Re: which command can be used to show IP address

[Neil Dugan <debian@butterflystitches.com.au>]

Marc Shapiro wrote:
> Andrew M.A. Cater wrote:
>
> > If you use DHCP to configure your cable modem, chances are that you
> > have a dynamic IP of some sort.  
> <SNIP>
>
> > You might want to look at registering your ip with one of the dynamic
> > dns services, who will effectively map your address to a static
> > for you. ddns rings a bell as a Debian package.
> >
> >  
> If my DSL modem is using NAT, so that my box shows a 192.xxx.xxx.xxx IP 
> address but the outside world is seeing 71.xxx.xxx.xxx can I still use a 
> service like dyndns?  Will that get past the modem to my box, or will it 
> get stuck?
It is most likely that your modem has a firewall built into it.  You 
will need to configure this to allow incoming connect to port 80 and 
maybe port 443 (for https).

You can check the firewall of the modem at several sites, I like 
'Shields Up' at http://www.grc.com/default.htm

Regards Neil.