> > > I need to get my public IP address from a LinkSys cable router and
> don't
> > > have any idea where to start.  The LinkSys is doing NAT and my FBSD
> box
> > > in on the private network on the inside.  What commands and/or ports
> are
> > > there that would provide the public IP address from the command line
> so
> > > I pass the IP to a script?  Any ideas?
> >
> > The way I do it with my router (BEFW11S4 V2) is to use lynx to
> download the
> > HTML status page from the router and extract the public IP address.  I
> do
> > this in a cron job every 15 minutes, and when it notices an IP change,
> it
> > fires off my dynamic DNS updates.
> This seems like the best way.  Would you be willing to share your script
> that grabs the status page and extracts the IP?  I'm not very good with
> regular expressions yet and would appreciate the kick start.

The sequence of commands I used is quite dependent on the format of the page
(which has changed in the past after firmware upgrades).

/usr/local/bin/lynx -dump -auth=username:password http://routerip/Status.htm
| /usr/bin/grep "IP Address" | /usr/bin/tail -1 | /usr/bin/awk ' { print
$3 } '

Matt Emmerton

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