Belgacom ISP force IP renewal for their residential ADSL customers every 36 hours for whatever stupid purpose (annoy us, sell their fixed IP option, etc.).
Here’s how I force my Cisco 837 router to renew its WAN IP every night at 01:00am :
<code>kron occurrence RENEW_IP at 1:00 recurring policy-list RENEW_IP kron policy-list RENEW_IP cli clear interface Dialer 1</code>
I’m less likely to lose my SSH/VPN connections now..