Messages in this thread | | | From | Martin Mares <> | Subject | Re: nfsroot anyone? | Date | Mon, 18 Mar 1996 15:16:15 +0100 (MET) |
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Hello,
> > (1) Linux machines are usually switched on during all the day, > > so assignment of dynamic IP addresses doesn't improve anything. > > Right and wrong: If you want to reconfigure a running machine now you > have to login to the machine, maybe bring it down and reconfigure. > With perfect DHCP you could just change the address in your DHCP > servers and in your BIND, and then wait for a while. > Summary: DHCP is not only useful for dialup connections!
I haven't ever said it's useful only for dialup connections -- an another example is a company network with hundreds of DOS/Windoze PC's each of them ocassionally using IP.
The dynamic reconfiguration of the hosts would be very nice, but it isn't so simple as it looks: no TCP connections can survive such network reconfiguration, not mentioning NFS and some other UDP services. Therefore the total effect is almost the same as in case of reboot.
> Maybe an ifconfig that can query DHCP servers would be nice. You > could still use cron to recheck the addresses validity from time to > time.
> > (4) All DHCP servers should be able to handle BOOTP requests. > Huh!? Don't they? DHCP is a set of vendor extensions (RFC1533, I > guess) together with a new protocol specification; thus every DHCP > reply is also a BOOTP reply (if I don't have tomatoes on my eyes).
Yes, they certainly do with exception of few buggy implementations that don't respond to queries without DHCP-specific options.
> A separate server/client would be fine, although there is on for > SUNOS 4.1 that doesn't run on more recent OS's.
I think so, too.
Martin
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