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Re: knowing my IP address behind NAT firewall



On Tue, May 31, 2005 at 11:25:10PM +0100, Lee Braiden wrote:
> 
> Since you asked, and I had wondered about this myself previously, I just 
> worked it out (or, rather, stumbled across it).  The following works for me:
> 
> ping -c 1 hop www.google.com | grep 'bytes from' | cut -d ' ' -f 5 | cut -d 
> '(' -f 2 | cut -d ')' -f 1
> 
> Since the ping manpage doesn't actually seem to explain what the hop keyword 
> does, I'd love to know... :)

Try this:

lynx -dump http://checkip.dyndns.org |sed -n '/Current/s/.*: \(.*\)/\1/p'

It doesn't rely on ICMP packaets, which are blocked by many ISPs and/or
network admins.

-Roberto

-- 
Roberto C. Sanchez
http://familiasanchez.net/~sanchezr

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