Subject: kern/4360: specific IP address UDP ports don't get broadcasts
To: None <gnats-bugs@gnats.netbsd.org>
From: John Kohl <jtk@kolvir.arlington.ma.us>
List: netbsd-bugs
Date: 10/26/1997 23:39:43
>Number: 4360
>Category: kern
>Synopsis: specific IP address UDP ports don't get broadcasts
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: kern-bug-people (Kernel Bug People)
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sun Oct 26 20:50:01 1997
>Last-Modified:
>Originator: John Kohl
>Organization:
NetBSD Kernel Hackers `R` Us
>Release: NetBSD 1.3_ALPHA
>Environment:
System: NetBSD kolvir.arlington.ma.us 1.3_ALPHA NetBSD 1.3_ALPHA (KOLVIR) #9: Sat Oct 25 22:52:08 EDT 1997 jtk@kolvir.arlington.ma.us:/u4/sandbox/src/sys/arch/i386/compile/KOLVIR i386
>Description:
It appears that UDP servers listening on a specific interface
address/socket pair do not receive broadcasts on those interfaces,
and/or inetd(8) doesn't fork off such servers when broadcast packets arrive.
>How-To-Repeat:
Bind "ip-address" as an alias on an ethernet interface.
Put a line like this in your inetd.conf:
ip-address:netbios-ns dgram udp wait root /usr/local/samba/bin/nmbd nmbd
Cause another host on the network to send a UDP broadcast to this port.
Watch that inetd never forks off nmbd.
>Fix:
>Audit-Trail:
>Unformatted: