How to gracefully handle unavailable DHCP server

[Danie Roux]

Our DHCP server is notoriously unstable. If pump can't renew the lease,
it then quits. Which means I have to go up 5 stories later to ifup eth0.

What is the easiest/best way to let pump perodically try again?

-- 
Danie Roux *shuffle* Adore Unix