem cable

Andy Civil <[email protected]>
Newsgroups gmane.user-groups.linux.ottawa.general
Message-ID <[email protected]>
On 2010-10-20 5:13 PM, James wrote:
>   I have a Netgear WGR615V router that has a female rs-232 (labelled) port.
> I want to connect to it but I have no idea what kind of cable I need.
> I'm looking for someone with a cable to try it for me.
> I don't want to buy a cable unless I know it will work.
> I think it's broadcom based.
> The eventual goal is to get it working with dd-wrt.
> I want to see what it shows. :-)

You 'forgot' to tell us about the "Warning - Do Not Use" labelled cap over the 
RS232 port ;-)

Here's a quote from 
<http://www.tomsguide.com/us/review-aoltotaltalk,review-632-2.html>

> Regardless of why it was there, the "danger" sticker was an irresistible beacon for me! Trying this port out was just a matter of the right cable, a dumb-terminal program, and a bit of trial-and-error for baud/parity etc. It turned out that it wanted a pretty standard 9600 baud, no parity and one stop bit. Using this setting, I was able to see VxWorks boot-up messages, some debug messages, and an attempt to acquire a new flash image via tftp. Playing with it a bit more, I found that when the network cable was unplugged, the box presented a user name and password prompt. I tried a few standard combinations but never had success. I suspect that with some more research on similar boxes, one could find the correct combination and explore further.

Hope this helps.

-- 
Andy
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