Re: Ip own modem/router ADSL

[A J Stiles <deb64@earthshod.co.uk>]

On Tuesday 15 November 2005 08:42, antonio giulio wrote:
> Hi,
>
> how can I see my ip modem (it's a router too, and I connect to it via
> dhcp)?
>
> with "ip route show" I can see just local address 192.168.1.1, but I
> wanna know real address on internet.
>
> Thanks,
> Giulio

Assuming the router is working and connecting to the internet, but you can't 
see anything on the configuration page  {you have tried training a web 
browser on its "internal" IP address, haven't you?},  do a traceroute to 
somewhere like www.debian.org or bbc.co.uk.  Use the -n option to show IP 
addresses in numeric form, rather than hostnames:

# traceroute -n www.bbc.co.uk

If you are lucky, the first hop will be your router's own external IP address.  
If you are unlucky, the first hop will be an "unroutable" 10.x.y.z address -- 
this means your ISP is connecting you through a secondary router  {mine does 
that}.  In which case, get someone whose IP address you *do* know to put this 
in their cgi-bin:

#!/usr/bin/perl -w
use strict;
my $ip_address = $ENV{"REMOTE_ADDR"};
print qq|Content-type: text/plain

Your IP address is $ip_address.
|;
exit 0;

Then visit it with a web browser.

Drop me an e-mail off-list if you need access to mine  {I don't want the 
spammers who trawl this list to peddle their counterfeit drugs, pirated 
software and worthless shares slashdotting me}.

-- 
AJS
delta echo bravo six four at earthshod dot co dot uk