Forcing DHCP renewal

[David Priban <david@maincube.net>]

Hi everybody,
I have question which is bugging me for quite some time:
I've been trying to force DHCP renewal before the lease time
expires. I'm using ISC dhcp-client 2.0pl5-6.1. Quick look at
the source shows that sending SIGUSR1 to dhclient process shoud
do the trick. Well, it does renew the lease but exits at the
same time. This is not exactly what I want.

The code which traps the USR1 signal seems to be Debian specific.
I can't find it in the original source.

If anybody out there knows the answer I woud really like to hear it.

Thanks

David Priban