Set up in a nutshell 

Running NetBSD 1.5.2 as a gateway and dns to my local network.  Working just fine.

Now I wish to use a modem to connect to my isp.

This (right now anyway) I do not want to connect at boot time.

I can connect, I am still having one or two problems but I am working on it.

My question is this, I need to use dhclient so that I can connect to my isp and get the dns etc.  On boot time it fails and I have to press control-C to move on.

I want to start the ppp connection when I am ready. How do I get it to still request the dhcp info? also how do I stop it from looking for it at boot time?