ISC dhcpd and dhclient both accept -p options to use a different port number (you'd have to check that all the clients you use support this). You would need to implement the fallback yourself though (i.e. create a wrapper script which launches dhclient on the custom port and then launches it on the standard port if it doesn't get a lease).
ISC dhcpd and dhclient both accept
-poptions to use a different port number (you'd have to check that all the clients you use support this). You would need to implement the fallback yourself though (i.e. create a wrapper script which launchesdhclienton the custom port and then launches it on the standard port if it doesn't get a lease).