Reverse name lookup with WINS

Hi

I'm using a couple of windows and Linux machines running samba, connected to
internet by some DSL gateway which handle DHCP service. I don't want to have
an internal DNS server, I'm only relying on the ones provided by my ISP.

For my internal name resolution, my Linux boxes are using WINS (added in
nsswitch.conf). I would like to have the reverse resolution (IP-to-name
resolution handle) to work, but I cannot. Help would be welcome

NB : The reason for that is that I'm using LISA for browsing my network and
I'd like to see name rather than IP addresses. Lisa does a gethostbyaddr()
call after having found a valid IP address and it seems that the reverse is
done only based on hosts and DNS.

Thanks