08-24-2009
How would the following scenario work?
Thanks for the answer. I still have some questions :-)
A client sends a DHCPDISCOVER to the router that acts both as a server and a relay. The server responds with a DHCPOFFER to the client and forwards the broadcast to the server specified in the relay, which also responds with a DHCPOFFER.
If the time difference between the arrival of the the DHCPOFFER messages from the two servers to the client is negligible, which one would the client use?
If the time difference is not negligible, then by the time the client gets the DHCPOFFER from the farther server, it will already have negotiated a lease with the server in it's segment.
I am still having trouble understanding what is the point of having both server and relay in the same machine.
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LEARN ABOUT OPENDARWIN
ypset
YPSET(8) BSD System Manager's Manual YPSET(8)
NAME
ypset -- tell ypbind(8) which YP server process to use
SYNOPSIS
ypset [-h host] [-d domain] server
DESCRIPTION
Ypset tells the ypbind(8) process on the current machine which YP server process to communicate with. If server is down or is not running a
YP server process, it is not discovered until a YP client process attempts to access a YP map, at which time ypbind(8) tests the binding and
takes appropriate action.
Ypset is most useful for binding a YP client that is not on the same broadcast network as the closest YP server, but can also be used for
debugging a local network's YP configuration, testing specific YP client programs, or binding to a specific server when there are many
servers on the local network supplying YP maps.
The options are as follows:
-h host
Set the YP binding on host instead of the local machine.
-d domain
Use the YP domain domain instead of the default domain as returned by domainname(1).
SEE ALSO
domainname(1), ypbind(8), ypcat(1), ypmatch(1), yppoll(8), ypwhich(1), yp(8)
AUTHOR
Theo de Raadt
BSD
October 25, 1994 BSD