[OmniOS-discuss] dhcpd quits with error if subnet exists which is not in config file

[Bob Friesenhahn]

Today I added a temporary subnet on an interface for temporary 
testing.

When I restarted dhcpd, it went into maintenance state due to this 
error (setsockopt: IP_PKTINFO: Bad file number).  The complaint about 
the unknown subnet seems benign but the setsockopt error is not.  This 
issue seems harmful for servers which may have a lot of interfaces, 
which may come and go:

Mar  3 17:49:20 scrappy dhcpd: [ID 702911 daemon.error] No subnet declaration for igb1 (192.168.0.1).
Mar  3 17:49:20 scrappy dhcpd: [ID 702911 daemon.error] ** Ignoring requests on igb1.  If this is not what
Mar  3 17:49:20 scrappy dhcpd: [ID 702911 daemon.error]    you want, please write a subnet declaration
Mar  3 17:49:20 scrappy dhcpd: [ID 702911 daemon.error]    in your dhcpd.conf file for the network segment
Mar  3 17:49:20 scrappy dhcpd: [ID 702911 daemon.error]    to which interface igb1 is attached. **
Mar  3 17:49:20 scrappy dhcpd: [ID 702911 daemon.error]
Mar  3 17:49:26 scrappy dhcpd: [ID 702911 daemon.error] setsockopt: IP_PKTINFO: Bad file number
Mar  3 17:49:26 scrappy dhcpd: [ID 702911 daemon.error]
Mar  3 17:49:26 scrappy dhcpd: [ID 702911 daemon.error] If you think you have received this message due to a bug rather
Mar  3 17:49:26 scrappy dhcpd: [ID 702911 daemon.error] than a configuration issue please read the section on submitting
Mar  3 17:49:26 scrappy dhcpd: [ID 702911 daemon.error] bugs on either our web page at www.isc.org or in the README file
Mar  3 17:49:26 scrappy dhcpd: [ID 702911 daemon.error] before submitting a bug.  These pages explain the proper
Mar  3 17:49:26 scrappy dhcpd: [ID 702911 daemon.error] process and the information we find helpful for debugging..
Mar  3 17:49:26 scrappy dhcpd: [ID 702911 daemon.error]
Mar  3 17:49:26 scrappy dhcpd: [ID 702911 daemon.error] exiting.

Bob
-- 
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/