[PLUG] Preparing for DSL DHCP IP Address

[Mike Connors]

>
> Ah, you mean to ping the last known public ipaddr of the DSL modem.
> That wasn't clear.
>
>
> [ Internal host ] --- [ DSL ] ---- [ ISP ] --- [ whatsmyip.org ]
>
> So, your suggestion is to have a script on the internal host that
> every hour or so queries whatsmyip.org and every
> <much-more-frequently> pings the ipaddr that query returns.  If the
> ping fails significantly, re-query whatsmyip.org immediately.  If
> ipaddr has changed, fire off the DNS change.
>
> Precisely.