Is there a reason to keep dhcpcd running after an Internet connection is established? - Re: Systemd service life cycle

[Rashkae]

On 16-04-13 02:13 PM, Ralf Mardorf wrote:
> So what is continuing running the daemon good for after the Internet 
> connection is established?

IP Addresses are leased from the DHCP server for a fixed amount of 
time.  The DHCPCD daemon is responsible for renewing that lease before 
it expires, (and, if requested by the server at that time, change the IP 
address of the client.)

I have no idea how the ISP's system will react if a system keeps using 
an IP address after a lease for it has expired and not been renewed, but 
I suspect the short answer is "Don't do that."