Subject: port-macppc/15073: incorrect date prevents network from working
To: None <>
From: Michael Wolfson <>
List: netbsd-bugs
Date: 12/28/2001 02:54:12
>Number:         15073
>Category:       port-macppc
>Synopsis:       incorrect date prevents network from working
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    port-macppc-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Dec 27 23:55:00 PST 2001
>Originator:     Michael Wolfson
>Release:        NetBSD-1.5.2
PowerMacintosh 7300, NetBSD 1.5.2 release
System: NetBSD costello 1.5.2 NetBSD 1.5.2 (COSTELLO) #1: Sat Dec 15 20:00:44 EST 2001 mw@costello:/usr/nosrc/sys/arch/hp300/compile/COSTELLO hp300

If date is set too old, then network doesn't work.  No errors, it just 
doesn't transmit or receive packets.  
% ping
PING ( 56 data bytes
---- PING Statistics----
0 packets transmitted, 0 packets received,

Several users have reported this on different platforms (PowerBook G3, 
PowerMacintosh 7300).

This situation might arise if a user "zaps PRAM" on their mac, which will 
clear out the current date/time.  Also, when motherboard batteries die, 
the date is reset to either 1901 or 1956 (depending on model).

date 190101010101

Prevent bogus dates?